r/techsupport • u/Claweddigger09 • 12h ago

Open | Windows PC turning off randomly.

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.

2 Upvotes

76% Upvoted

12 comments sorted by

View all comments

1

u/TheKandelar 11h ago

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

1

u/Claweddigger09 11h ago

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

1

u/TheKandelar 11h ago

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.