MHR wrote:
"enhanced," the other is set to IDE, but can be set to RAID or AHCI.
I've used CentOS5 with many different mobos and SATA. I always configure SATA to AHCI if the mobo/bios allows it. I have not seen any problems with AHCI.
A couple machines with both PATA and SATA has brought some issues with boot order, but nothing that could not be solved by specifying boot order in the bios.