2206 installed without issues, from 2205 (early P5WDH; Rev 1.02g; 66MOAG)

PROCEDURE USED:
- power off harddrives (SATA HD bay system installed)
- clear BIOS (jumper, 10sec)
- install 2206 with EZFlash 2 from USB flashdrive
- clear BIOS again (jumper, 10sec)
- set BIOS settings and reboot
- verify proper BIOS settings and power-off system
- set HD power to "on"
- power on system and boot to OS

RESULTS:
- no new "devices"
- no problems with onboard sound staying at "disabled"
- memory speed, temps, OCCT v1.1.1-b4, etc., all nominal
- did not test "multi" capability
- did not test Vista Ultimate 64b