Notes:

The USB Controller, SATA and IDE channels were disabled at this time
for debugging purposes.
Both 1.0.0 and 1.0.2 BIOSes have been tested. 1.0.2 is strongly 
recommended due to ZCR, Hypertransport, and console redirection fixes.
ACPI is fully functional and compilable with 1 warning on this board.
I have not tested hardware monitoring yet, but will send an update
when I have.
You must run 5.3-RELEASE or 6-CURRENT.
This is running amd64 native with IA32_COMPAT enabled as well.
Zero Channel RAID (PCI-X 4) with LSI Ultra320-0 is confirmed supported. 
The driver is currently being fixed to correct 64-bit uncleanliness. 
(Sep 14 2004)
When using ZCR, the LSI Logic 320-0 must be upgraded to 1Z33 or later 
firmware.
Onboard SCSI-U320 (LSI Logic 53c1030, uses mpt(4)) is confirmed 
supported but misbehaves. May be driver. Still investigating.
Console redirect does not work unless FreeBSD is also told to use serial 
console. Reason/cause unknown. All BIOSes redirect properly. 
(Motherboard, Broadcom, LSI Logic.)

Board must use Crucial or ATP ECC Registered Memory. PC2700 or PC3200 is 
recommended, depending on processors.


TESTING CONFIGURATION:
quad  192.168.0.75  2250
CCSI RMC0452D Chassis, 3x 550W Etasys, 12x SCA Hotswap (4 backplanes, 3 
drives each)
Tyan S4882 Thunder K8QS Pro, 1.0.0 (Release BIOS) and 1.0.2 (Jul 21 2004)
4x Opteron 848 2.0GHz/1MB
8x ATP PC3200 ECC Registered 1GB ea. (total 8GB)
2x Hitachi Ultrastar 15K73 36GB 8MB SCA Firmware A5A5
5x Hitachi Ultrastar 15K73 73GB 8MB SCA Firmware A5A5
LSI Logic Ultra320-0 PCI-X, 64MB, 1Z33 Firmware

Many thanks to David O'Brien, Scott Long, Alan Cox, and Tor Egge for 
debugging assistance and fixes to RELENG_5 and 6-CURRENT to get this 
board working properly.