How do i OC a E6850??

[Saberous]

Hey everyone, am new to Overclocking so am here to find out how to do it.
I would like to OC my Intel Core 2 Duo E6850 3.0Ghz to at least 3.6 and 4.0 max
Everytime i use ntune nothing works.
What would i all need to do this?

Does anyone know if the COOLER MASTER GeminII is any good? Also does anyone know a good Blue led 120mm fan to use with it?

This is my rig, I get a score of 11001 with 3Dmark06

Intel Core 2 Duo E6850 Stock
EVGA 680i SLi SE MOBO
XFX 8800 GTS 640MB XXX OC with Riva, Core Clock@640Mhz Shader Clock@1600Mhz and Memory Clock@1000Mhz (Soon to have another for SLI)
2 Gigs of OCZ SLi DDR2 800Mhz( there will be 4 gigs soon)
1 Seagate Barracuda HDD 500Gig 7200rpm and 16MB(Soon to be 3 500 Gig HDD)
Ultra X3 1000watt PS
LiteOn DVD burner.
Ultra Black Aluminus Case with two 120mm fans

[ncc-1709]

overc locking is best donw via the bios. less chance of a windows coruption frying your mobo.

[Saberous]

I know its down in the bios, am woundering how what are the common voltages, and fsb. stuff like that, and whats a good stress tool.

[_LiteSpeed_]

Kick up all the board voltages to max.
Set your clocks to 4-4-4-26.
This will help.
Run unlinked.
Set ram to one half the FSB.

[Maxi]

Take a look here.

http://www.ocforums.com/showthread.php?t=515316