>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 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20080602/17607bb3/attachment-0004.html>