Welcome to Seven Forums.
Sorry your having troubles.
We've seen several issues with similar MOBOs.
If you can get the Windows 7 DVD out of the rubbish bin, We can help you get it installed.
Good job on filling in the system specs, nice machine
To give us a better idea on what hardware you have and what you have done up to this point.
Can you go to this Seven Forums sticky thread Questions to use for help with Installation Issues
, answer as many questions as you can, this will help us to give better suggestions.
First suggestion, go to your BIOS and turn off the Quiet & Cool, we've seen this cause a lot of installs to fail.
Have you updated the BIOS? The new versions will be compatible with Windows 7.
Windows 7 64bit is very finicky with RAM, take out all but one memory card.
Any Over Clocking of the RAM, CPU or GPU?
Reset to defaults.
Disconnect all peripherals except monitor, keyboard and mouse.
Try the installation with the above suggestions.
If your still having difficulties, try these further steps.
Run the Microsoft Windows 7 Upgrade Advisor
, this will find any hardware and devices that might be causing the problem.
Then let's look at the graphics card.
Is it connected with a DVI cable?
Use a VGA cable if you can.
If you have on board graphics, take the card out and try the installation.
Let us know if these suggestions help, if not we can go further.