Hi, I was wondering if I could use a 3 pin Heatsink on a motherboard that has a 4-pin connection
If you;'re talking about the fan connector, most likely. The fan has only 2 wires, 5 volts and ground. If you can mate those 2 pins to 2 pins on the motherboard that will supply 5 volts and ground, it will woek. (If not, you could always cut the connector apart into 2 one-pin connectors and plug them onto the correct pins. Red is positive - the other one should be either white or black - that's ground or negative.)
