Computer crashing. Can't find the issue. Any expert to help please?

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Jonathan_56

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I've posted here a while ago about this same computer. Here is the link: http://www.tomshardware.com/answers/id-3015598/computer-crashing-randomly-works-fine-stress-test.html

I had re-do the wire management, took out a fan that seemed faulty and cleaned everything.The pc worked fine for 8 months after that. But now the problem is back and it does the same thing than before.

Pc will randomly crash. It refuses to boot after it has crashed. When i try to boot it, i can hear a clicking noise from the PSU as if it was trying to boot but nothing spin. It will do that in loop until i shut down the PSU. I also noticed that a red LED opens on the motherboard saying ''CPU LED''. My pc was in sleep mode this morning. When i tried to open it, it wouldn't, i would hear the PSU doing a clicking noise on loop but strangely the keyboard seemed to be working. All light were opens on it. I had to shut down the PSU for the keyboard lights to go off.

When this occurs, i would turn off the PSU, move the ram, unplug and replug the fan in different place and try to boot it again. Sometimes it works, sometimes it doesn't and i have to do it again. A wire on the corsair h100 was in bad shape and i suspected it might be the issue so i changed it for a heatsink but with no luck.

I suspected the PSU to be the issue so i took off the graphic card to use less power. No luck again.

The power button is half broken so i unplugged the front panel completely. I also unplugged everything i could like USB port and stuff like that.

I unfortunately know no one using a 2011 socket CPU or motherboard so i can't test it.

Here are the spec:

1050 Watt corsair PSU
2x4gb 1866 ram Viper
Kingston 120gb SSD hyperX
Msi 570 gtx
Corsair 800d computer case
Intel i7-3930k
Motherboard is asus p9x79

Any ideas guys? I've been trying to get a video of the computer trying to boot but it's too dark and we can't see anything.
 
Solution
amtseung

I can't get over how fishy this sounds. It's happened... three times now? Bad connections, bad wires, could even be within the power supply. The best test at this point is to RMA/replace that power supply with another one and see if the problem goes away.

The only other potential issue here is thermals. Whether it's the CPU, GPU, motherboard, or power supply overheating, they can cause sudden crashes too, especially VRM's.

The biggest clue we have is your power supply safety relay clicking earlier, indicating a clear short, and something not being to spec. For all we know based on the information we currently have, your house's internal...
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badboyrog2

badboyrog2

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which windows version?
did you installed a ram in B1 and the other in D1 slot?
did you clear the cmos?
remove cmos battery and put jumper at clear cmos pins for 5 min ...and put them back like it was before (battery and jumper)

let me know

your psu good?

do you have and aftermarket cpu cooler or stock one?

your gpu getting old and weak compare to new gpu card on the market
 
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amtseung

amtseung

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Usually, a click from the power supply is the short-circuit (over-voltage, or over-current, or over-something) protection relay clicking to life, telling you something has either failed or shorted. I haven't worked with Corsair power supplies much, so I hope someone can confirm or correct me here.

I would do the usual process of elimination for troubleshooting, unplugging stuff one by one from the power supply until the source of the short or failure is found.
 
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Jonathan_56

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It's running windows 10. I did flash the bios and cleared it too. I try every different ram slot and position, since it has 8 slots. It's coolermaster cpu cooler. I tried a different GPU but same issue.
 
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Jonathan_56

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Mar 28, 2016
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I tried booting with CPU, Motherboard and SSD only but with no luck. To start the computer again, i would unplug every fan and ram and move them. With luck, it will boot again. Sound like a faulty PSU to you? I suspected a short circuit too. But it was crashing, i re-did all wire management and it worked for 6 months. You would still suspect a short circuit?
 
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amtseung

amtseung

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If redoing all your cable management fixed a previous problem, I would suspect that to continue to be the source of the problem, since you didn't say you went and got all new cables. If it's caused problems before, why wouldn't it cause problems again? In fact, you may want to closely inspect all the wires and cables in your system to make sure you haven't nicked or crushed one, exposing the inner core and shorting against things inside your case. Also, if possible, check the connections at the power supply, or even inside (it's a modular power supply, right?) and see if something isn't wrong on either end of the connection. I've seen dust build up inside a power supply trigger short-circuit protections before, so keep your eye out for anything and everything.
 
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Jonathan_56

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I am going to try all that tomorrow since it's getting dark right now. Thanks very much for your time. I will keep you updated about this. It is a modular PSU.
 
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badboyrog2

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do you have the latest bios version?
Version 4701
Description P9X79 BIOS 4701
Improve system stability.
File Size 4.62 MBytesupdate 2014/06/23
https://www.asus.com/us/Motherboards/P9X79/HelpDesk_Download/
and all drivers updated since you use windows 10?

did you tried different pci-e power connectors for your gpu card?

 
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Jonathan_56

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I do have the lastest bios. Drivers should be up to date, but would that really prevent the computer from booting? I did try different pci-e cable and 2 differents GPU.
 
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badboyrog2

badboyrog2

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''I do have the lastest bios. Drivers should be up to date, but would that really prevent the computer from booting?''

not really ..but sometimes drivers conflict can do it ..anyway its better to have everythings up to date before going further

did you check for cpu bent pins or bad cpu cooler installation?
 
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Jonathan_56

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Mar 28, 2016
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I did check for cpu cooler. I did change the cooler too but same issue. I did not check for cpu bent pins, because the computer ran fine for about 2 years and started going wrong when i moved it to my place, so i didn't suspect this is a possibility? It kept bugging yesterday. I moved all wire on the case. It worked fine for an entire day but crashed again.
 
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amtseung

amtseung

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I can't get over how fishy this sounds. It's happened... three times now? Bad connections, bad wires, could even be within the power supply. The best test at this point is to RMA/replace that power supply with another one and see if the problem goes away.

The only other potential issue here is thermals. Whether it's the CPU, GPU, motherboard, or power supply overheating, they can cause sudden crashes too, especially VRM's.

The biggest clue we have is your power supply safety relay clicking earlier, indicating a clear short, and something not being to spec. For all we know based on the information we currently have, your house's internal wiring could be at fault. And that is not something anyone ever wants to deal with.
 
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