Two desktops for repair, one easy and one autopsy - LFC
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- เผยแพร่เมื่อ 30 ม.ค. 2024
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+1 for having more desktop PC videos. That second PC was actually very interesting to diagnose.
Agreed. I enjoy the desktop fix videos the most, by far.
Agreed
Seeing that pulse in the PCH and coming out into that trace was one of the coolest things I've ever seen in PC repair. Very cool thing to watch. Thanks for the great videos!
I'd have said "the hottest" - I'll get my coat...
@@chrismoule7242 Hahahaha, clearly I should have spent more time learning from the master. Well played sir!
Yeah, it was like a beating heart.
Very cool to see the pulsating PCH, very nice video, Graham!
I hear what you're saying, but I get so much from hearing how the malfunction is manifesting itself...then following your thought processes. Great videos, and very much appreciated.
"Customer comes in saying they were working on their PC, then an issue happened". Yup, you know where this one is heading. Always a good lesson, even tho' not being the most glam of content, to those working on their pcs to check everything, or understand what you're fiddling about with.
I love when you do desktop PC repairs.
I like that you respect the peel. 😁
The house I moved into still had the old clothes washer and dryer in it. Washer is broken, dryer works, *BOTH* still have their respective peels yet, lol.
I think people like the desktops because most enthusiasts can probably relate to them more.
Thank you so much for this repair video. I learned so much from it, especially from the PC motherboard fail of the second computer! Best wishes and thank you again! Much appreciated.
Done watching, thank you very much for the informative repair video. I have learned significantly more troubleshooting & repair lessons in this tutorial video and to your other repair videos as well compared to my ENTIRE 4 YEARS OF COLLEGE due to the rotten & outdated standards of education here in the Philippines. I hope you will soon have a mini-series for Schematic & Boardview-free Voltage/Power Rail Tracing[12V/18-20V Main Voltage Rail, 5V, 3.3V, CPU/GPU Core Voltage Rail, DRAM Voltage Rail, IGPU Voltage Rail, System Agent/Northbridge Voltage Rail, PCH Voltage Rail, BIOS Voltage Rail, Battery Power Rail], Proper method of testing/checking of potentially faulty MOSFETs & ICs/Controller Chips, CPU/GPU/PCH Reballing and BIOS Bin File Editing.
ahhh ...feel like homecoming! :D thanks for the "desktop" related contet! ready to more to come! 👍
even tho you have that often the easy ones why not jist record it and when you had like 3 or 4 systems the edit and uplead even this is interesting the commom faults are just as fun to watch then full repair stuff
Yea I want to start making a habit of that.
Thankx for sharing with us. Great content. Greetings from Steven from the Netherlands
I've just subscribed to your channel, because I love your PC fault finding methods and abundance of knowledge.
I will learn a lot from your content and I will share your videos as much as possible.
I've always loved tech repair and troubleshooting, there's some things to consider though. The HP short circuit may not have been a blown MB in the first place, HP has been known to use boards with alternate pinouts on the power connectors. I've seen many people that put a retail PSU in to upgrade and it blows up. also the ram in the 1st one was also in the wrong slot, it should have been in the 2nd from CPU.
great video
Definitely room for a UK Fix Or Flop series!
Who is the criminal who put a single 8gig module of 2666Mh ram on a 2700X? And who is insane enough to be willing to pay service for a s1150 system that costs half the cost of the repair?
whatever you uploaded as long as it is related to repair of computers it is always interesting for beginners and pretty sure we will learn from it keep sharing we will support you im a fan from the philippines
Thanks for the upload, keep 'em coming! 👍
Very cool video. Loved the autopsy portion.
Worked on a machine once that had corroded "gold" connections on the DIMM's. The sticks were from one of the mid level manufactures. No signs of water damage. Was a bit unexpected cause for issues.
With regards to the first PC, I have seen memory modules - and CPUs - gradually work their way loose from thermal expansion, but not for many years.
I loved the callback when you brought out the multimeter.
Love to see any pc motherboard diagnostics TH-cam is lacking in these type of videos its all macbook stuff!!
another great video, many thanks.
What a retro case layout in the second part.
Soon as you opened this thing I looked instantly at the lonely little stick of ram. Repairing/building computers is by far my dream jobs.
Nice looking accoustic bass !
Was just about to comment that lol. Not surprised, Graham has a very bassist vibe, and I mean that in the best possible way
Your videos are a great encouragement. I've professionally done hardware repair for 18 years now but after seeing so many of your excellent videos I'm pushing myself to learn schematics/boardview to dive deeper...and find the actual component that failed on the part that isolation troubleshooting leads to. Thank you!
dude, excellent videos? 🤣🤣🤣🤣🤣
Yep, great video. very interesting post mortem on the second PC.
Wow, that Flir camera is amazing, so interesting to see the tracks pulsing with heat.
It's not a flir it's made by infiray I believe.
I think people learn the best lessons from the otherwise simplest examples. Also, personally I'm always fascinated to watch "no post" or "unstable" desktops .. the reason is simple .. ahead of time trying to figure out the "who done it."
.. It would be funny and interesting just to put a montage of your initial dialogue about what the customer states is wrong and then you just simply turn it on and it turns on.
Hey thanks for the desktop video...as promised LOL love you❤
Its always good to show even the simple resolutions as it can flumox anyone new to bulding PCs.
Desktop 1, loose memory module: I had one like that not long ago. Brand new custom build, and the customer had tried to shove a stuck of DDR5 RAM into a DDR4 slot. Not only did it not fit and not work, but he ruined a memory slot. Good thing his board has 4 of them and he really only needs 2 slots...
I love the Desktop Content also the most.
👍👍😎✌️🤟 Thanks, for doing the mundane. Always entertaining.
If you plonk in the Chipmunk USB Tester that will show you if the cpu is running.
Yup, I do use the Chipmunk on stuff fairly often - it would've been my next move on the first PC if it hadn't been a simple RAM issue!
Nice desktop disasters lol love them, very surprising sometimes if you see what customers do in them hehe.
Woot LFC is back!
Especially the 2nd video was incredibly entertaining. Not every video needs to be educational or even a successful repair.
I think it is worth showing things like memory not pushed in right. Simple fix but it might help someone
I like to see the repairs and hints even if it discussion of USB connections
@Adamant_IT Hi Graham, very interested in the autopsy! I have an old ASRock z97 extreme 4 with a power regulator that burns up when power is given to the PSU. The power regulator is right next to the PCH. The interesting thing is that if I short two of the output pins shortly after PSU is turned on then the power regulator does not burn up and can sit there indefinitely until the power button is pressed and the system powers on as if nothing is wrong. I have replaced the power regulator and the problem persists. I dont have a thermal camera to hand unfortunately. Any suggestions? My previous fix was to solder a couple of wires to these pins with a power button attached and this made it functional. PS: I plugged the PSU into an isolator that trips when power is disconnected to ensure no fire risk after a power cut!
Understanding laptops to me helps with desktop motherboards. Been a mechanic for 26 + years so whether it's diesel or gas, a engines a engine just different accessories
This was what happened to me the other day. I had a loud freezing/speakers sounding mental crash and had to hard reset, where I got no post. I was shitting myself that the 3080 was toast but like this example, somehow the memory had come loose. No idea how.
Seeing the flames coming out from where the processor is after you used and turned on the over powered main supply told me it would have to be a miracle to getit working. Looked like you blow the motherboard
That was a clip from a different board with a short on an earlier video.
That PCH ripple was really interesting
Great video! The first one, the CPU heat sink was visibly full of dirt-fluff under the RGB fan. Did the customer pay for a cleaning? Did you throw that cleaning in for free?
Nice easy money Graham !!!! 😁😁😁😁
I think the easy fixes as you call them are valuable, to you and many others it is easy fix but someone might just see that and check what you did and you solved their problem.
I have a similar problem like the 2nd board....BUT if I short the black/green wires when all plugged in the board actually posts!
That first one is strange: nice modern system, absolutely vanilla memory module (no heat spreader, basic paper sticker). Makes me wonder if they replaced their own RAM as a diagnostic step and there aren’t other modules elsewhere.
love to see more milti part desktop repairs on low upload weeks
Well .. a brand new chinese replica of an H81 ( with used chipset ) probably cost 69 euros on amazon..
Had a PC once that would not power on after trying everything. Ended up it was the power switch. Replaced it with one I had laying around and problem fixed after 5 hours.
Yea this is why it's worth checking the power button with a multi-meter. If the voltage there had been stable, my next move would have been to push the power button and see if the voltage dropped on button-press, since the button pulls that signal low to tell the mobo to turn on.
Bad power buttons are pretty rare though, don't blame you for getting caught out by that!
hi there what probes are you using with you multimeter, the long needle ones, as i would like to get some thankyou very much and keep up the great work
BST-050 JP Superfine
www.aliexpress.com/item/1005001557245171.html?spm=a2g0o.order_list.0.0.6cca1802Tr63C4
Actually many PSU's have had no power to the system as a result of a short on the 12v rail on a graphics cards via supplemental power supply.
Any videos for repairing. Cirguog bios in an old Hp laptop?
I had same motherboard. GA-H81M-S2PV rev 1.0. Died 1 year ago, same issue :))
Is there a website where i can buy that plug-in phone thermal camera? Seems like a useful bit of kit :) also, that diagnosing on the second PC was way more complicated than i expected
Thermal cam is an Infiray P2 Pro, cheapest place to get it is Aliexpress: s.click.aliexpress.com/e/_DB5x7yd
27:38 the owner may be caring for it a bit; a good replacement would be a ECS H81H3-I for example, they are quite cheap...
Looks like a 10 year old office PC, thank you for your service. You'll find it hard to get a new 1150 socket motherboard but you probably will find a newer one and a cheap CPU (somewhere in the 9000's), if Quincey did autopsies on PC's he'd copy you. Great video and every day's a school day. The pulse on the PCH was awesome, cause of death 99.9% certain 😎
I wonder if anyone can help with an issue I have with a PC POST diagnostic card I bought to help find why the PC I just built based on a B650 MSI motherboard wont boot up .
I bought it and found it was clearly not going to fit into PCIe x1 slot so I thought I will get an adapter for it. It has a row of 18 pins then a further 7 pins.
All the adapter boards I have seen have 18 pins followed by 8. Can anyone suggest why I appear to have one less pin on this POST test card and whether there is an adapter board out there which will work with it or is there a work around ?
Many laptops today come with the memory soldered in place. When looking for a new laptop, is that something I should be concerned about?
What Acoustic Bass is in the Background, I like it ?
Would prefer there weren’t no spoilers at the start. Barring that great video.
3:00 that'll be a wraith prism :)
brother, do you think fixing bent pins on a cpu socket feasible/ pratical? AM5 desktop mobo. can you point me on a good starting points/ tutorials?
It's not that I would like more desktops exactly.. I'd just like less Macbooks lol.. I swear if I hear the term 'PPBUS3VHOT' one more time I'm gonna lose it
i get quite a few computers in for repair that people have tried to build themselfs ... either they watched a youtube video .. or they have got a friend who built one computer help them all kinds of errors .. everthing from cable not plugged in to the motherboard not supporting the cpu .. I had one guy bring me a ryzen cpu wanting me to put it in his acer with a amd A9 apu in it .. I told him i don't think that will work . he seemed shocked because he read on the internet it would because all am4 systems are the same... his was a fm2 moththerboard . another one a kid built himself but needed help with the cables .. I told him how to do it .. he wanted me to do it .. the longer I looked at it the worse it got . everything was wrong .. and the pins on the motherboard were bent .
I think the first PC is still worth posting. I'm sure many people would get value out of that. Don't think of each individual video providing value think of it as the cumulation of knowledge gained from all the small videos put together. I'm not against seeing several 5-10 minute dislodged RAM videos. Its still interesting.
Ey, the Aneng AN800x club! I've got two of those little "muldy meeders" - an AN8008, and an AN8009 with k-type temperature function. They're so small and cute, with a really nice big digits display. Also, they seem to be precise enough - precise enough for the girls i go out with.
Yea I've had this one a while, but it stopped working. I gave it a service (touched up some rough solder joins in it, bent the banana jacks a bit, etc) and it came good. However, the curved front glass is a nightmare to get on camera, so I need to mod it a bit more before I use it again. I love the compact size but big display on it though 👌
that first rig, the board doesn't even have diagnostic LEDs, forget a code readout...fairly compact and respectable configuration otherwise.
Please help my pc won't turn on when cpu 8pins connector plugged in to motherboard, when i unplugged it pc trun on perfectly but without cpu.
Also i noted when i plugged pcie to gpu with unplugged 8pin connector the fan's speed very high (max)
What is the reason behind this problem
(Mosfet?!)
Setup
Ryzen 5 2600
corsair 16 gb ram rgb
Psu Cooler master 700W
Gigabyte b450 eorus elite v1
I wonder why this motherboard won't let up.
The flame that just came out of it was probably a clue.
out of topic: i have this problem that my pc won't let me go to bios just directly boot to windows. any possible fix?
The first pc was a pleasant fix.
I had a Gigabyte B85 board die on me at my school in what I now reckon is probably the same fashion. Among the many reasons why I've always had a much lower opinion of Gigabyte vs Asus. Maybe their high end stuff is good, but their entry level stuff has always just felt barely good enough to pass muster.
It's the ram, it's always the bloody ram.
I'm not familiar with the phrase "Darn..ing hell!" 🤣
The first step with the second PC should have been manually shorting the Power switch pins. Sometimes it is so simple that the power switch died.
This is why I measured the voltage at the power button pins. If there'd been steady voltage there, my next move would have been to check that the voltage dipped when pressing the power button. But instead we saw the voltage switching on and off, which revealed a bigger problem.
I watched this twice!
I've seen this 2x very recently with 1x Intel and 1x AMD.
Amd fix - put GPU into a known working board with 2x GPU slots. Start with 16x slot, you will not get display ...
Then switch to 8x slot and you should get display.
Only theory I can apply is some kind of "training" between 16x and 8x.
First 16x slot on a mobo connects directly to the CPU, all others (unless the board is fancy and has lane switches) go through the chipset. So when you plug into the 8x slot, the card is taking a completely different route back to the CPU.
@@Adamant_IT Ah, that makes perfect sense, thank you for the reminder! My test board, the one with the 16x and 8x slots is a Msi B450 Mortar Max, which as you correctly stared has 1x 16x slot going straight to the CPU and and other PcIE lanes go to the PCH. Thank you Adam! Now I feel silly for not putting 1 and 1 together 🤣 Been in I.T professionally for close to 20y, so I should've had that realisation 🤣
Worry not! I can always send you some dead Slot 1 and Socket 370 mainboards for troubleshooting. :P
Don't underestimate the value of those "simple fixes" to people new to PC's and repair. It's easy to just assume because the PC used to work fine, something "simple" isn't the problem. Always check everything is seated and plugged correctly.
Made my bosses 386 cpu explode once. Not sure how. Just used it. When he went to use, there was explosion with black dust coming out. Black silica all over inside. The cpu literally exploded. 5V shorted to mains in power supply failure? Dunno.
Gigabyte H81 actually can overclock a 4690K, so it was a better board when it was good than compare to an asus h81m-k that board fully locked. So RIP Gigabyte!
I think we all have had the memory module not plugged in experience.
Graham: checks for shorts before powering to avoid explosions
Everyone watching this video:
>:(
pls share how to reset bios of asus desktop :D
How much did you charge the first customer?
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awsome
It looks like Gigabyte's "ultra durable" motherboard wasn't so durable lol
I've fixed more macbooks than anything else over the last 20 years so I can only assume they go wrong more than anything else. I very rarely got a desktop but maybe that's because people with desktops tend to fix the PC themselves and people who buy Apple know very little about computers. Just a thought, because there has to be a reason I fixed apple laptops at a rate of about 8-1 although it could be poor design. Macbooks appear to have had more than their fair share of design flaws over the years.
4th Gen Intel is an automatic replace, IMO. So is 5th, 6th, and 7th, unless you're running some flavor of Linux.
"Of course, that's just my opinion. I could be wrong." - Dennis Miller
Yeah all the ones that don't officially support windows 11 should be dirt cheap though
Problem is 1st customer its hard to charge any money
2nd 1 to be honest on the value of the board not working going to far in
considering an mitx mb for that second one would probably be more than £100 to replace
nice
yes yes yes Desktop
1st pc memory in wrong socket should be in A2 not B2