Overclocking is step by Step method, you can't go directly on some frequency and voltages and prey it to be stable. ... First Download the CPU stability testing software prime95 from here :
http://www.mersenne.org/download/
Use Hwmonitor to monitor your temps. Don't overclock by any software because overclocking is not the thing that can be done by software. First set the XMP memory profile(if exists) enabled to set your RAM correctly. Then Go in BIOS and find the CPU clock ratio, this is the multiplier setting. It starts at a multi of A (some no.)xB(BCLK)(normal factory settings) to give you A Gigahertz. So up it .5 at a time and boot to os and test with P95 for stability and monitor your temps. Do this for approximately 20 minutes...