E8400 not working with P5N32-E/1903 bios

[Doug1212]

Hello,
I just installed a E8400 into my P5N32-E ASUS MOBO. I have downloaded and flashed the 1903 bios. Now my computer goes to blue screen whenever I load to windows desktop. My friend told me there might be a problem with my realtek drivers? Does this sound right? If it is my drivers where must I go to unistall and download/install new realtek drivers. Thanks for your help.

 

[enzo matrix]

Was the only change to the system the CPU?