I have this mobo and to date have just been using the 20 pin ATX power cable/connector, the mobo manual does confirm I can use:
20 pin ATX power cable/connector
24 pin ATX power cable/connector
my PSU (Cooler Master GX 750) comes with 20+4 pin ATX power cable so will support both 20 & 24 pin motherboards
the system is running fine with 20 pin but I have since added a 2nd GTX 460 SOC (so now SLI) and Asus Xonar D2X soundcard (PCIe) and read that to ensure all cards get the power they require without stressing the 20 pin I should use the 20+4 pin ATX power cable, is this true - is there anything in what I've read/heard?
really value the Tom's members input so if anyone can confirm which I should use for the smoothest / safest system that would be great
More about :asrock z68 extreme4 pin atx power cable connector