Installing Windows Server 2003 R2 on Dell PowerEdge 1950
From Peter Pap's Technowiki
Windows Server 2003 R2 is old! So old, that it doesn't have the RAID drivers for an old server like the Dell PowerEdge 1950. Annoying! So here's what you need to do.
1. Get into the server’s BIOS and changed Drive Emulation Type from Auto to Floppy Emulation.