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KFIXIT
United States
เข้าร่วมเมื่อ 23 ม.ค. 2020
Fixing all things electric, electronic, and electromechanical along with whatever else that needs fixin' around the house.
CPU Mining Monero $50 Dell Server (Part 3)
CPU Mining for Monero using a $50 Dell Server with Intel Xeon processors.
มุมมอง: 421
วีดีโอ
Replacing custom server BIOS with Dell BIOS - Poweredge Server
มุมมอง 8009 ชั่วโมงที่ผ่านมา
Forcing a Dell BIOS update on a Poweredge Server that has a customized or 3rd party BIOS.
CPU Mining Monero - $50 Dell Server (Part 2) - 1 Week Later - June 15, 2024
มุมมอง 2.8K21 วันที่ผ่านมา
One week of Mining Monero on an old Dell Server I bought online for $50. Did it pay off? Watch and see.
CPU Mining Monero - $50 Dell Server (Part 1) - June 8, 2024
มุมมอง 29628 วันที่ผ่านมา
I bought a Dell Poweredge R515 online for $50. Installed Ubuntu 24.02 and XMRig to CPU mine for Monero. Pooling at xmrpool.eu. I will post again in a week and see if I made any money or not. Sorry about the sound.
Hayward Aqua Rite Chlorinator says HOT !!! FIX !!! SAVE $800 +
มุมมอง 16Kปีที่แล้ว
Save hundreds of dollars by using this work-a-round to fix a salt system chlorinator that says "HOT" on the display screen. Hope this helps. Leave comments below if it does or does not work for you. NOTE: IF YOU ARE FOLLOW ALONG WITH THIS VIEDEO, YOU ARE DOING SO AT YOUR OWN RISK. IF YOU ARE NOT COMFORTABLE WITH ELECTRONIC EQUIPMENT, DO NOT ATTEMPT.
I have never turned a profit mining other when I tried some of it 12 years ago or something like that. I wish I would have saved the BTC but thought it was a waste of time. I really don't think there is much money to be made unless you can get in on the ground floor of a coin and for every coin that comes out there are 20,000 of them that fail.
Nice video. I remember when people were mining XMR on Vega 64s. Fun times! Do you plan on getting another rig to replace this one?
I did the clever surgical modification and it worked. However, my salt reads funny. Started out initially at 2700. Planned to add salt after I put up my tools and noticed it said 3500 (without adding salt). Checked again today and now it reads 4400. Hmmm. 🤔
always a risk updating bios ... especially if it bricks and you dont have the skills to program a prgrammer... long live zif :D
"OOBANTOO" doesn't exist.
What's that wallpaper animal?
exec sudo -i systemctl set-default graphical exec systemctl isolate graphical Who needs reboot? 🙃
@@majorgnu Nice. Thanks.
Oh my thank YOU so very much for this!!! My husband followed your instructions and worked like a charm! We appreciate you!! Have a blessed day!
Please tell the profite or loss in the next upcoming videos
C’mon man.. you wasting your time money and power… Just buy the coin if you want it that bad
The key to Monero mining is cache per core, you ill not do well with intel Xeon or any intel. Ryzen 3900, 5900 are the best for the price.
It's pointless mining on those old servers to be honest your jus wasting your time and your electricity. Sell them all and buy one modern ryzen system and get 10-20kh i.e 10x or 20x the hashes for probably less watts.
Does it ruin the computer? Like how much will it shorten the life of my computer if I have it run all the time?
You just saved us more than 800$, I can't thank you enough! We'd like to send you a small gift from Montreal if it's ok with you
Question. When you had the "HOT" display on your screen could you push the diagnostic button and read the other settings or was it locked on HOT the entire time until you made the bypass?
I could push button and read other settings.
@@kfixit Ok thanks. Worked liked a charm also. The reason I asked the question is because my display wouldn't show the temperature reading just HOT but I found a fix to remove display board and to polish the long contact pins. After reinstalling the display board the display cycled properly also showing a very high temperature reading of 209 F. I have the model r1.40 revision circuit board which actually has ten total multi color of wires going to the salt cell but the same red an the blue color wires went to the temperature sensor. I did find information stating pin (6) is the red and pin (10) is the blue if anyone needs to ohm the temperature sensor before cutting the wires. I then proceeded to install the 10k ohm potentiometer Thanks again.
I wish you were my neighbor. Thank you, sir.
am4 and ryzen 3600 , two sticks of ddr4 - thats your entry point for cpu mining. IMO. older tech just isnt worth it. you get 7khash on ryzen 3600. and then you have an upgrade path to ryzen 5900 if you want
I will start searching for those to try.
Love the video!! Please keep posting more!
crypto mining on a cpu is never a good idea, let alone on a $50 machine. funny to see this being tried though
It's a good idea if you have idle compute and cheap electricity (for example mining with your own solar).
Monero is designed for CPUs, my $275 computers are over ten times as fast though 😂
EPYC is the Key 😉
Those are nice processors.
@@kfixitcertainly not nice to your wallet
Hi, thanks for this really interesting video! How much power does this server need?
The power rating for the dual power supplies is 720W each. However, I only have one hard drive and am nowhere drawing that much power. The power supplies are also 120VAC. So, I am not really sure but I would estimate about 150-250W continuous for my configuration. Just a guess.
Probably cost more in electricity
Absolutely did.
@@kfixit Profitability can be greatly improved by mining to the decentralized p2pool and taking advantage of the xmrvsbeast hashrate raffle.
Love these down-to-earth experiments, very informative video!
Thanks. Hope it helps someone else also.
hahaha useless
LOL. Agree!
Tried something similar and it wasn't worth it for me either.
Had to give it a try though.
@@kfixit I do wonder what the minimum hashrate would be in order to pull down something substantial. I know that at least one of the miner apps does support CUDA so a graphics card might be worth trying.
Use dedicated Nodes (clustering) with ASIC or FPGA cards mate more efficient and power hungry
Yessir, consider a small one for a future project!
Hmmm. Worth trying. Thanks!
Monero doesn't have ASICs. CPU only.
Yeah not for Monero
Worked like a charm. Circuit board size is easier to place inside unit than the larger one pictured here.
Worked great. Thx you saved me money. 👍
Question. When you had the "HOT" display on your screen could you push the diagnostic button and read the other settings or was it locked on HOT the entire time until you made the bypass?
I follow the instructions and it worked perfectly ... until the seam of the salt unit started leaking - totally unrelated to this fix. Great work!!!
HEY!!!! All you fellow challenge any tasks people out there, know that there's a dwindling few of us left. As to this gentleman, taking his time to help people like me or you, I believe there's a special place in heaven. I can't tell you how thankful I am - you are a great person (I don't care what your wife's been saying down at the speakeasy - just kidding). Thanks. Really
10k ohm works, no need for a pot
Thanks for the thermistor info. I cut my red and blue wires and discovered my CIRCCUPOOL controller defaulted to 82 degrees and all generation is back to normal. Temp was indicting 194 before I isolated the controller from the thermistor.
I was getting the HOT message on mine and noticed it went away when I reseated the connector at the unit. Recommend using contact cleaner on the connector and see if reseating the connector fixes the issue. If you have an multimeter, measure the resistance at the connector (you can find the pinout of the molex connector online). If it's in the 10K ohm region, don't cut your cable. Good Luck!
Could you sent me a link to that pinout for the molex connector please?
Thank you!
THANK YOU - just applied this bypass worked like a charm....
Question. When you had the "HOT" display on your screen could you push the diagnostic button and read the other settings or was it locked on HOT the entire time until you made the bypass?
@@pjdn sorry I don’t remember
@@WilliamBarton-ss5sq Okay thanks. I figured it.
Worked like a charm!
Question. When you had the "HOT" display on your screen could you push the diagnostic button and read the other settings or was it locked on HOT the entire time until you made the bypass?
I have a Blue Works system and it worked great. Same wire colors too. THANK YOU so much for the video. Not sure how you figured this out but smarter than me.
Unless you have to adjust it Maybe just put in a 10k ohm resistor in
What would be the failure mode if the temp sensor is good but the plates are bad? My temp sensor ohms out at 13k ohms at 70 degrees so im assuming its not the temp sensor. Any way to test the plates? My salt system comes on when I powder it up but quits making bubbles after about 5 minutes.
First it said cold, and after unplugging and plugging it, again it shows hot.
I like clever people. Thx !
How do you protect the stuff from getting wet?
How do you waterproof this repair? I have it electrical tape wrapped, but I don't know if that is enough. If the potentiometer gets wet, will that cause an issue?
I bought an outdoor wire splicing box off Amazon for $11. Comes in today and should do the trick.
If you are correct that the thermistor in these cells increases in resistance as the temperature increases (PTC type instead of NTC type), then you can use something called a gel filled inline telecom splice. You won't have to cut the cell's wires at all or use wire nuts (or equivalent). A telecom splice has a slot along one side that you use to wrap around the existing wire (without cutting it), and a hole you use to insert the new wire (that you want to go to the potentiometer). You then use pliers to press the cap down which causes metal fingers inside the splice to pierce both wires insulation without cutting the wires, which makes a splice connection like a TEE. The gel in it squishes around the wires and protects the splice from water which can interfere with the signal. You do that with both the salt cell wires you want to splice into. The potentiometer will then be wired in parallel to the thermistor which will lower the overall resistance of the circuit according to the amount you turn the potentiometer. Using splices this way will only work if you are correct that the thermistor is a PTC type (positive temperature coefficient) which increases resistance as the temperature increases, and if the thermistor is not internally shorted to ground. You can then mount the potentiometer in a weather safe box to keep water (especially salt water) away from the potentiometer and hte signal wires, which would affect the temperature setting you are going for. HOWEVER, If the thermistor is a NTC type (negative temperature coefficient) then using a splice in this way will not work, because for those thermistors a maximum temperature will result in a very low resistance or a short circuit. I do wonder, however, whether the temperature circuit is only for optimizing power usage or if it is for fire safety. i.e. The control board will change the plate energizing power depending on the water temperature. Enough power to break the chloring ions from the sodium chloride. If the circuit is actually capable of applying way too much power, and the water chemistry is basic, the cell might also become a hydrogen generator which could be dangerous. So, when you're lying to the control board, what is the actual consequence or risk if the actual water temperature is different from what the board thinks is the water temperature? I'm assuming that most people will not go out and adjust the potentiometer every time it changed by 10 degrees or more to make sure it stays in a safe range.
Temperature is part of the calculation of salinity. The system uses salinity to warn the user of low or high salinity and for self-protection (higher salinity equals more amperage; lower salinity and the cell produces more sodium hydroxide which can damage the plates). Inaccurate temp readings is problem with lots of salt cells and is why the resolution tolerance is set at around +/- 500ppm. The accuracy of the thermistor is also a thing. Colder water tends to produce lower salinity readings due to accuracy range of the thermistor being used. Additionally, the system uses conductivity to produce a salinity reading. Conductivity of saltwater decreases as temperature decreases. This is why temperature is a thing with SWCGs.
Thank you for the video. This fixed my issue also. Saved me $1,000 on a new cell.
Thanks for the info...I tried the potentiometer trick & it seemed to work as I could turn control on the pot & it would change temp on control panel..And when I tested my old cell in a large bucket of water it created a generous 'cloud' of chlorine, but when I reinstalled salt cell into pool plumbing, I get absolutely ZERO chlorine at the pool return jets..No cloud, no bubbles, & no chlorine detected on test strips!! what am I doing wrong???
Great video! Have you figured out how to Fix the T15 cell when it does not give the correct salt reading? Mine says check salt - I tried a aftermarket cell - it generates salt now but does not read correct salt level, returning it & ordering another Hayward next spring. Seems they last just over 3 years.
Great video, I had this same problem, and this was great help and it solved my problem.
Thank you good sir. Taught me something and saved me money. Greatly appreciated.
Thank you good sir. Taught me something and saved me money. Greatly appreciated.