AOpen AX63Pro slot 1 Via Apollo Pro P2/P3/Celeron motherboard. Archive contains all AOpen BIOS releases 1.17 thru 1.32, what's fixed or added by various BIOSs, English manual in PDF, board's specifications, AOpen's tested CPUs table ('way outdated). Via 4-in-1 drivers can be D/L from Via's site. BIOS 1.28 & up definitely support FCPGA & slot 1 P3 1000MHz 100 & 133 FSB, FCPGA Celeron 700MHz 66 FSB. Slotket adapters work to use socket 370 CPUs. Win9x, WinME, WinXP Pro all run fine on BIOS 1.28 or later (I think 1.17 through 1.20 are buggy so don't use them). Board's USB is really slow getting pics off digital cameras & kills batteries so be sure to use a card reader. Board's stable overall but I don't overclock.