OIC, that explains it
You can try and clear the CMOS, look at the manual for motherboard for direction
You can try and run Memtest86 and see if the ram is at fault
http://www.memtest86.com/Here's a checklist from Hal9000 from another forum
1) Remove EVERYTHING from the case
2) Set the motherboard on a non conductive surface. The motherboard box is perfect for this. .DO NOT PLACE THE MOTHERBOARD ON THE STATIC BAG! It can acually conduct electricity! We are going to try and assemble a running system outside of the case.
3) Install the CPU and heat sink.
4) Install the RAM (only install 1 stick for SDRAM, 2 for RDRAM)
5) Install the video card
6) Connect the monitor to the video card.
7) Connect the power supply to the motherboard.

Connect power to the power supply
9) Do NOT connect ANYTHING else. Make sure you have the power connector on the CPU fan connected.
10) Use a small screwdriver to momentarily short the power switch connector on the motherboard.