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[Solved] My PC suddenly won't turn on. Need help. (feddit.org)

submitted 1 week ago* (last edited 3 days ago) by [email protected] to c/[email protected]

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Hi there, hope this is the right place for something like this.

So today I used my computer like normal, everything was fine this morning.
Then after a brief walk I came home and it won't turn on since.
When I click the power button there is the normal click sound of the psu and nothing happens.
My keyboard lights up, the ethernet port lights up, but other than that - nothing. Already tried to remove the ram, the graphics card (just removing the power cable of it turns on its red light), removing just the cpu power cable does turn on the motherboars red status light, but non of the fans or other status leds light up.

My build is not new and other than the keyboard I did not change anything lately.
The build consists of:
Asus ROG Strix B550 A
Ryzen 5600x
32 GB Ram (Crucial ballistix)
Asus RTX 3060ti
Corsair RM650 PSU

I also unplugged the psu for a while. It makes a slight buzzy noise after powering the computer, but I do not know if this is normal.

Can anybody help me please?

Edit: Thank you all for helping, I installed a new psu and everything is working again! Thank you.

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[–] [email protected] 5 points 1 week ago (1 children)

You have to start in order of operation. Number 1 is the PSU itself. If you motherboard does nothing at all, no lights, no fan movement, no post boot anything then your PSU as expired.

After that you remove components and try again. Your case sounds like it's either a PSU or a CPU.

Get some thermal paste and remove the CPU and check for damage on it. Pins can actually melt off of it gets hot enough.

[–] [email protected] 2 points 6 days ago

Yeah, Maybe one of the rails on the PSU broke? Can something like this happen? Some parts of the motherboard seem to get some power but, I do not get any of the main status leds.
I will try to look at the cpu later, I try to get a second psu for testing...