I have a PE2950 rebranded to Unisys EL3220ES (or something).  I run the newest OpenManage Install thing, but it says 'system unsupported'.  I tried to upgrade the BIOS hoping it would return it to a Dell brand from 2.4.3 to 2.5.1 (I think) and upon reboot it can't load the new BIOS.  I tried to install the Server 2003 R2 from the CD, but it doesn't recognize the RAID array (6 73gb SAS in RAID 10).  I hit f6 to load drivers, but it only supports floppies.  I plugged in a USB floppy, but it doesn't recognize it.  Any ideas???