Just thought you should know. The ENERMAX adjustable fan series cannot be plugged into the motherboard fan headers or the system won't boot. It took me six hours to figure this out. The Enermax adjustable fans have some kind of issue with their RPM detect and it screws things up when they are plugged into the mainboard. I'm not sure if this is only a problem with this motherboard or if it is a flaw with the fan that will affect all motherboards.