I need some help with my Q9400 I recently got. Tried installing it, when I start my computer, it 'goes' on, the monitor doesn't come off standby, nor does my power light actually light on but all my fans are zooming.
Here are some specs.
8800 GT graphics card
600watt Power Supply
Why don't you try a BIOS update first... it's uh, free. Or better yet, find out what BIOS revision you are running, what the most current is that's available, and what the compatible processors are for the most current revision.
A gateway board with a 965 chipset will not run that cpu. No 965 chipsets officially support them as far as I can recall. They only officially support 1066 FSB cpus. There are boards that can run them basically any core2 with a BIOS update but you will not have such a board in a gateway.