I recently purchased a replacement power supply for my machine, and I am not able to get my machine to power on. I am using:
ASUS A8R-MVP motherboard hec Raptor500 500W ATX12V V2.2 SLI Ready Passive PFC Power Supply
The original power supply was this: Antec TRUEPOWERII TPII-550 550W ATX12V SLI Certified CrossFire Ready Power Supply
When I plug the new power supply into the ATX 24pin and 4pin connectors and plug it into a power source, the motherboard power LED blinks and the machine will not power on. This happens regardless of what peripherals are connected to the power supply.
Oddly enough, the machine does power on using a separate power supply, and this new power supply works fine in two other machines, one of which used an ATX 20pin connection, the other used a 24pin connection.
I'm wondering if I'm missing an installation step? I cleared my CMOS RAM using the instructions in the motherboard manual.