Question HELP! Dead PC

Sep 8, 2019
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Hi.

So my PC of 5 years, which is a custom build (not by me, but a third party company) has decided to die.

Most issues I have been able to self-fix (albeit after a few hours on youtube or general googling).

My PC shows no signs of life after pressing the power button.

Prior to this issue, I noticed my fans acting super fast and loud. Then a few days ago it totally froze, so I restarted the machine and it was working as usual, but with the fans going crazy still. Then hours later, it died for good.

So after looking online, I concluded it could my PSU, I disconnected all components except the CPU, MOBO, PSU and Fans. Only the fans showed any signs of life, but not the PSU fan. So I was still sure the PSU was the issue.

Then on a micro-ATX machine, I tested the PSU and everything booted fine. So although the PSU fan didn't spin, I feel the PSU is okay (it could be the feature that means it does not spin unless it needs to) however it could still be the PSU as the micro-atx machine is much lower power compared to my main machine.

Now I am pretty sure the issue is CPU or Mobo, but I feel it could still be the PSU as when I plugged in the PSU from the micro-atx machine, it seems to give some life to the mobo, but still no POST beep.

Does anyone with more experience have any insight?

Much appreciated
 
Sep 8, 2019
4
0
10
Intel i7 CPU
ASUS x99 Deluxe v1 motherboard
G-skill 32gb DDR4
Corsair RM750 PSU
MSI NVidia GTX 760
Samsung 240gb SSD Boot
Samsung 120gb SSD Game driver
2x WD Black 2tb HDD's in raid1

After the freeze, I checked the temps on speccy and I was getting around 20-25c on the CPU, which seemed good to me, but maybe some has a better idea?

PC is for gaming, photo-editing and some 3d software tasks (hence the OP ram)
 
Sep 8, 2019
4
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10
After testing further today, the issue seems to be with the 8 pin CPU connector. When I do not connect the CPU power, everything attached to the power supply will work, but when the CPU connector is attached, nothing works.

Any idea?