Quote Originally Posted by ninong View Post
i haven't used my motherboard 3-pin fan headers for the NB (the 2 ones near the NB) before and tried them last night..fan wont run. all the other 3-pin headers work though except for the 2 near the NB/CPU socket..could it be defective or do i need to change something in the bios?
If the headers don't work at all, then they are defective.

Personally, i never use any of the mobo headers for fans at all.
When your clocking, i've always found things better with no extra current draw from the mobo.