I have several Optiplex GX280's I've been tasked with setting up as guest PC's for people visiting my workplace. They all have 4GB, and windows will show 4gb, (2.99Gb useable.) (64-bit Windows 7) I know this is because the memory remap feature needs to be enabled, but the BIOS does not have this option. Any chance someone has a BIOS that is already modded to have this feature, or can someone mod this option in an upload it? Thanks!