PC seems totally dead….

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2 Apr 2020
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22
Hello - I was wondering if anyone could help?

So I just rebuilt my water cooled system, turned it on and it remained on for a little while and then just suddenly turned off… when I reseat things sometimes it comes up cpu fan error (I just need to go into bios and disable cpu fan as I use a pump) I clicked F1 to go into the bios and the PC just turned off and never came back on

It now seems totally unresponsive, no lights, no attemp to boot, literally nothing. I have checked for leaks and there appears to be none.

I am swaying towards something wrong with PSU because if it was ram or something else I would see the lights on my mobo indicate RAM.. but I did also jump the PSU and it turned the pump on.

When I plug the 24 pin jumper on, the pump starts… when I unplug the 8 pin cpu a red light comes on l, showing power is making it the motherboard but no CPU, VGA or DRAM lights, just nothing, almost no attempt to boot

I have reseated cpu, checked for water on motherboard, seems dry - I am somewhat confident there has been no leaks but it could have happened without realising, totally lost with this one. I am using the power switch on the motherboard itself to rule out case buttons

Any ideas on what it could be / how I should troubleshoot this? I guess first try to rule out the power supply by testing another?


5800X3D
RTX 4090
32GB DDR4 3600mhz
1200W Corsair Platinum PSU

EKWB 4090 block
EK velocity cpu block
360mm XE + 2 X PE rads
EK distroplate
 
Last edited:
could you have over tightened the waterblock?
I tried reseating the CPU they are only thumb screws anyway, possibly overtightened but no tighter than I ever have done before.

A part of me is worried I spilled some coolant or water somewhere but it all seemed dry.

I guess I will just have to narrow it down :/
 
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