Low default Vcore and Multiplier on X4 955

[Effex]

I have a gigabyte ga-ma790fx-ds5 mobo. I just upgraded the cpu from a Phenom 9500. I updated the BIOS to F8a and it was instantly recognized. however upon launching CPU-Z it shows the Multiplier defaulted to x8 and the Vcore at 0.928

so I install Overdrive and set the multiplier at x16 and the Vcore at 1.35 and it seems stable at 3.2ghz. I run windows performance index and it rates my cpu performance at 5.0 just like it did when it was at 1.6ghz

I went into the BIOS and set the multiplier to x16. when I go to adjust the Vcore it only goes to +.500. since it showed the normal Vcore as .975 I tried to up the Vcore by +.375 for a total of 1.350

I reboot and my pc doesnt post. gigabyte's website says to use F6 Bios so I load that successfully and that doesnt post either

I have run out of ideas...

 

[patonb]

Try clearing the cmos.

Is overdrive a software over clocker?

 

[Effex]

Try clearing the cmos.

Is overdrive a software over clocker?

I have cleared it by using a jumper many times