I have a KT3 Ultra MS-6380E motherboard. I was using two 512 MB\nPC2100 memory sticks - no problem. I recently obtained a 1 GB PC2700\nstick and have inserted it along with the other two. My BIOS\n(American Megatrends version 5.7) is only reading 512 MB from the 1 GB\nstick. A program I have (System Info for Windows) does recognize the\nstick as a 1 GB, though.\n\nHow can the BIOS only read 512 MB when the software program reads 1\nGB?\n\nAny suggestions as to how to proceed? Thanks for any advice.