The 12V cable that comes out of my power supply (Corsair TX650W) splits into two adaptors, each 2x2 4pin. The CPU power connector on my Mobo is 2x4 8pin, so I suppose I should just plug both 2x2 4pin adaptors to it?
I have the same issue and same mobo except I have a 2x2 and a 2x3 but no 2x4. THe mobo would not power up the fan till I connected the 2x2 and now boots but keeps rebooting soon after getting the Windows safe boot screen. Do I need a new PSU with the 2x4 or do I have a bad memory chip?
If you have an 8 pin mobo connector and a 8 pin (or 2x4 pin) connector on your PSU then connect all 8 pins. You can run the 8 pin mobo socket with just a 4 pin connector but if you have a high wattage CPU it is safer to run that electricity through the 8 pins rather than just 4.