Help Overclocking E6320 to 3.2 GHz

[Cortana]

I have an ASUS P5B-Premium Vista Edition Motherboard
2x 1GB Value RAM DDR-800
Silverstone ST-75F 750W
Point Of View 7950GT
Zalman CPNS-9500AT
...

I need help overclocking my CPU over 3.2GHz since my CPU doesn't want to run Prime95 since it says it expected rounding to be 4 and it is 5.

Also need help on the CPU's max voltage. Intel doesn't have it on their site.

Thanks