I've got the same kind of problem as JC Soulet. I'd like to add a IBM 40GB hard disk and the bios hangs during the auto-detect !

The characteristics of my bios and motherboard are :
Biostar M5ATC(socket 7)
My Bios is Award Modular BIOS v4.51PG
Bios ID 06/23/98-ALI-154x-2A5KIB09C-00
Bios Date 06 23 1998
Bios OEM signon ATC0623B
Chipset ALI M5ATC rev 1.1
bye