I got this mobo a few weeks back and it has been good except for a few quirky things that I can live with. Here are my specs first of all.

Specs:

Phenom 9500 w/ Thermalright Ultima-90 HSF
OCZ Reaper 2x1GB DDR2-800 on the furthest slots.
WD 2 x 320GB B3s RAID 0
External sata2 controller, WD 750gb
XFX Geforce 8800GT
Xfi-XtremeMusic
Intel Pro1000 GT Nic
Corsair HX 620W
Antec 900 Case

Everything installs fine (dualbooting XP and Vista Ultimate, both 32bit), everything runs well in windows, the weirdest things occur with the booting process. Currently, if I shutdown my computer and cold-start it, it will not boot and I can hear the 8800GT’s fan going at full. I eventually am forced to power off the PSU, let the red light go away, and the start it all back up, everything is fine then until next shutdown.
Then, when I get into windows, the USB Logitech mouse receiver for my VX Revolution doesn’t respond in the front USB ports. I have to take out the USB receiver and plug it back in and everything is fine. A soft reboot will not result in this problem. I am on BIOS 12 and not going to move to BIOS 13 beta considering all the weird issues. I’d thought I’ll just throw that out there. Anyone notice it takes a long time for the monitor to detect the signal during bootup. I usually see my screen when the RAID setup kicks in.

I had the Silverstone Zeus 650W and Crossfire 3870s before going to the Corsair and Geforce 8800GT. This boot issue happens to both combos. Weird….