Hello. I have an ECS M935U motherboard running a 2.0ghz p4. The board has 4 DIMM slots. 2 for ddr and 2 for sdram. i recently got rid of my sdram (had 1 512mb and 1 256mb) and opted for 2 256mb sticks of pc2100 ddr. well here is my problem.... my comp will not boot into the bios if i had both sticks in. i've tried using each seperately (in each slot) and even tried 2 other sticks of ram. can anyone shed some light on how i can get my comp to boot with both sticks of ram?