Hi...I have 'passively' used this forum before and has helped me (and saved me!) many times. Now I have an unaddressed question and hope you guys can help me again. I recently built a system based on an Intel DG965WH and a C2Q Q6600. Everything works relatively fine, but I wonder why my outlet fan is running at full speed. It looks like this fan is not being speed-controlled (and sounds like being running at full speed). The BIOS "hardware control" utility reports 000 RPM. The fan is a Nidec TA350DC, its connector is a three-pin and has a black, a red and a yellow wire (for GND, +12V and Tach I presume). When I tested another fan on the same header, but this fan having a black, a yellow and a green wire on its connector, the motherboard seemed to control its speed correctly. May I be using the wrong kind of fan for my motherboard? Thanks in advance. E.