Gigabyte GA-EP35c-DS3r incompatibility with SCSI PCI Card?

So I just purchased a new Intel board and Q6600, upgrading from a Asus board and X2 6400. So far I'm impressed with the Intel chip, seems much faster and very stable at 3.0ghz.

I wanted my XP Boot drive to be on the previous boot drive, my 15k SCSI Maxtor 72GB drive, paired with my Adaptec 29320r SCSI Card. Plugged everything up, fired away. The Adaptec BIOS screen popped up as normal, asking me to hit <CTRL A> to go into the SCSI utility where I can setup the drive and everything else. I also plan to add my 2 other SCSI drives in a RAID0 setup for scratch.

The only thing is that when the Adaptec BIOS info pops on the screen, nothing else happens. Normally it will scan the ports and initialize the drives that are loaded, but it did nothing. It sat there for about 1.5 minutes before it got past that BIOS and went into my windows install. Of course I thought it was strange, but continued to load Windows onto my 72GB Maxtor. That finished installing, did the same thing, wait about 2 minutes at the Adaptec BIOS and then proceeded to boot.

It failed to boot, and windows told me that the hardware was incompatible for windows to run on, or something like that.

After reading through the knowledge base at Adaptec, I assumed that my Gigabyte board did no support it. I called Gigabyte, who actually offered great support and seemed knowledgeable. I asked about the boards ability and support of "bus mastering" which was brought up on the Adaptec site. The CS rep said that it should. I then flashed my mobo BIOS to the latest and nothing changed. The Gigabyte CS rep was puzzled and didn't know what else to help me with.

I'm fine with it for now. Ended up getting a 300GB Velociraptor and it's pretty snappy, but not quite like my Maxtor. I would like to still use my SCSI cards for scratch, paging, and other stuff as otherwise it would still sit here. But, Windows wont load when my card is in the PCI slot.

I tried all 3 PCI slots and nothing was different. Couldn't find anything in the BIOS to change anything.

Any help would be appreciated!