Shouldn't really be a BIOS issue. The BIOS correctly detects it etc, it's just the OS drivers can't access past 128Gb since they only use the 28 bit LBA method. The drive is backward compatible for this reason.

Drakino is most likely right in saying that NT doesn't have LBA48 IDE drivers and that's really what I was asking - i.e. do they exist. The server is a DELL Poweredge 1400 with a Serverworks chipset. From the looks of things, the drivers don't exist so I guess I'll have to buy a new IDE card for it.

Thanks for the offer number6 but I'm sure I can get one over here...