Dead on day 1?

[Barnash]

Any idea how a simple restart could cause this? Or what it's related to?

 

It's a new build, assembled today, booted, installed windows and some programs, updated graphic card drivers

 

First restart through windows, system shut down but mobo and case lights keep being on, waited a bit - nothing, tried to hold power button - nothing

 

Switched off psu and unplugged, lights turned off

 

Plugged back in and switched on psu, press power button, mobo light blinks once and nothing

 

Unplugged every peripheral, only psu power connected - nothing

 

Mobo light blinks once every time unplug and plug psu power cable

 

Tried isolating by gradually unplugging cpu, ram, gpu, fans, mobo battery, cmos, switching case power and reset cables, usb, audio - nothing

 

 

 

[Fatih19]

What's your PC specification?

[Barnash]

On 9/6/2020 at 12:29 PM, Fatih19 said:

What's your PC specification?

3900x

BeQuiet dark rock 4 pro

Gigabyte x570 aorus elite wifi

G.skill ripjaws 16gb 3600mhz

Gigabyte 2700 super gaming oc

1tb Western digital nvme 

Seasonic focus 750w platinum

Fractal Design meshify c

 

[Zenith_X1]

I had a similar issue to this with a dead PSU.  Sometimes I would turn on the computer and I would cycle it 5 to 10 times to get it to start.  Replaced the PSU and no issues since.  Start with a different PSU and go from there.  Also if you have a modular PSU, ensure that your cables are properly seated to deliver power.

 

If a second PSU test is causing you issues, then you're looking at a motherboard issue or a short.  Sometimes when the motherboard is screwed into the case too tightly it can induce a current in the metal of the case which shorts out the board.  This was an issue I ran into back in 2009.  Loosening the screws and ensuring there was no direct contact between the silicon of the motherboard and my PC case fixed it.