asus sabertooth 990fx r2.0 bios problem, windows 7 boot fail

James Wong abc

Reputable
Feb 24, 2014
10
0
4,510
I recently built my first gaming pc with the "asus sabertooth 990fx r2.0" and a fresh copy of "windows 7 home premium." And I ready the manual and it said that you should consult a professional when doing any bios changes which is understandable. But when I went into my bios and only changed my mobos performance from normal to asus extreme to give me a little bit more power windows 7 fails to boost and when windows 7 ran a program to see what the problem was it couldnt find one. so I reset my bios and had to restore my system to a few days back. Whats happening? What am I doing wrong?