Did you have a previous OS on that system? Did your install go cleanly? Did you get prompted to insert a disk with the proper SCSI drivers? Whos 1U system are you using? I would recommend burning a bootable cd of Knoppix or Mandrake Move. This way, you can 1. see if either of these recognizes the module, 2. If so, then you can mount the device (/dev/sda1?) and monkey around with configs and what not. Both of these will also allow you to use networking services, so you can visit the RedHat site and look for drivers, etc. On POST, you should get a chance to go into your SCSI controller settings, typically ctrl-a, IIRC. Verify the devices, etc. Just some ideas.. Or, you can ship it to me and for a small fee......
Good luck