I've just got some emails with some useful info you guys may be interested in along with some new UEFIs that may solve the issues, so let me know your experiences Here is a copy/paste jobby of the most relevent email;

Here is the status update.

1.Floppy drive not detected in Windows unless it is set to the highest BBS priority in the UEFI.

Hans already tested. No issue found.

2.Hauppauge WinTV HVR-1800 PCIe TV tuner/DVR card will not install

We didn't have the same or similar device for testing

3.Creative X-Fi Platinum PCI will not install in the lower PCI slot, installation is successful if the card
is moved to the upper PCI slot.

Attach BIOS may have chance to fix it.

4.Logitech G19 keyboard does not work properly

Attach BIOS may have chance to fix it.

5.Razer Copperhead mouse is not working in UEFI, pointer is stuck in the middle of the screen and can only be
moved up and down.

Attach BIOS may have chance to fix it.

6.- Problems picking up 2nd video (GTX 470) when running in SLI mode. Out of 5 boots into Windows, it fails
to pick up the second card about 3-4 times. This is happening completely random. Supplementary Molex power
connector is plugged in. (user reported)

Test with 2 EVGA GTX470 without seeing the same symptom.
I suggest update VGA driver or chage the SLI bridge for try.
If possible, please test the VGA card with powerful power supply or use two SLI bridge to connect VGA card for try.
UEFIs I have been sent will be uploaded to the first post.