mercury14
Pragmatic Metaphysician
- Joined
- Jul 8, 2009
- Posts
- 22,158
but not instantly.
My desktop is shutting off quickly also. My fan's working and I could run MB and MEM diags without it overheating and shutting off. Using Speedfan and the BIOS to monitor, I now see it must be that the chip that senses the temperture must be bad. It wound jump from 40c to 103c in an instant, which Windows detects and shuts it off.
Looking for an old motherboard now.
obtw, fans and heatsinks are both needed.
In testing, you can do without a fan a lot longer than a heatsink.
Without a heatsink, it will overheat in seconds or less.
Can you confirm that the CPU heat sink fan is functional?
I've seen cases where there's a BIOS corruption causing the CPU to malfunction and/or the board to cool improperly. If you think you can update your BIOS without a shutdown then give it a try. Do NOT try this if you believe your computer will crash during the update process.
Also a borked power supply can send the wrong voltage to your bits, causing overheats.
