I've got a Dell SC420, and the CPU fan is a huge 92mm monster with 4 wires plugged into the motherboard. The third wire is an RPM sensor and the fourth seems to be PWM sucker. If the mobo senses the ...
I'm stuck. Just putting together a new system and all I have are 3 wire fans for the heatsink. The CPU fan connection on the motherboard is a 4 pin thingy.<br>I can plug in the 3 pin connector but the ...