Hi! I didn't like the stock fan/heat-sink parts that came with my CPU so I bought an AM CPU fan and heatsink. It's for an i7-2600k cpu, being mounted on an AsusP8Z68 mobo. The fan has a separate controller that I would like to connect to the mobo via the "4pin" connector. Does anyone know how this should be wired?
The fan has a 3pin connector that can go to the 4 pin, using only the three pins, and a 2pin connector going to it's own separate dial controller of slow, medium, and fast.
Can I just connect one of the wires to the vacant pwm on the 4pin mobo? I'd prefer to not control the fan manually. Often when I'm in the middle of a game I forget, or if I leave to get bites or nature calls I don't want to come back to a fried whatever.
You cannot connect the fan controller control leads to the PWM pin on the fan header. If you do not want to control the fan manually, enable fan speed control in your BIOS and plug the 3-pin fan directly into the 4-pin fan header. It will fit and work properly, although you might have to check "3-pin mode" or adjust a jumper to tell the motherboard you are using a 3-pin non-PWM fan instead of a 4-pin PWM fan unless you want the 3-pin fan to run at full speed all of the time. Or, you could just get a 4-pin PWM fan you like, plug it straight into the fan header, and forget the whole controller nonsense.