closest I could fine was the 7NF-RZ, so I think that;ll be close enough.
http://america.giga-byte.com/MotherB...l_7nf-rz_e.pdf
check page 8 on that, by the sounds of it, if the switch is on, it should see your cpu fine, if its set to off...it'll explain your problem
its a switch right above your agp slot, right where it says "cpu fan"