Recently I've been given two old LGA775 motherboards, specifically a Gigabyte GA-P35-DS3L and an Asus P5GC-MX/1333. When I tried booting into Windows 7 with an HDD (IDE interface), the Asus one booted without any problem, but the Gigabyte one just wouldn't. Even in safe mode, it would load all the files until one called agp440.sys and then give a blue screen and restart, repeating the cycle. Do you have any idea or tip that might help? Thanks.