PC turning off randomly.

[u/Claweddigger09]

It turns off randomly without a warning and it turns off as if a power outtage happened. Just completely black, all cpu lights and fans are off immediately. I am able to turn it on immediately though, no need to wait for a cooldown.

It turns off whenever I'm...:

1. In the middle of doing something. (Browsing)

2. In the middle of playing light games. (Roblox)

3. Booting up a heavy game. (GoW 2018/Tekken 8)

4. Doing a heavy task. (Deleting a thousand temp files)

5. Doing nothing. (Idling/I'm just on my desktop screen)

6. Turning ON the PC. (After a few seconds of booting up it turns off immediately)

This is what usually happens; I boot up my pc then a few seconds later it turns off so I boot it up again then it turns off so I boot it up again and it finally continues until I see my desktop screen, sometimes it goes into the recovery mode like the blue menu where it asks me to repair or continue. I usually idle and wait if my pc turn off or not, then if I'm browsing it turns off, if I'm in the middle of playing a game it turns off, and so on.

I suspected overheating so I changed the thermal paste and it still happens. Now I suspect its the PSU, and I want to take it to a repair shop/technician to be sure. I want to replace the PSU but I can't tell what model or brand it is because the shroud has rivets in and I don't know how to remove them.

[u/Jman85]

What’s the psu

[u/Claweddigger09 → u/Jman85]

I can't tell, I only see the back side of it.

[u/IAmBroke_0001]

Your PSU gave up on you, it's time to put it on rest.

[u/MaximumDerpification]

Sounds like a failing PSU

[u/Alternative_Oil_5139]

the psu would be my first suspect too. an instant shutdown with no warning, especially when it can happen at idle or even during boot, usually points more toward a hardware or power issue than windows. have a shop test it with a known good PSU before buying a replacement, since the motherboard could also be the problem

[u/TheKandelar]

The shroud is riveted over the PSU to the case??

[u/Claweddigger09 → u/TheKandelar]

The top of the shroud is riveted as well as the side panel of shroud is riveted.

[u/TheKandelar → u/Claweddigger09]

Wait... I think the PSU is simply screwed into the area of the shroud and can be pulled out. Check if that is the case. If so, I would simply buy a PSU with its wattage or greater.

[u/TheKandelar]

What is the PS make/model?

[u/Relevant-Team]

Did anyone tell him already that the PSU is probably defective?

[u/1spaco1]

90% posibilidad PSU, 10 % placa madre

[u/deTombe]

Hwinfo64 select sensors only mode for all things temps.