I'm running a gigabyte GA-7VRXP motherboard with a 512 PC2700 64x4 2.5 latency memory module. I am trying to add a second module which is identical to the first. When I installed it into the second memory slot, I received a windows blue screen error which stated that my BIOS was not ACPI compatible, and would not allow me to log into windows. My BIOS version is AMI BIOS GA-7VRXP F12, which is the latest for my motherboard. When I tried the second memory module by itself, twenty percent of the time, the system freezes halfway through BIOS bootup, and never gets to the windows 2000 load screen. The other eighty percent of the time, the BIOS gives me the bad memory beep...wo what's the deal? Do I need to RMA this module? Is there anything I should try that I haven't yet? I can't try the meory in another machine because I don't have one