Q6600 w/ ASUS P5B-V

[StuffandRawrs]

So I am using a Intel Core 2 Quad Q6600 2.4GHz on ASUS P5B-V motherboard for about 4 years or so. Upgrading most of my rig right now, but I do wish to save up some money with the CPU and mobo (and hopefully keeping it for a few more years or so), so was thinking about overlocking it. My knowledge about OC is pretty basic, so obviously will need some advice. Would like to know how far I can go with this stuff (if OC is possible at all). I don't think I need a OC to 4.0. I guess 3.0GHz would be enough or so (or at least to run decently with GTX 550 Ti and avoid bottleneck). I am using a default Intel cooler right now so clearly will need something for replacement.
(Ordered a AC MX-2 thermalpaste so far.)

Running 3 DDR2 RAM w/ 1024MB each, PC2-6400 (400 MHz). (Got 4th on reserve. Might stick it in if a must.)
PSU CM GX LITE 600W.
Win7 Ult x64

 

[alvine]

i had a q6600 running at 3.4ghz on asus p5q se, at 3.6ghz the mobo broke and i had it RMA'd lol
on nvidia sli mobo for lga 775 (forgot the name) the same cpu would only oc to 3.2