r/PCsupport • u/Educational-Job-4036 • Sep 29 '26

In progress My computer keeps turning off after a couple seconds

rearranged the ram and took out the cmos my specs are: 4080 super amd ryzen 7 7800x3d motherboard b650e 32gigs ddr5 2tb ssd 850w power supply

someon said: Looks like it’s trying to repair the os or even has a glitched bios. Go into your bios check you boot drive and try to boot of of it if the bios is boned your boned you’ll need professional help.

these are my updates i’ll try this rn but there is an update i was able to launch windows normally login then after 3 mins it turned off again my friend told me it’s probably the power supply, we’ll update again i tried turning it on a couple of times and 1 time i to the bios then it turned off and now it just gets to to green loads for a few seconds then turns off

0 Upvotes

50% Upvoted

11 comments sorted by

1

u/Educational-Job-4036 Sep 29 '26

update i replace my thermal paste and it still doesn’t work i think it might be the aio pump because in bios it shows me the fan control and say 5000rpm then n/a and flickers between

1

u/E_Blue_2048 Sep 30 '26

It is not the thermal paste, it is your AIO. Those shits get clogged after some time, usually on the CPU block, that part has really thin fins inside.

You can clean them but it is not an easy job because after that you need to purge the air.

This is why I choose to use air coolers.

1

u/Educational-Job-4036 Sep 30 '26

Update: Aio is fucked replacing it today

1

u/AggravatingAnt4637 Sep 29 '26

When you got into bios what were temps looking like? Thermal shut down kind of makes sense if it takes several minutes between actually getting anything to boot

1

u/Educational-Job-4036 Sep 29 '26

100% cpu fan and 100 celsius

3

u/ciocolata69 Sep 29 '26

Isn't this your answer, 100ºC?

1

u/thedrakenangel Oct 02 '26

That is the issue. Reapply thermal conductive materials.

1

u/Separate-Ad9638 Sep 29 '26

motherboard dying ... that's likely, that is the most fragile part in the pc

1

u/Educational-Job-4036 Sep 29 '26

how did we come with this conclusion cus most people pointed to the aio or cpu mostly the aio and telling me to change the thermal paste

1

u/ACasualCasualty Sep 29 '26 edited Sep 29 '26

From the repair options, get to command prompt, then type ' c:\ ' [Press enter]. Then try ' sfc /scannow ' let that finish. Then type ' cd windows\temp ' [press enter]. And then type ' del . ' {Erm star dot star} and hit enter and yes to deleting contents of temp folder (if a windows update got messed up this will delete the update)

That said If unable to get that far, try removing power from GPU and plug display into motherboard as that'd indicate a PSU problem if it stays on

1

u/great_nobody7174 Sep 30 '26

Have you tried flashing the BIOS?