I have upgraded my X8DTG-QF motherboard from BIOS v2.0a to v2.0b from your website. Now the motherboard sees, within Windows 2008 R2 x64, only seven video devices. (Note: The motherboard mounts four NVIDIA GTX 295 video cards for a total of 8 video devices.) How do I fix it?
Please roll back to v2.0a BIOS. The I/O space available in BIOS v2.0b is not enough for 8 GPU cores. Please contact Tech Support for the v2.0a BIOS. Our next BIOS release will fix this issue.