> Yes, in ahci mode the cdrom  is detected but the disks are not, in
> legacy mode neither is detected.

OK. I am now able to start testing on the VT-d 755 box as well.

I am just first going to give 4 logs.

1. static-based disk naming mem=3G (gets to initramfs prompt, probably
similar to Andrew's).
2. static-based disk naming no mem=3G option (crashes with panic)
3. udev-based disk naming mem=3G (gets to initramfs prompt, probably
similar to Andrew's)
4. udev-based disk naming no mem=3G option (crashes with panic)

These are before the last set of patches, but no major fixes were add
since. I'll update to the
latest patches and re-test to stay in sync though.

Let me know if there are any other things that I can help test with.

Also, Andrew: which BIOS revision are you at?
Have you tried looking for a new one?

Cheers,
Todd

-- 
Todd Deshane
http://todddeshane.net
http://runningxen.com