CPU Fan turns full speed needing reboot to stop...

Soldato
Joined
19 Dec 2003
Posts
3,105
Location
UK
Hey folks;

Spec in sig;

Just wondered;

Sometimes my PC boots up, and the CPU fan spins to full, then slows to normal/auto speeds... Which is correct.
However,

Sometimes the fan spins to full, and stays on full speed! (fairly loud!)

This is from a cold boot, as well as a restart. To stop it, I have to reset the pc again.


In the BIOS under CPU FAN CONTROL I have the options


AUTO
Intel QST
Legacy (or something)
OFF



It's on AUTO at the moment.

Is it because the CPU fan I have is 3 pin, yet the MOBO connector is 4 pin?
 
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