AI7 F. Post Code?!

i just got this motherboard out of the classifieds, and i plugged it in, set everything up. and i keep getting F. as the post code. i cannot find anything about it.

Things i have tried.

Different memory
taking out memory
different grahpics cards
reset cmos

i can't think of anything else to do. its really ****ing me off, i know the cpu works too

http://fae.abit.com.tw/eng/faq/note/AWARD_and_uGuru_POST_code_v100.pdf

Dunno if that helps any, but it contains the post codes for your mobo

no go still need some help here!!!

got it, cpu fan header == kaput! if i use 3 to 4 pin connector it works great