This is my second VM HDMI, after the first wouldnt Post at all. The second one POST was successfull, but now I can only use my Pentium 4 630 with its heatsink. If I use any part of the intel e8400 (processor or heatsink) the board wont post. I have tried using BIOS 5030, and 4050 but neither get it to POST.
 
Set Up
PSU : Corsair 450w
RAM : Crucial PC-4200 1 GB Sticks x 4
 
Please help me, Ive been trying to get this computer fixed all week.

I might try reading my manual to see if it supports 4200 RAM.  This is from the Asus Specs.
 
"4 x DIMM, max. 8GB, DDR2 800 / 667 MHz, non-ECC, un-buffered memory
Dual channel memory architecture"

First try to boot it with just 1 stick of memory instead of all 4...then if it works, add more sticks.