On Mon, 27 Jul 2009 at 1:19pm, Veiko Kukk wrote
I'm not sure for this particular model server, but normally this is a *BIOS* setting for the SATA controller.
There are no settings in BIOS for AHCI mode, it's only possible to choose between raid and sata controller mode, i have chosen sata mode.
Check to see if there's a BIOS update on HP's site. I had some DL160s with an old BIOS with no option for AHCI mode. After upgrading to the most recent BIOS, the option was there.