>I was able to install RHEL 4 with no install parameters, but I can't upgrade using the RHEL 5 DVD, still the same issue..no HD detected in install process.

What does your bios say for SATA config? I use many asus mobo’s for desktop/lab/home setups.

That mobo should work, all mine have the SATA config set to AHCI.

jlc