The BIOS is configured for RAID rather than AHCI/SATA by default. Bumped into that with mine. It was fairly easy to modify Windows to not use the RAID version

The BIOS is configured for RAID rather than AHCI/SATA by default. Bumped into that with mine. It was fairly easy to modify Windows to not use the RAID version so I could boot into Linux on one drive and boot into Windows on the other. Suspect I could get Centos to go the RAID route, but did not want to mess with it.