[SOLVED] Motherboard lights up, but doesnt to turn on

May 9, 2021
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I have had this pc for several months now without any problem. Today however it decided to randomly not boot up. All i see when i turn on the PSU is the light from the motherboard that indicates power is running through.
Sometimes the PSU would make a "click" noise (as it did when i turned it off normally), sometimes it would not make any sound at all
GZ08XLE.jpg

As you can see, the motherboard is lighting up, but it still wont turn on.
Right now i suspect that it might be a problem with the PSU, but it is not a cheap one, it is made by corsair, it should last more than a few months??

Things i have already tried:

I have already tried swapping the power and reset buttons.
I have tried to turn it on by using a screwdriver on the powerbutton pins.
I have plugged out everything except the power cord (outside of the pc).
I have tried taking out the GPU and ram as well.
I have tried reseating the 24pin motherboard connector.
I have tried updating to the most recent bios with bios flashback.

PC specs:

Motherboard: Asus ROG Strix B550-f
PSU: Corsair RM850
CPU: AMD Ryzen 5600x
GPU: Asus TUF RTX 3080 OC
 
Hmm tested with a different PSU i had lying around and it worked. Guess i have to get a new one :/
I dont remember doing anything harmfull to it yesterday? What could have gone wrong?