I have two 120 GB IDE drives and want to configure them in a Raid 0. I bought a 250 GB Acomdata External SATA drive that included a pci SATA/Raid card. I can get everything to boot up ok, but when i try to raid the two ide drives with the Promise 20276, then the system hangs on the Dura Micro S/ATA adapter, never detecting the external drive. I have a Gigabyte GA-7vaxp MB. Does the Promise 20276 use an extra IRQ when the raid function is enabled? I would really like to raid these drives to use to edit video.