AI5VG+U3.EXE Award BIOS Version AI5VG+U3. This BIOS is an upgrade for U1 and U2 only. It adds support for AMD K6-3 400, 450 MHz, Cyrix M-II 333, 366, and DMI Function. IT ALSO Address the previous problem Hard Drive "C" not found caused by LS-120 connected to secondary IDE CHANNEL.