I have 512Mb of DDR-RAM in my computer, PC 3200. I bought this comp in 2003. For a while BIOS told me that i have 512 Mb of RAM, and so did CPU-Z and so did various other programs. suddenly i only have 448Mb of RAM. I checked the RAM and their both sticks of 256Mb. So what the hell is happening? All i can think of is that maybe one of the SIMMs burnt out or something, should i replace it or will it last? I guess if you need more stats on my comp: AMD XP 3200+ 2 80gb WDCs Onboard Video, Geforce MX4000 Asus AN7 mobo 512? Mb or PC 3200 RAM, made by Infineon.