Thank you! I have the TS-851 which uses the Celeron J1800, which contains the same Intel manufacturing bug as the Atom. My NAS had failed to boot. In my case it was the lower FET in the CPU's LPC clock output driver which had weakened, so the average voltage of the clock waveform was too high. I have a digital storage oscilloscope so I was able to observe the clock waveform and optimise it. The LPC clock spec says it's average voltage should be 1.7V, and in my case, I found that adding a 150 ohm pull-down resistor was optimal to make the average voltage of the square-wave 1.7V. Then the NAS booted again, all the data was intact. (Yes all the data was all backed up to two other locations, but I'm still very happy that my NAS is working again)
For those that don't keep track of which drives came out of which slots, there is a procedure on QNAP's forum for identifying them. Depending on which firmware is installed, you can damage your data in the raided disk if you install them in the wrong order.
I am no electronics guy, but i did this fix on my TS-451 and it works. My wife is so impressed with me. Sorry I didn't tell her it was all your idea. Saved me $669.00 for a new qnap and I have some files I didnt have backed up. Thanks a bunch for posting this!!
Thank you, this fix has worked on my TS-653 PRO with the same booting issue problem. I had to solder the resistor 100ohm 0.5watt directly to the board as there are no posts on my board. I also used a 1mm mini drill bit to open the holes to feed the resistor legs thru the board, it made it easier to solder and trim the legs as required. It is amazing that QNAP support never mentioned this as a potential fix.
Thanks for this video. I did this to mine in december 2020 after it died. I didnt trust it after so I moved the critical stuff to a Nas I made using an old pc and use this one for redundant backups. It has been over 3 years now and it still works fine!
You totally saved my butt. I put a 100 ohm 1/2 watts resistor (that's all I can find) between clock and ground and it worked! All data is intact and learned to my lesson to start backup the data. It all started with a fan malfunction overheat warning. After I shut down and boot it backup, the fan was spinning fine and then I got all red LED. I even tried replacing the fan and it didn't help. Thank you so very much for your video and showing the pinout. I have a TS-451+ and it has 9 pins header as shown.
Thank you for the detailed video. Came home from work yesterday to find my 653 pro in "System Booting". Status light off. Blue usb on steady, and flashing ethernet. Drive bay lights were red. Checked voltage and it was high, so wacked a 100ohm resistor on pins 1 to 8. The pro doesn't have the posts so soldered it directly to pads. Tested and it fired back up. Put it all together and is back in business.
Fantastic video. I just fixed two TS-453Pro units this way. It's super easy on that model, no need to disassemble further than taking the cover off. Thank you!
Another happy customer here! My 6-year old NAS had finally died... Thanks to this info I was able to solder in a 100ohm resistor on my Qnap TS-453 Pro board and it booted immediately. My model had no headers, so I soldered directly to the board. Really appreciate you sharing this info so we can get our gear working again
You don't know how much I thank you. I fixed my 451+ with a 80 ohm, 0.5w resistor on pins 1 and 8. It measured around 2.36v originally, and with the resistor is doing 1.37v. Now I can recover my files!
Thank you for this video. I woke up to an unresponsive TS 451+ this morning after getting a "System fan failed" alert email over night. Powered it down and back up again to be met with the 4 red LED's of doom. Did a bit of Googling and came across your video which showed exactly the same symptoms as mine. Connected a 100 ohm resistor across pins 1 & 9 on the LPC connector and I now have a functioning NAS again. Cheers!
I want add my gratitude for this video that has been very helpful to keep my TS-251 alive!. One week ago, my NAS failed to boot and I was not able to access it anymore. Looking into the internet I found that video. I didn't want to believe that was my case, but the behaviour of my NAS was the same. I didn't have an oscilloscope to check for the clock spec, therefore I did the modification using a 100 ohm pull-down resistor and it worked well!. Thank you so much!.😀
Used multimeter to check between ground and LCKL and got 2,3V added a pull down at 100ohm between LCKL and ground and my device started to boot again. Thanks for a great video.
I was unaware of this issue until my TS-451 wouldn't boot. Thankfully I found this video! I do not have an oscilloscope, and didn't know what exactly my readings should by with a multimeter. I ordered some 100ohm resistors online. Soldered one on and it came back to life. Due to it already not working I took a shot in the dark as to what exactly my issue was. I ordered a newer nas, so this fix has to limp me along until it arrives. It is ashame they couldn't even give us a courtesy of the known issue, but then they would be admitting guilt and would be liable I guess. Thank you for having this information out there for anybody willing to try and revive their units.
Unfortunately I was not aware of this issue until today....when my TS-451+ failed. I was sitting right next to it and it beeped a few times, sent me a fan 1 fail error, ( the fan was still running), and half the drive lights went out. Unit did shut itself down, tried to restart, but could not boot. Looking SO forward to spending the foreseeable future trying to bring it back to life and recover my data. Thanks for paving the way.
@@mikevadnais7722 1/4 watt and worked very smooth. I don't know till when will this work, but for the last 20 days it has no issue. Maybe you should try a more thorough inspection with an oscilloscope, as the author of this video suggest. Really sorry hearing yours "died"...
@@konstantinostsogkas2692 Thanks for the response. I don't have a scope. I use this NAS for my Exterior Cameras. I bought a TS-251D for my other NAS, works great and will probably get another one to replace this one for the cameras. If I can fix it for 5 dollars and it goes another year or 2, then that would be great. I was just concerned my drives were gone when I first saw the issue. Thanks again.
Awesome tutorial. Your explanation just gave my TS-453+ new extension of life. I ended up using 110 ohms for mine couldnt find 100ohms for my jungle fix. seems stable so far. Mega Thanks
Thank you, I managed to bring my TS453 back thanks to your video 💪 I saw on other forums that you had to target around 1.7V. With no resistor installed and powered up, pin 1 & 8 was reading 2.34V. Installed a 75ohm resister between the two and it brought it down to 1.2V. This brought the LED indicators back to all green but was stuck on system booting so that failed. The 100ohm brought it down to 1.4V and got the same issue, just kept on system booting. The 120ohm worked for me, brought it to 1.55V so closer to the target 1.7 ideal. Got my data off the NAS, phew 😮💨 I also read that if the voltage read less than 1V then to stick the -100ohm between pin 1 and pin 6 instead, so theres that
This was very helpful. My header on TS451+ has 10 Pins. PCB is labeled 1 and 6 on the front (led/button side). I put two 220 Ohm resistors on pins 2 and 10. One 220 Ohm wasn't enough.
Thanks again to everyone that responded to my post. I got my 100 ohm resistor from Amazon today, and the QNAP TS-251 is up and running great again. If it saves me buying a new one for a year or two, the 5 dollar fix was well worth it. Could not just order one resistor, they came in pack of 10 :)
Much obliged for this video and I +1 your rant. I tried the same fix (100 ohm resistor across ping 1 & 8) and it worked like a charm. I'll not buy Qnap again and have started research building my own homeNAS. Thanks!
My TS-451 just died, same symptoms you described and showed here. I just ordered a new TS-451D2 to replace it but this does give me some hope of at least getting the broken one up and running again. I should have a 100ohm resister laying around somewhere and will give this a try, thanks.
Just happened to one of my 451+'s... I bought a new 451+ and dropped my drives into it..it also has the sys fan error!! So Going to fit the 100ohm resister to my original 451+ and try the replacement with a couple of fresh drives to see if it still has the sys fan error which is often a symptom of this issue... Thanks for the video
Thanks for your excellent video. I really appreciate that you put the 'scope on the pins so we can see the effect. My TS-451+ crapped out yesterday (I thought it was due to the eclipse - it wasn't lol). I didn't have a 100R resistor available, so I used a 150R, and that didn't work. I had a 1K trimmer available, which I adjusted to 100R, and my NAS is back in action! While I had the PCB out, I changed the battery and upgraded the RAM, so I'm hoping it will be good for a while. Thank you!
Hi, I confirm that a 100 ohms resistor, soldered between Pin 1 and Pin 8 of the motherboard black connector, did solve my problem immediately ! My TS-851 is up again and I am backuping my data (those that I had not previously saved) to other disks. This
Thanks for this video!! Had this issue two days ago with my 453 Pro, now awaiting resistor to arrive and then start sweating to get the fix in (hopefully)
Just fixed my TS-251 with the resistor connected to LCLK and ground. There is so little space on the 251 between the pins and the chassis when the mainboard is fitted so I had to bend the required pins 90 degrees to get the resistor in once the main board is fitted to avoid touching the chassis. In fact I had to completely dissemble the NAS to get anywhere near the pins. I don't have a scope so I tested with the board out, going for ground first which worked. I also used Dupont connectors to avoid soldering to the board, plus easier testing. These of course, as above will not fit without carefully bending the identified pins through 90 degrees. Many thanks to powerevolutions as I was on the verge of spending £350 on a new NAS.
Update on the repaired unit. It has been working for close to 8 months with the resistor fix and hasn't shown any other problems. On another note, be aware that QNAP along with other NAS driver manufacturers have experience a lot of problems with their security and ransomware. Make sure to update to the latest firmware versions and install security check software and virus scanner, and disable the Admin account to reduce the chance of ransomware encrypting your files.
Another happy viewer has resurrected his dead TS-451+. 100ohm to ground did the trick. Thank you, thank you thank you!! Mine failed on Friday. I ordered a new TS-451+ before finding out about this issue and successfully migrated the disks into it, so I have my NAS working already. I now have a backup unit which I/m considering populating with disks as a backup backup. I found the original 2gb sodimm I swapped out for the Crucial 8gb upgrade in 2016, so now have a 4gb unit as the 8gb is in the new one.
@@sprokies99 Neither drive was accessible. I couldn't access the system interface at all. Fan was running full blast. There was a red light on the front panel. It has been running fine since applying the fix.
Excellent and thank you for posting this. I have a TS-453 pro and although the header and IO IC are in different places it was not hard to find, with the LPC at the top edge of the PCB but with no pins soldered. The 97 ohm resistor goes between pad 1 and pad 10. My NAS is now working again. (-:
@32bits I have TS 453 I did the same solution with 100ohm with pin 1 and 8 but system didn't not is there a different pin which I need to put on resistor
@@abhishekthomas85 did you fix it i have the same problem like u i place 100ohm resi and i got 1.55 v not 1.7 maybe we need to change it to 95 or 97 ohm iam not sure
Thankyou powerevolutions it worked for my Qnap TS-253 Pro and just a hint after you hook up the 100 ohm resistor you have to wait a while before it starts up ....mine flashed LEDS and then died and after a while came back to life
Thanks very much for the instruction video. I had the exact same problem with my TS451+ and the resistor fix worked. Not sure how long this will last, I will get a external hard drive to backup the stuff in my NAS periodically.
Another happy viewer saying, "Thank you!" The pull down resistor revitalized my box and I'm pulling all of my data off of it now. No more QNAP products for me.
Thank you very much. I can confirm a 100Ohm resistor between GND and LClk solved the issue with a TS451U (Rack mount version). The connector is placed at a different spot, but is also labeled LPC-CN1🤑
At 2:56 time mark in the video the pinout is shown in the lower right corner. Look for the missing pin to identify the ground, +3V3 , and LCLK pins from the diagram. You will be connecting one end of the resistor to the LCLK pin lower right corner, and the other end to either the GND or +3V3 pin on the top left 2 pins. It depends on which part of the clock driver has failed as to which voltage level you need to pull the clock pin to. So there is some experimentation you will need to do unless you have a oscilloscope to view the LCLK waveform with. I have seen reports of failed units with the top portion of the totem pole driver blown as well as the lower side. Best to just connect it one way and power it up to see if it boots then try the other way, if you don't have access to a oscilloscope. Good luck.
Thank you, someone in a qnap forum pointed me to pins 1 and 8 which actually worked fine for me. immediately solved the boot problem. Hope it will stay like this for a while.
new repair tip - after using the nas with solution from this video (resistor direct soldered on pins) for a while it stopped working - I have few hours played with that - and have researched - that when cabled out to breadboard for splitting the signal for oscilloscope and quick resistor change - it works every time. also that has lead to probe the resistor soldered with double breadboard wire addon - which was not working - but when the wires were apart it has again begun to work - also the solution is - solder the resistor on each side on single breadboard wire (cover with heat shrinkable tube to protect agains shorts) and lead the wire with resistor included like one string around the nas motherboard - from one ground pin outgoing, under the board, to other side incoming to the clock pin - IT WORKS AGAIN ! :-) (please, who can explain ? what does the additional wire ? what it act like ? a capacitor ? a magnetic field capacitor ? or what ? because of the fact that when the wires are together, it doesn't work... the frequency must play a role there...)
Yep, and once the news starts to spread that they KNEW about the failure and carried on sending out kit they KNEW would die, I am guessing they will find they made a VERY poor judgement call.
yup, I lost my trust in them. I could have sent the board, pay my own shipping for a fix. I'm an IT guy, not a hardware/engineer. They could have kept a trust link between them and their customers. But this is a FU to our faces. I will revive mine but will be looking to migrate to another vendor if I don't come up with my own solution. edit: perhaps this was intel leaving them on their own. who knows, but they could have done something about it.
@@DJ_Megahertz a PR nightmare that could have been avoided by asking their customers to meet them in the middle and blame intel in the process. I am waiting for my Synology to get home! Got a good deal on it.
This guy saved my life today! I had this problem: one blue and two red lights on, silent HDs, all dead. I have a TS251 QNAP NAS, the motherboard looks the same of the TS451. I put a 120 ohms (I didn't have a 100 ohms) resistor as he did (better shown here: th-cam.com/video/UeiphU73ubo/w-d-xo.html) and voilà: now it is back to life! Thank you veeeeeery much :)
Thank you for a good video, I've come from a reddit post ("Warning - Many QNAP NAS are dying due to a CPU bug known 2 years ago"). TS-253 Pro (probably produced: 2014) that i rescure from the trash is working again. before logic high was 3,5V and low: 1,4V. I added 91R puldown resistor, and high is 2,9V and low 0,5V and It's working again. I gonna see how long it will last and search for a better solution than this, because those values balance closely to uncertainity voltage levels for CMOS
I can just add that this fixed my TS251+ The problem on my QNAP NAS was that it did not "see" Disc2. I could boot and use the NAS but without working Raid... Now it is working just fine after connecting a 100 ohm resistor between LCLK pin and GND.
powerevolutions 1 second ago For those that don't keep track of which drives came out of which slots, there is a procedure on QNAP's forum for identifying them. Depending on which firmware is installed, you can damage your data in the raided disks if you install them in the wrong order.
Looking up the unit on QNAP site, it says it still uses the J1900 processor, and there isn't any documentation that I have seen yet that says the bug is fixed in the silicon, though I think I saw something about them doing some stuff in the firmware to mitigate the LPC failures to increase the time to failure. Guess you get to roll the dice.
I have the opportunity to buy a second hand tS-451+ at good price. Should this resistor fix be done preemptively or just wait till it happens? Seems @powerevolutions fix has been working for almost two years.
Wait until it fails. Adding the resistor may hasten the failure, and cause it to fail such that you need to change the polarity of the resistor connection. Knowing the failure will occur eventually, I would hope that you get a good deal.
Thank u million times. but unfortunately after soldering R100ohm 1/4w on QNAP VS-2204 Pro+ on pins 1 and 8; it still sticks in "the system is starting up. plz wait... screen, would u tell me what would I do ?
Sorry I am not sure about that system, but it may also be the drive order is not correct. If the drives are not inserted in the order they came out it may not start up correctly. QNAP has the procedure listed on their site for bringing up a drive with mixed up order.
@@powerevolutions Thanks again for this great video and assistance. My NAS is operational again! now to deal with the qsnatch malware that I had no idea I had :(
Hi, this solution has partially worked for me… I used a 100ohm 1/4w resistor on pin 1/8. Now the nas boot (451+) but two leds are still red.. first two before the power button… there are other things that I can do? Just to be clear, I’m able to boot the nas and I see the user interface with hdmi connection (the boot time is quite long… around 8 minutes…) but two leds before the power button remain red…
either wattage will work but what you are looking for is a small 1/8 or 1/4 watt carbon low inductance resistor. The bigger you go on the physical size of the resistor the more inductance you will add which will create more ringing on the edges of the clock waveform. The most the pin could supply in power is ~0.1W not clocking so 1/8 or 1/4 watt is ok. When clocking it will be ~0.05W so pretty small.
Thanks. I am still working through this issue now. I have engaged with QNAP....but who knows what they will say. Would female pin connectors connecting the two pinouts accomplish the same results or must you use the resistors?
Told by QNAP that my issue sounds like a hardware issue and the product is end-of-life. Goodbye. WOW. Yeah, I'm eager to give them more money with that kind of customer support.
Always tough to diagnose without seeing signals with a scope. There are other instances of contamination of inter-board connectors which may affect things too. You could probably get some Isopropyl alcohol to clean them and re-assembly again.
Thanks for the video, very informative. The problem with my TS- 451+ nas is that the status light is not coming on, just remains off. The HD and LAN lights are on, showing green and flashibg orange, respectively. And the fan is on. Further, I'm unable to see the nas on my network. Would the presented solution solve my issue as well? TIA.
It doesn't sound like the same problem, since the flashing orange on the network led says it is seeing traffic on your ethernet connection which means the PHY was programmed. You may have a different problem. If you still want to check it out the LPC clock, you would need to borrow a scope to see the clock signal on the LPC port and compare it against what the signal levels should be.
Weird: I found the LPC Interface, but mine does NOT have a header soldered to it? Just the little shiny dots that a header would go on top of? Can I just solder the resistor to thiose dots? I also have a handheld mutimeter, pin 1 to 8 (in video above: very top left to almost bottom right on the header) measured 2.42V. Nas is from 2015 and only failed 2 days ago... Any tips on what else and how I could measure with my multimeter to confirm I'm on the right path? Thanks for the video, you're a life saver! PS: I have 100 Ohm 0.25 Watt resistor in the mail to me...
If the header wasn't populated, but the holes are there, then it should be easy to solder a through hole resistor in place. Just keep the leads relatively short. The silkscreen location on the board should indicate which side is the component insertion side for the header. This puts the pins in the correct orientation from what is shown in the diagrams when referencing it. If you are getting about 2.42V, then a pull down is required. Just double check against what is shown in the videos for pin locations. Good luck.
Hello there! Very nice video. I have a QNAP TS-251+ that works for for now. Can you please tell me if the failure would eventually be that the nas would turn off by it's own and would boot up with all red lights, it will the drive slowly will give red lights before all dying? I ask this as I have read some other people speaking about this and saying that it might start with a single drive failure and I can't understand on how to understand if it's simply really a disk failure or a nas failure. Plus to this they say that it should be a transistor failure in the drive pcb board that could be simply replaced, so completely different from your fix. They you in advance.
Sorry I am not sure about the other problems that might exist with these nas drives. The LPC clock failure is one of the dominant failure modes to date with that generation of processors. Knowing what the LPC is doing, I would not think a single hard drive failing would indicate a LPC clock that is about to fail. As for a single transistor failure, I haven't heard about that one yet.
Is this fix possible on a DE3815TYBE board with the same processor and exact problem? I don't seem to be able to locate such LPC pins :( If there are no such pins - is it possible to solder the resistor to some other chip/point/elc? Thank you!
I am not familiar with that board, but I looked at the datasheet and the only possible location that you can pick off the LPC port is on the ST33ZP24AR28PVSP which is listed as the TPM in the datasheet, and if it is a QFN package the pins won't be accessible. The E3800 family diagram only lists one LPC port so if you are lucky you may be able to get access to it if they ran the traces on the outer layers.
@@powerevolutions Thank you for looking into this - I really appreciate it. This task is slightly too much for my knowledge and understanding :( I won't be able to figure this out even with the info you gave me as I can just barely understand what it all means. I could solder a resistor if I would know, where exactly is should be attached (as already fixed my Synology NAS with an exact problem), but that about it.
Thank you !!!! 100 Ohm solved the issue and now it can boot again with all my data intact. I do have a question, how much time you think this rework will hold? Will the clock continue degradation and eventually stop functioning?
I personally don't keep anything on my drive that I can't afford to lose, however my thoughts on how long this will hold up is that the fix should last for a while now that the shoot through current is no longer there. The clock output is driven by a totem pole driver which has a "switch" to connect to the rail (3.3V) and one that connects to the ground. This failure is likely the result of a timing issue with the turn on and off of those switches. At a guess they had a brief time where both switches would be on briefly, which caused a shoot through current that is a high power dissipation time period. This thermally over loaded one of the switches to self destruct. It is possible that the other switch that remains operational is damaged and may fail eventually, but with the shoot through current removed or reduced significantly, this fix could work for years. My unit is still running.
I have a TS-251 but no soldering skills. I opened my NAS up & have the 9 pin LPC header in the same corner as the board in the video. Can you please suggest any way out for me?
If you don't feel confident enough to solder, you can practice before trying it. It doesn't have to be pretty, it just has to make a good contact. The other option is to find a friend who is confident in soldering or take it to a repair shop for them to do. Good luck.
Nice video and probably exactly the problem of my TS-451 which suddenly stopped working and doesn't boot anymore. What I'm not able to see in your video is the exact pins for the 100 Ohm resistor. Can you pls. point this out as well?
Yesterday in the middle of the night Ts-251 started humming. No response to buttons. I disconnected it. In the morning after turning on the power, the red diodes are red. Probably purchased in 2016 and operated 24/7. Very nice Intel. Have you planned this?
Thank you!
I have the TS-851 which uses the Celeron J1800, which contains the same Intel manufacturing bug as the Atom. My NAS had failed to boot.
In my case it was the lower FET in the CPU's LPC clock output driver which had weakened, so the average voltage of the clock waveform was too high.
I have a digital storage oscilloscope so I was able to observe the clock waveform and optimise it.
The LPC clock spec says it's average voltage should be 1.7V, and in my case, I found that adding a 150 ohm pull-down resistor was optimal to make the average voltage of the square-wave 1.7V.
Then the NAS booted again, all the data was intact.
(Yes all the data was all backed up to two other locations, but I'm still very happy that my NAS is working again)
Awesome work...glad you were able to get it up and running again.
For those that don't keep track of which drives came out of which slots, there is a procedure on QNAP's forum for identifying them. Depending on which firmware is installed, you can damage your data in the raided disk if you install them in the wrong order.
@@powerevolutions i have TS 453 URP i did try your solution but it isnt working how do I find out which resistor to put on, i used 100ohm resistor
@@selwin9095 If >1.65V likely needs a pulldown (resistor to ground), if
@@powerevolutions Among which pins are there to be measured?
I am no electronics guy, but i did this fix on my TS-451 and it works. My wife is so impressed with me. Sorry I didn't tell her it was all your idea.
Saved me $669.00 for a new qnap and I have some files I didnt have backed up. Thanks a bunch for posting this!!
How did you do it? Can you post a video?
@@StMickeyS I just followed the video
You saved me from having to buy a TS-464! The fix worked like a charm on my TS-451. Thank you!
Thank you, this fix has worked on my TS-653 PRO with the same booting issue problem. I had to solder the resistor 100ohm 0.5watt directly to the board as there are no posts on my board. I also used a 1mm mini drill bit to open the holes to feed the resistor legs thru the board, it made it easier to solder and trim the legs as required. It is amazing that QNAP support never mentioned this as a potential fix.
Thanks for this video. I did this to mine in december 2020 after it died. I didnt trust it after so I moved the critical stuff to a Nas I made using an old pc and use this one for redundant backups.
It has been over 3 years now and it still works fine!
You totally saved my butt. I put a 100 ohm 1/2 watts resistor (that's all I can find) between clock and ground and it worked! All data is intact and learned to my lesson to start backup the data. It all started with a fan malfunction overheat warning. After I shut down and boot it backup, the fan was spinning fine and then I got all red LED. I even tried replacing the fan and it didn't help. Thank you so very much for your video and showing the pinout. I have a TS-451+ and it has 9 pins header as shown.
Thank you for the detailed video. Came home from work yesterday to find my 653 pro in "System Booting". Status light off. Blue usb on steady, and flashing ethernet. Drive bay lights were red. Checked voltage and it was high, so wacked a 100ohm resistor on pins 1 to 8. The pro doesn't have the posts so soldered it directly to pads. Tested and it fired back up. Put it all together and is back in business.
Fantastic video. I just fixed two TS-453Pro units this way. It's super easy on that model, no need to disassemble further than taking the cover off. Thank you!
Another happy customer here! My 6-year old NAS had finally died...
Thanks to this info I was able to solder in a 100ohm resistor on my Qnap TS-453 Pro board and it booted immediately.
My model had no headers, so I soldered directly to the board. Really appreciate you sharing this info so we can get our gear working again
You don't know how much I thank you. I fixed my 451+ with a 80 ohm, 0.5w resistor on pins 1 and 8. It measured around 2.36v originally, and with the resistor is doing 1.37v. Now I can recover my files!
Thank you for this video. I woke up to an unresponsive TS 451+ this morning after getting a "System fan failed" alert email over night. Powered it down and back up again to be met with the 4 red LED's of doom. Did a bit of Googling and came across your video which showed exactly the same symptoms as mine. Connected a 100 ohm resistor across pins 1 & 9 on the LPC connector and I now have a functioning NAS again. Cheers!
I want add my gratitude for this video that has been very helpful to keep my TS-251 alive!.
One week ago, my NAS failed to boot and I was not able to access it anymore.
Looking into the internet I found that video. I didn't want to believe that was my case, but the behaviour of my NAS was the same.
I didn't have an oscilloscope to check for the clock spec, therefore I did the modification using a 100 ohm pull-down resistor and it worked well!.
Thank you so much!.😀
I haven't tried this yet but a development QNAP box just did the same thing. I am going to try this when I get home. Thanks for the video!
Thanks for your video. We were able to follow your directions and we have resurrected our dead NAS. Blessing on you!
Hi.
Mine was a high side totem pole failure.
So, I put a 100 Ohm resistance between pin 1 and 9 and it worked like a charm.
Thank you so much.
Used multimeter to check between ground and LCKL and got 2,3V added a pull down at 100ohm between LCKL and ground and my device started to boot again. Thanks for a great video.
I was unaware of this issue until my TS-451 wouldn't boot. Thankfully I found this video! I do not have an oscilloscope, and didn't know what exactly my readings should by with a multimeter. I ordered some 100ohm resistors online. Soldered one on and it came back to life. Due to it already not working I took a shot in the dark as to what exactly my issue was. I ordered a newer nas, so this fix has to limp me along until it arrives. It is ashame they couldn't even give us a courtesy of the known issue, but then they would be admitting guilt and would be liable I guess. Thank you for having this information out there for anybody willing to try and revive their units.
Unfortunately I was not aware of this issue until today....when my TS-451+ failed. I was sitting right next to it and it beeped a few times, sent me a fan 1 fail error, ( the fan was still running), and half the drive lights went out. Unit did shut itself down, tried to restart, but could not boot. Looking SO forward to spending the foreseeable future trying to bring it back to life and recover my data. Thanks for paving the way.
Thank you! Fix worked and brought voltage down between p1 and p10 from 2.3v to 1.287v and it all works now!
My 451+ just went, same as you. All RED LED. i followed your video and it did fix it. Thanks again for sharing this.
That fix works on my TS-251 too after I ordered a TS-264 as replacement. Now I am back to have 3 working NAS at home again. Thank you very much.
thank you for your video, thought i bought a brick ts-451 $30, followed your video and revived it. now have a good 4-bay nas for $30, awesome deal.
and is it still alive today?
Thank you my friend! The fix works absolutely perfect for my 451+. Your videos shows exactly every detail that need attention. Bravo!
Did you use a 1/4 or 1/2 Watt 100 Ohm Resistor. Mine just died last night, trying the fix. Thanks in advance
@@mikevadnais7722 1/4 watt and worked very smooth. I don't know till when will this work, but for the last 20 days it has no issue. Maybe you should try a more thorough inspection with an oscilloscope, as the author of this video suggest. Really sorry hearing yours "died"...
@@konstantinostsogkas2692 Thanks for the response. I don't have a scope. I use this NAS for my Exterior Cameras. I bought a TS-251D for my other NAS, works great and will probably get another one to replace this one for the cameras. If I can fix it for 5 dollars and it goes another year or 2, then that would be great. I was just concerned my drives were gone when I first saw the issue. Thanks again.
Thank you!
I hope it last. But thank you, we need more people like you.
Happiness is real when you share.
Your research saved my data. You are a very clever man, respect. Thank you.
Glad it helped out...I wish I could take credit for it, but this is just a collection of information that others have put together.
Awesome tutorial. Your explanation just gave my TS-453+ new extension of life. I ended up using 110 ohms for mine couldnt find 100ohms for my jungle fix. seems stable so far. Mega Thanks
hello dude, i want to ask you i have the ts-453 pro and he stuck in system booting if i solde a 100 ohms in 1 and 10 pad pin it will be work?
The failure on my TS-251+ was the high side. Adding a 100ohm resistor did the trick. Thank you so much!
Thank you, I managed to bring my TS453 back thanks to your video 💪 I saw on other forums that you had to target around 1.7V. With no resistor installed and powered up, pin 1 & 8 was reading 2.34V. Installed a 75ohm resister between the two and it brought it down to 1.2V. This brought the LED indicators back to all green but was stuck on system booting so that failed. The 100ohm brought it down to 1.4V and got the same issue, just kept on system booting. The 120ohm worked for me, brought it to 1.55V so closer to the target 1.7 ideal. Got my data off the NAS, phew 😮💨 I also read that if the voltage read less than 1V then to stick the -100ohm between pin 1 and pin 6 instead, so theres that
This was very helpful. My header on TS451+ has 10 Pins. PCB is labeled 1 and 6 on the front (led/button side). I put two 220 Ohm resistors on pins 2 and 10. One 220 Ohm wasn't enough.
Thanks again to everyone that responded to my post. I got my 100 ohm resistor from Amazon today, and the QNAP TS-251 is up and running great again. If it saves me buying a new one for a year or two, the 5 dollar fix was well worth it. Could not just order one resistor, they came in pack of 10 :)
Hi could you link the product you bought?
Much obliged for this video and I +1 your rant. I tried the same fix (100 ohm resistor across ping 1 & 8) and it worked like a charm. I'll not buy Qnap again and have started research building my own homeNAS. Thanks!
I did the same with my TS-251 and it works again - thank you!
Thanks for this. It worked on my older TS-251 like a charm.
Thank you, you and your resistance make my day ! My Ts-451+ is back on track :)
Thank you so much for this. My ts -251 is no longer a brick. Sadly I did buy a new unit before seeing the video.
Thanks a lot for this video. Let me add my self to the list of non boot to full boot. Works perfectly!
Thanks for posting this! This fixed my TS-451.
This worked like a charm. I was able to access my data just fine.
My TS-451 just died, same symptoms you described and showed here. I just ordered a new TS-451D2 to replace it but this does give me some hope of at least getting the broken one up and running again. I should have a 100ohm resister laying around somewhere and will give this a try, thanks.
This worked. Thanks for the video, very helpful!
Just happened to one of my 451+'s... I bought a new 451+ and dropped my drives into it..it also has the sys fan error!! So Going to fit the 100ohm resister to my original 451+ and try the replacement with a couple of fresh drives to see if it still has the sys fan error which is often a symptom of this issue... Thanks for the video
Buyer beware indeed. Thanks a mill, this fix works on my TS-251+ but I still find it a bit surreal.
Thanks for your excellent video. I really appreciate that you put the 'scope on the pins so we can see the effect.
My TS-451+ crapped out yesterday (I thought it was due to the eclipse - it wasn't lol). I didn't have a 100R resistor available, so I used a 150R, and that didn't work. I had a 1K trimmer available, which I adjusted to 100R, and my NAS is back in action! While I had the PCB out, I changed the battery and upgraded the RAM, so I'm hoping it will be good for a while.
Thank you!
Thanks so much. I shorted the 1-st and the 10-th pin with 100R resistor and 453s works again.
Hi,
I confirm that a 100 ohms resistor, soldered between Pin 1 and Pin 8 of the motherboard black connector, did solve my problem immediately !
My TS-851 is up again and I am backuping my data (those that I had not previously saved) to other disks.
This
Did you upload the video ?
@@abhijithnaidu yes I did, and I have added the link showing the pins for the resistor soldering: do you have any problem to watch it ?
Absolutely fantastic work! Many thanks!
Thanks for this video!! Had this issue two days ago with my 453 Pro, now awaiting resistor to arrive and then start sweating to get the fix in (hopefully)
Just fixed my TS-251 with the resistor connected to LCLK and ground. There is so little space on the 251 between the pins and the chassis when the mainboard is fitted so I had to bend the required pins 90 degrees to get the resistor in once the main board is fitted to avoid touching the chassis. In fact I had to completely dissemble the NAS to get anywhere near the pins. I don't have a scope so I tested with the board out, going for ground first which worked. I also used Dupont connectors to avoid soldering to the board, plus easier testing. These of course, as above will not fit without carefully bending the identified pins through 90 degrees. Many thanks to powerevolutions as I was on the verge of spending £350 on a new NAS.
Update on the repaired unit. It has been working for close to 8 months with the resistor fix and hasn't shown any other problems. On another note, be aware that QNAP along with other NAS driver manufacturers have experience a lot of problems with their security and ransomware. Make sure to update to the latest firmware versions and install security check software and virus scanner, and disable the Admin account to reduce the chance of ransomware encrypting your files.
I prefer Synology to QNAP for security and interface.
Can we get a close up of the pins, mine is not missing a pin
@@SeanSR th-cam.com/video/UeiphU73ubo/w-d-xo.html
Is it still running or did you decide to bin it after a time?
Still running still not trusted lol@@TheGoodOldDays-IsNow
Thanks man! You saved my QNAP and my data ! 100 Ohm resistor did the trick.
Another happy viewer has resurrected his dead TS-451+. 100ohm to ground did the trick. Thank you, thank you thank you!! Mine failed on Friday. I ordered a new TS-451+ before finding out about this issue and successfully migrated the disks into it, so I have my NAS working already. I now have a backup unit which I/m considering populating with disks as a backup backup. I found the original 2gb sodimm I swapped out for the Crucial 8gb upgrade in 2016, so now have a 4gb unit as the 8gb is in the new one.
Thank you!
Your fix worked perfectly for my TS-251+.
What was the symptom of your ts 251+ ?
Got one which is only picking up drive 1. Seems like drive 2 port is gone or something...
@@sprokies99 Neither drive was accessible. I couldn't access the system interface at all. Fan was running full blast. There was a red light on the front panel. It has been running fine since applying the fix.
worked perfectly on my TS251+
Thank you mate!
Soo many thanks for making this video! Fixed my TS-453 pro.
one more success story - 1/4w 100ohm resistor across Lclk and Gnd did the trick for me. Thanks!
You saved me £140 with this video. Qnap RMA for shit. 6p 120 Ohm later and NAS back up and running. Big Thanks.
Thank you for posting this - it saved me from selling my NAS for parts.
Does it matter if the resistor is 1/4 or 1/2 watt? My TS-251 died last night with all these same symptoms.
Legend, thanks so much for this video. Back up and running 🎉
Thank you so much ! amazing help to solve the clock issue. You saved my money and my files !! Great thanks ! it works fine.
Excellent and thank you for posting this. I have a TS-453 pro and although the header and IO IC are in different places it was not hard to find, with the LPC at the top edge of the PCB but with no pins soldered. The 97 ohm resistor goes between pad 1 and pad 10. My NAS is now working again. (-:
@32bits I have TS 453 I did the same solution with 100ohm with pin 1 and 8 but system didn't not is there a different pin which I need to put on resistor
@@abhishekthomas85 did you fix it i have the same problem like u i place 100ohm resi and i got 1.55 v not 1.7 maybe we need to change it to 95 or 97 ohm iam not sure
Thank you so much! My so-called 'bricked unit is functional (since last 4 hours atleast :). It worked for me (TS-253 Pro).
Thankyou powerevolutions it worked for my Qnap TS-253 Pro and just a hint after you hook up the 100 ohm resistor you have to wait a while before it starts up ....mine flashed LEDS and then died and after a while came back to life
What pin you use with resistor ?
You are a scholar and a gentleman. $5 and an hour of my time just fixed my TS-251.
James, what wattage did you use for the resistor? 1/4 or 1/2 watt. I see Amazon has both. Thanks
@@mikevadnais7722 I used the 1/2 watt.
@@JamesMetcalf77 Thank You, just ordered them from Amazon.
@@mikevadnais7722 you're welcome. It will take you at most an hour to disassemble, solder, test, reassemble.
Thanks very much for the instruction video. I had the exact same problem with my TS451+ and the resistor fix worked. Not sure how long this will last, I will get a external hard drive to backup the stuff in my NAS periodically.
Another happy viewer saying, "Thank you!" The pull down resistor revitalized my box and I'm pulling all of my data off of it now. No more QNAP products for me.
Thank you very much. I can confirm a 100Ohm resistor between GND and LClk solved the issue with a TS451U (Rack mount version). The connector is placed at a different spot, but is also labeled LPC-CN1🤑
Success ! QNAP TS-251+, 100 ohm resistor Pin 1 & Pin 2. Thank you very much!
Another TS-451 was saved because of this video!
Thanks for this. Solved the problem as described. nice.
At 2:56 time mark in the video the pinout is shown in the lower right corner. Look for the missing pin to identify the ground, +3V3 , and LCLK pins from the diagram. You will be connecting one end of the resistor to the LCLK pin lower right corner, and the other end to either the GND or +3V3 pin on the top left 2 pins. It depends on which part of the clock driver has failed as to which voltage level you need to pull the clock pin to. So there is some experimentation you will need to do unless you have a oscilloscope to view the LCLK waveform with. I have seen reports of failed units with the top portion of the totem pole driver blown as well as the lower side. Best to just connect it one way and power it up to see if it boots then try the other way, if you don't have access to a oscilloscope. Good luck.
Thank you,
someone in a qnap forum pointed me to pins 1 and 8 which actually worked fine for me. immediately solved the boot problem. Hope it will stay like this for a while.
CAN WE GET AN UPDATE VIDEO WITH A CLOSE UP OF THE PINS TO SOLDER TO?
@@SeanSR That would be very helpful.
Here is some additional photos that may be useful for people. thank you for all the work you did: jim.akesons.com/projects/qnap-ts-451-repair
@@jimakeson9877 Thanks for posting. Every bit helps for those that are hitting this problem.
Thanks a lot for this video! True hero
new repair tip - after using the nas with solution from this video (resistor direct soldered on pins) for a while it stopped working - I have few hours played with that - and have researched - that when cabled out to breadboard for splitting the signal for oscilloscope and quick resistor change - it works every time. also that has lead to probe the resistor soldered with double breadboard wire addon - which was not working - but when the wires were apart it has again begun to work - also the solution is - solder the resistor on each side on single breadboard wire (cover with heat shrinkable tube to protect agains shorts) and lead the wire with resistor included like one string around the nas motherboard - from one ground pin outgoing, under the board, to other side incoming to the clock pin - IT WORKS AGAIN ! :-) (please, who can explain ? what does the additional wire ? what it act like ? a capacitor ? a magnetic field capacitor ? or what ? because of the fact that when the wires are together, it doesn't work... the frequency must play a role there...)
this worked on my Qnap TS 251+ with the 100ohm resistor on the 1 and 8 pin
Thank you very much, I had exactly the same error.
It is a joke that the company Qnap has not made a recall.
Yep, and once the news starts to spread that they KNEW about the failure and carried on sending out kit they KNEW would die, I am guessing they will find they made a VERY poor judgement call.
yup, I lost my trust in them. I could have sent the board, pay my own shipping for a fix. I'm an IT guy, not a hardware/engineer. They could have kept a trust link between them and their customers. But this is a FU to our faces. I will revive mine but will be looking to migrate to another vendor if I don't come up with my own solution.
edit: perhaps this was intel leaving them on their own. who knows, but they could have done something about it.
I have these words : CLASS ACTION LAWSUIT!
@@DJ_Megahertz a PR nightmare that could have been avoided by asking their customers to meet them in the middle and blame intel in the process.
I am waiting for my Synology to get home! Got a good deal on it.
This guy saved my life today! I had this problem: one blue and two red lights on, silent HDs, all dead. I have a TS251 QNAP NAS, the motherboard looks the same of the TS451. I put a 120 ohms (I didn't have a 100 ohms) resistor as he did (better shown here: th-cam.com/video/UeiphU73ubo/w-d-xo.html) and voilà: now it is back to life! Thank you veeeeeery much :)
TS-253 Pro. Same synptoms and same problem. Pull-down resitor 100om in GND+LPC_CLK line. NAS works fine.
Thank you for a good video, I've come from a reddit post ("Warning - Many QNAP NAS are dying due to a CPU bug known 2 years ago").
TS-253 Pro (probably produced: 2014) that i rescure from the trash is working again. before logic high was 3,5V and low: 1,4V. I added 91R puldown resistor, and high is 2,9V and low 0,5V and It's working again. I gonna see how long it will last and search for a better solution than this, because those values balance closely to uncertainity voltage levels for CMOS
THX!
CLK GND
Working properly!
Fan speed & #3bay & #4bay recovered!
Many thanks
I can just add that this fixed my TS251+ The problem on my QNAP NAS was that it did not "see" Disc2. I could boot and use the NAS but without working Raid... Now it is working just fine after connecting a 100 ohm resistor between LCLK pin and GND.
hi, can you tell me the position of the pins? thanks
Thank you! You save my TS-251 :)
powerevolutions
1 second ago
For those that don't keep track of which drives came out of which slots, there is a procedure on QNAP's forum for identifying them. Depending on which firmware is installed, you can damage your data in the raided disks if you install them in the wrong order.
Could you please point towards this link? it would help a lot of us amateurs.
@@AB-WhyAlwaysMe forum.qnap.com/viewtopic.php?t=128491
@@powerevolutions thank you sir.
Great video. Thanks. Is this the problem with all T451+ or only the ones that came back in 2016? Mine is 2019 purchase.
Looking up the unit on QNAP site, it says it still uses the J1900 processor, and there isn't any documentation that I have seen yet that says the bug is fixed in the silicon, though I think I saw something about them doing some stuff in the firmware to mitigate the LPC failures to increase the time to failure. Guess you get to roll the dice.
I have the opportunity to buy a second hand tS-451+ at good price. Should this resistor fix be done preemptively or just wait till it happens? Seems @powerevolutions fix has been working for almost two years.
Wait until it fails. Adding the resistor may hasten the failure, and cause it to fail such that you need to change the polarity of the resistor connection. Knowing the failure will occur eventually, I would hope that you get a good deal.
Thanks for the video
Thank u million times. but unfortunately after soldering R100ohm 1/4w on QNAP VS-2204 Pro+ on pins 1 and 8; it still sticks in "the system is starting up. plz wait... screen, would u tell me what would I do ?
Sorry I am not sure about that system, but it may also be the drive order is not correct. If the drives are not inserted in the order they came out it may not start up correctly. QNAP has the procedure listed on their site for bringing up a drive with mixed up order.
Thank you for this video. It describes my problem exactly! Quick question, do I need this resistor 10EP512100R or this one 10EP514100R?
Use the 10EP514100R 1/4Watt and keep the lead length short to minimize the inductance added. Good luck.
@@powerevolutions Thank you so much! :) I'll let you know if it worked!
@@powerevolutions Thanks again for this great video and assistance. My NAS is operational again! now to deal with the qsnatch malware that I had no idea I had :(
Hi, this solution has partially worked for me… I used a 100ohm 1/4w resistor on pin 1/8. Now the nas boot (451+) but two leds are still red.. first two before the power button… there are other things that I can do? Just to be clear, I’m able to boot the nas and I see the user interface with hdmi connection (the boot time is quite long… around 8 minutes…) but two leds before the power button remain red…
Great video. Thank you for doing this. A few questions though. 0,25watt or 0,5watt resistor and will metal film resistors be ok ?
either wattage will work but what you are looking for is a small 1/8 or 1/4 watt carbon low inductance resistor. The bigger you go on the physical size of the resistor the more inductance you will add which will create more ringing on the edges of the clock waveform. The most the pin could supply in power is ~0.1W not clocking so 1/8 or 1/4 watt is ok. When clocking it will be ~0.05W so pretty small.
Thanks..so a metal film resistor is also fine ?@@powerevolutions
@@DenHvideHund metal film resistors will be ok
Thanks. I am still working through this issue now. I have engaged with QNAP....but who knows what they will say. Would female pin connectors connecting the two pinouts accomplish the same results or must you use the resistors?
Told by QNAP that my issue sounds like a hardware issue and the product is end-of-life. Goodbye. WOW. Yeah, I'm eager to give them more money with that kind of customer support.
You can add a female header too the resistor soldered on. You just have to keep the leads short on the resistor.
I put the resistor and now get 1.7V on the pin. The four red leds now disappear but my TS253 PRO not boot (i can’t hear the beep). What do you think ?
Always tough to diagnose without seeing signals with a scope. There are other instances of contamination of inter-board connectors which may affect things too. You could probably get some Isopropyl alcohol to clean them and re-assembly again.
I have the TS451+, slots 3 and 4 appear to no longer provide power to the disks. Slots 1 and 2 are ok. Any idea?
Thanks for the video, very informative. The problem with my TS- 451+ nas is that the status light is not coming on, just remains off. The HD and LAN lights are on, showing green and flashibg orange, respectively. And the fan is on. Further, I'm unable to see the nas on my network. Would the presented solution solve my issue as well? TIA.
It doesn't sound like the same problem, since the flashing orange on the network led says it is seeing traffic on your ethernet connection which means the PHY was programmed. You may have a different problem. If you still want to check it out the LPC clock, you would need to borrow a scope to see the clock signal on the LPC port and compare it against what the signal levels should be.
@@powerevolutions Thanks. It ended up being bad ram. Working now.
Weird: I found the LPC Interface, but mine does NOT have a header soldered to it? Just the little shiny dots that a header would go on top of? Can I just solder the resistor to thiose dots? I also have a handheld mutimeter, pin 1 to 8 (in video above: very top left to almost bottom right on the header) measured 2.42V. Nas is from 2015 and only failed 2 days ago... Any tips on what else and how I could measure with my multimeter to confirm I'm on the right path? Thanks for the video, you're a life saver! PS: I have 100 Ohm 0.25 Watt resistor in the mail to me...
If the header wasn't populated, but the holes are there, then it should be easy to solder a through hole resistor in place. Just keep the leads relatively short. The silkscreen location on the board should indicate which side is the component insertion side for the header. This puts the pins in the correct orientation from what is shown in the diagrams when referencing it. If you are getting about 2.42V, then a pull down is required. Just double check against what is shown in the videos for pin locations. Good luck.
Hello there! Very nice video. I have a QNAP TS-251+ that works for for now. Can you please tell me if the failure would eventually be that the nas would turn off by it's own and would boot up with all red lights, it will the drive slowly will give red lights before all dying?
I ask this as I have read some other people speaking about this and saying that it might start with a single drive failure and I can't understand on how to understand if it's simply really a disk failure or a nas failure.
Plus to this they say that it should be a transistor failure in the drive pcb board that could be simply replaced, so completely different from your fix.
They you in advance.
Sorry I am not sure about the other problems that might exist with these nas drives. The LPC clock failure is one of the dominant failure modes to date with that generation of processors. Knowing what the LPC is doing, I would not think a single hard drive failing would indicate a LPC clock that is about to fail. As for a single transistor failure, I haven't heard about that one yet.
Is this fix possible on a DE3815TYBE board with the same processor and exact problem?
I don't seem to be able to locate such LPC pins :( If there are no such pins - is it possible to solder the resistor to some other chip/point/elc? Thank you!
I am not familiar with that board, but I looked at the datasheet and the only possible location that you can pick off the LPC port is on the ST33ZP24AR28PVSP which is listed as the TPM in the datasheet, and if it is a QFN package the pins won't be accessible. The E3800 family diagram only lists one LPC port so if you are lucky you may be able to get access to it if they ran the traces on the outer layers.
@@powerevolutions Thank you for looking into this - I really appreciate it.
This task is slightly too much for my knowledge and understanding :( I won't be able to figure this out even with the info you gave me as I can just barely understand what it all means. I could solder a resistor if I would know, where exactly is should be attached (as already fixed my Synology NAS with an exact problem), but that about it.
Thank you !!!!
100 Ohm solved the issue and now it can boot again with all my data intact.
I do have a question, how much time you think this rework will hold?
Will the clock continue degradation and eventually stop functioning?
I personally don't keep anything on my drive that I can't afford to lose, however my thoughts on how long this will hold up is that the fix should last for a while now that the shoot through current is no longer there. The clock output is driven by a totem pole driver which has a "switch" to connect to the rail (3.3V) and one that connects to the ground. This failure is likely the result of a timing issue with the turn on and off of those switches. At a guess they had a brief time where both switches would be on briefly, which caused a shoot through current that is a high power dissipation time period. This thermally over loaded one of the switches to self destruct. It is possible that the other switch that remains operational is damaged and may fail eventually, but with the shoot through current removed or reduced significantly, this fix could work for years. My unit is still running.
I have a TS-251 but no soldering skills. I opened my NAS up & have the 9 pin LPC header in the same corner as the board in the video. Can you please suggest any way out for me?
If you don't feel confident enough to solder, you can practice before trying it. It doesn't have to be pretty, it just has to make a good contact. The other option is to find a friend who is confident in soldering or take it to a repair shop for them to do. Good luck.
@@powerevolutions Thank you. I will take it to a repair shop. But cant I just use a clamp to connect the resistor while I copy off my data?
someone has an detailed link to a shop who sells these 100 ohm+ transistor?
Nice video and probably exactly the problem of my TS-451 which suddenly stopped working and doesn't boot anymore. What I'm not able to see in your video is the exact pins for the 100 Ohm resistor. Can you pls. point this out as well?
Found out through forum.qnapclub.de. For those wondering: it's pin 1 and 8 and now my server works as before.
Would be nice with some instructions how where to exactly the resistor shall be placed.
Yesterday in the middle of the night Ts-251 started humming. No response to buttons. I disconnected it. In the morning after turning on the power, the red diodes are red. Probably purchased in 2016 and operated 24/7. Very nice Intel. Have you planned this?