I'm using an asus m2n-e motherboard, and 2 kingston 2gb ram cards that came with the computer and were working before. Now that I added another 2 CEON 1GB cards, the system detects all cards, no matter how they are ordered and in what combination, as 2GB. Even without the new cards and just using the old kingston cards they are still detected as 1GB cards. Both the bios and ubuntu show the same amount of memory. I tried running memtest and got no errors. I also tried resetting the BIOS to default (with the jumpers) and still the same results. Any idea how this happened and how I can revert the problem?