I am currently using a Socket 775 - NVIDIA GeForce® 7150 / nForce 630i - GA-73UM-S2H (rev.1.0) and upgraded from an Intel Duel core E2200 to a Intel core 2 quad Q9550. The bios only recognizes the new processor as a generic Intel 4. I was running 64 bit windows with the E2200 after installing the Q9550 the OS was freezing on the windows logo. After some fiddling that did not work I installed the 32 bit OS with no problems. The 32 bit OS (windows 10) recognizes the processor as the Q9550 (even that it is 64 bit). So I went to reinstall the 64 bit OS. It loads the files but hangs at the windows logo. My bios is American Megatrends version 080015 date 08/14/2008,(and have never updated it). I noticed on your website for my motherboard that the Q9550 is compatible with this motherboard after the the GigaBytes bios revision F8b (beta) last possible GigaBytes bios update for my Motherboard. My E2200 was compatible with GigaBytes bios revision F5 (why do I have an American Megatrends bios and not a GigaByte bios. My question is do I need to flash my bios so that the bios will recognize the the Q9550 properly (bios recognized the E2200 as an "Intel E2200 dual core @ 2.20 GHz" on the bios post screen). I can not find an updated bios from American Megatrends that supports my processor, can I flash/replace it with the GigaBytes bios and if so can I do it with just the F8b (beta) or do I need to replace it with the First bios and work my way up the updates; or start with the last non beta bios then update it with the beta bios