Q6600 OC reseted back to normal

[tubui]

I powered off my comp to install a dvd burner and noticed my Q6600 OC settings of 3.2 reverted back to stock 2.4 speed. I went back to bios and changed back to my old settings of 3.2. But after saving to cmos, nothing would happen. The computer runs, but my monitor does not register with the computer. So what happened?

 

[Crosshairs]

Clear the CMOS and try again.....

 

[tubui]

Clear the CMOS and try again.....

I did, same results. My Abit IP35 Mobo have a ez-clear cmos button and I switched it down and cleared it. Everytime I try to change to 3.2. It would not work, then I would have to power off and on, and bios automatically resets back to normal.