It can support 40G HDD, but please update the latest version BIOS.

The major improvement of GA-965G-DS3 revision 2.0 is the optimization for supporting of Intel Core™2 Quad processor which was launched in November 2006. This optimization provides more stable and efficient power for the new quad core processors which demand much higher power consumption than Core™2 duo processors do. There is no performance and compatibility difference between GA-965G-DS3 revision 1.0 and 2.0 when those two products work with Core™2 Duo processor.

The second improvement of GA-965G-DS3 revision 2.0 is the audio quality. GA-965G-DS3 revision 2.0 improves the audio quality by applying Realtek ALC888 audio codec in stead of applying Realtek ALC883 audio codec in revision 1.0.

This problem occurs because the system incorrectly sends certain nonmaskable interrupts. When there are more than 8 logical processors that are available, some logical processors do not receive the nonmaskable interrupt that instructs the computer to restart. You can fix this issue by downloading the hotfix file from the Microsoft website and executing it.

Flash beta bios F3b or above will solve this problem.

Please press [Ctrl] + [F1] in the BIOS menu to enter [Advanced BIOS features]. And after set the option [Password check] to [system].