Originally Posted by TheWolf
Are you using the correct 4+4 plug. I know some PSU have more than one.
I'll have to go to the shop "out back my house" to have a look at my CM 1200w.
But I think it has 2x 8 pin plugs.
Edit: you can also test using only a 4 pin 12v. if the 4+4 will split.
Nope not the CM 1200w Silent Pro Gold, its another PSU I have that has dual 4+4.
Have you tried disconnecting all the case wires & try starting it with a screw driver by jumping across the pins?
I didn't note if your board has a on board power on switch?
I tried both 4+4 plugs on my PSU, no dice.
My board has no on board power switch, I was just hooking up my cases power button to the mobo while trying to power it on out of case.
I've got my 650w PSU in case and running the machine ATM. I'm going to experiement with my old mobo and the 1000w and see if I'm getting the same problems now. Maybe something went nuts with it between the time I had it tested and now.