Answer:
The CPU is probably overheating because you forgot to reattach its heatsink and fan assembly (or perhaps you didn't secure it properly or connect the fan itself to a power header). Turn off the PC and allow at least 15 minutes for the CPU to cool off. If you didn't attach the cooling unit, install it now (don't forget to wear a properly grounded antistatic wrist strap). If you did attach the cooling unit, recheck its installation and see if the metal portion of the heatsink is making solid contact with the processor surface. Also, make sure that the cooling fan's cable attaches to the correct connector on your motherboard. When you finish and restart your PC, see if the cooling fan now runs normally. If it doesn't, it may be necessary to replace the cooling unit outright.
We also should point out that tinkering with the CPU's frequency and voltage settings can create more heat, which might lead to CPU crashes and system failure. If you've changed these settings, return them to their original values or use CMOS (complementary metal-oxide semiconductor) Setup to restore the default frequency and voltage settings for your CPU. Save any changes and restart your PC. |