gotta be the driver. Have you tried other HDD drivers available for the controller? Did you re-deploy your PXE rep?
Try disabling SATA Native Mode in the BIOS.. I cant really find any advantages to it, and im sure that your image will see the disk no sweat
That did it Scott_E
dumb hp told us to change the hdd translation mode and that didn't make a difference. wasn't even looking at that setting before.