I have a home built PC with the Asus P4PE MB. I have been running with two sticks of 512MB DDR Pc2700 RAM (1GB) with out any problems. I purchased 2 sticks of 1GB DDR PC2700 RAM (2GB) and when I install these, the PC will no longer POST. From what I have read, the P4PE board can handle up to 2 GB of RAM. Why will this not work? I am running XP pro with all service packs and updates.