I would follow the instructions directly from Western Digital instead. I can't remember BIOS limitations from around that time, but you should be limited to at most 8G (total), so it is still a very big issue... (Win95A will cause you more grief if you still use that version.) I have never had a WD drive I could not install following their instructions. Sometimes (when there is a problem), you have to refer to their special BIOS limitation special jumper "over-ride" settings section. I am going to assume you will have to use a DiskManager type of program, unless you get an add-in card for onboard BIOS. (Be real careful to get one for your exact OS (and your "next one") if you go this route...) Rick Glazier ----- Original Message ----- From: "Brian L. Sanburn" <[log in to unmask]> > By the way, in anticipation of potential problems installing a new HD with an AMI BIOS dated mid-1995, I followed instructions in Bigelow's PC Repair and Maintenance book about having the HD auto-detected by the BIOS and then manually adjust the cylinder and head numbers to work around the lack of BIOS support for such a large drive. Do you want to signoff PCBUILD or just change to Digest mode - visit our web site: http://freepctech.com/pcbuild.shtml