Good day. Thanks in advance for any help. I have a Tyan S2895 (Thunder K8WE) with 2 275 Opterons and the latest (1.02) bios. It appears to have an nVidia nForce SATA chipset which connects to a 250gb WD Caviar SATA drive. Using the CentOS 4 update 2 x86_64 DVD, the install is peachy until half-way through the "performing post install configuration" bit. Then it hangs forever. I have tried: disabling RAID in the bios mem=256M on the command line a text install -- the hang was at the 50% marker a memory check -- all clean according to memtest86+ 1.65 CentOS 4 update 1 on cd smaller root partition without any change in behavior. I then installed an old Adaptec 29160N and an old SCSI disk and turned off the SATA bits in the BIOS. CentOS installs just fine. Has anyone else seen this issue? If it's a problem only with the nVidia SATA drivers, anyone have a recommendation for a SATA card that could be used instead of the onboard stuff? RAID is not necessary. Thanks again. Cheers, Zube