MB is rev 3.1. bios is UEFI. first tried installing from pirate win7 on usb. no luck. so bought win7 home premium 64. same problem. since i built this rig in a very tight 3u server case and didnt want to take everything apart (yes, i know i should have tested everything before installing in case. live and learn), so i have left the raid array on first two amd sata connections, and set up the dvd on external usb connection (seems to work fine), and have tried first, a new seagate 4tb drive on the marvell controller(windows saw it, but wouldnt install on it), then thinking maybe the drive was too big and new to use, swapped it with an old working 600gb drive. wiped it, put on new partition and formated... no luck.
"setup was unable to create a new system partition or locate an existing partition. see the setup log files for more information"
i had really hoped that i could install windows on the HDD, install drivers for raid array. copy boot drive image onto raid array, and go from there. but i cant seem to install on anything.
thanks for taking the time to help BTW