Need help oc'ing a i7 960 on a Gigabyte G1 Assassin

Hello everyone, I am in the need of some help of oc'ing my cpu. I tried to oc my i7 960 a while back by following some guides and other members posts but in the end I ended up BSODing my computer. I have returned the bios to the default setting and need your guys help. I want to get it to the 4-4.2GHz mark.

My parts are:
Intel Core i7 960 [stock]
Gigabyte G1 Assassin mobo
Corsair H80
Corsair Vengeance 24GB 3X4GB DDR3-1600 CL9-9-9-24 XMP
Corsair Force GT 120GB [main boot drive]
Western Digital 2TB Caviar Green [data drive]
EVGA GTX 680 SLI
Corsair HX1050

Any help/input would be appreciated.

Did you read our guide yet?

Try taking a read through that and follow the steps and see where that gets you. Post back any questions you have after reading.

@mokrunka thanks for the link, i took a look at it and tried to oc it. However, I was not able to get my computer to post after the oc, so I ended up returning to stock bios settings
Got any tips on about what the values my settings should be?

Well, what process did you use to try the overclock? The guide recommends small steps; were you able to ever get the computer to post with any amount of overclock? If so, what settings did it fail on? It may help if you can post a BIOS template with the settings you are at when it fails, and the settings you are at just before it fails.

If you are increasing voltages and speeds in a step-wise manner, you should have a relatively clear idea of what your limit is for your setup.