Question Strange PC problems potentially involving dying psu?

magic_nut

Prominent
Dec 7, 2022
14
2
525
Hi.
I've been having some sporadic issues with my pc that I suspect involve a malfunctioning PSU.
Firstly the specs are (and the system was build in march 2020) with all new parts:
ryzen 3600x
32gb ddr4 3200
zotac 3060ti ( card was replaced from a 2060super that was causing issues before which I wrote long ago on this forum).
corsair CX 650m

The issues are the following:
First , I noticed that sometimes when my desk gets even a small nudge instantly the computer display goes off and it reboots (started happening about a month ago).
Whenever there is significant physical impact to the desk the computer is situated on it INSTANTLY turns off.
Another issue is that often times when I turn on the computer it turns on but there's no display and the keyboard lights don't turn on. ALSO the computer is unresponsive to either the power or reset switch when in that state and I have to manually turn it off.
A while back (about a year or so ago ) I had issues with seemingly a failing 2060 super GPU which I replaced with a 3060ti and INDEED those issues stopped upon replacing the card and there were no issues for about say 9 or so months (I can pretty much categorically confirm that old card was faulty now).

Also a few months ago I had one bsod related seemingly to power issues:

lMxrbLK.png

I've checked all the cables in my build and there doesn't seem to be any issues such as loose/tangled cables but just in case I've replugged my motherboard power cables and the gpu power to no avail at all. I must say since replacing my card the bulk of the issues was gone but I suspect this power supply may be on it's last legs so I already ordered a replacement :
https://www.msi.com/Power-Supply/MPG-A650GF (by the way opinions on this unit , do you recon it is a good choice?) .
But I also would like a second opinion if possible what might be causing my issues.
Also I want to point out I tried updating the board's bios to the latest version and that didn't help me much.
BY THE WAY , I just want to point out that with the new card I bought old issues that were registered in the reliability history involving "display driver stopped responding" are now completely gone and the card seems to run stable while gaming , had no crashes thus far.
 
I would like to point out another interesting thing:
One time I accidentally nudged my desk slightly and the PC turned off but typically it just simply turns "off" by the display going blank and fans still spinning and then it reboots, however THIS time it gave me a BSOD seemingly related to the ram:
dTc612x.png

However this was the only time I had this particular BSOD.
This was a ONE off issue and the ram was tested in memtest86 with no issues.
Could it be that a faulty PSU causes ram instability at times also?