Computer hangs at BIOS boot screen

[casualsax3]

ECS KN1 Extreme with an Athlon 64 3000+, 2x512mb Kingston PC 3200, 2x80gb Maxtor SATA drives.
When I turn the computer on, it just hangs at the green KN1 Extreme logo screen and won't advance. I believe that's the part where it would say verifying DMI pool, if the logo was disabled.

With no ram, the computer beeps like it should, and gives no video. With either stick it hangs. Unplugging all extraneous stuff from the motherboard doesn't change anything. This had happened a few times before, and I was able to just reset the CMOS with the jumpers, and the next boot would be fine. That doesn't seem to be working now though. Any thoughts on what's causing this?
Googling revealed someone else having the same problem with the same motherboard, which was my first instinct.

 

[casualsax3]

I was able to get it to reset by pulling the battery and unplugging the PSU. Doesn't explain anything though.

 

[GuitarDaddy]

It sounds like a ram incompatability, do you have another ram stick you can try?

Or possibly not enough power from the PS

 

[casualsax3]

Oh forgot, I have a 480 W Silent Purepower from Thermaltake. All of the voltage levels seem very happy. Ram is my second choice after the motherboard. My father and I built the same exact computer, with the exception of video cards - he has a 6800GT and I went with an X700 Pro. His computer is running fine, never given him trouble.