Trying to do some research on this, is it generally ok to run 2x 120mm fans off one 4 pin motherboard connector? Some say yes, it's fine. Some say you shouldn't because if you draw too many amps it's not possible to fix. The 4th pin allows me to control fan speed profiles in the bios so I can run it cool and quiet which is a huge bonus. If this would be too much current then 12v from the psu is an option - can I tap into the 4 unused pins in the cpu power cable? Could I add a resistor to slow the fans? ---------------- Waffle, don't read: The lady is having some non-specific random shut downs... bit hard to diagnose the machine because I've been unable to replicate said issue. I'm assuming it is an overheating problem because it happens when gaming. Basically I'm just looking for an elegant solution to this. Adding some extra fans in the right places seems to be my best bet. The gpu vents hot air into the case (and onto another heatsink, possibly northbridge) so placing a fan at the bottom of the case blowing air up towards the gpu might be my best bet. The cpu heatsink seems to be walled off on one side by unnecessarily large RAM modules and on the other side by the IO connectors, so either an exhaust fan next to it or another intake fan above it might provide some additional cooling.