How do I connect the front-panel headers to the MB? Is GND on header == -ve on motherboard header? I have to connect power switch, reset switch, HDD LED.
Also how do I connect the HAF 912 front fan to the MB? It has a 2-pin connector but my motherboard only supports 3-pin connections. There is an intermediate connection of 4 pins between the fan and the 2-pin connector.
go to http://www.asrock.com/mb/manual.asp?Model=Z68%20Extreme3%20Gen3
and download the manual if you do not have it. page 40 shows the pin connections. usually the connections for the power and reset have a colored wire and white. the colored would be the (+) positive and the white being the (-) ground.
to connect a 2 pin fan to a three or four pin connection, connect pin #1 and #2; the ground and the power; ignoring the speed and sensor. the disadvantage will be the fan will run @ 100% w/o the throttling. make sure you use the CPU FAN header for the CPU FAN!