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How much life expectancy do you lose from OCing? I have been kicking around playing with it a bit. But with a sli gpu and duo core processor whats the point?

It depends on how extreme you oc. and what type of oc you do.

Any amount of oc will lower your products life expectancy. though nothing terribly significany. I mean. if you're using the same processor in 4 years and it dies and you wanna complain about how it didn't last you 5, then I'm sorry but you don't be long messing with computers.

as most enthusiasts upgrade or change out their rigs about ever year and a half to 2 years. I've had my Q6600 @ 3.8 for 3 months now and I'm plenty happy. It's nice and stable and I've gained sooo much performance from doing the oc.

So, its your call I supose. I won't give it too much thought. If you know what you're doing you'll be fine.

Gpu's on the other hand are very sensitive to oc's and video cards with extreme Oc's are lucky to last you over a year, if that. Though again it depends on how hard the oc is and how you're cooling it.

I've heavily overclocked my Cpu and Gpu, am I worried about it all failing me though? not in the slightest.

 

not obviously, but there are 2 factors do affect hardware lifespan, vcore and heat. so if you oc, make sure that your rig runs cool and if you overclock yr cpu by adding vcore, it will affect life span  

Since generally your vcore voltage is upped, whether you leave it on auto or change it yourself, your OC will lower the lifespan of the CPU but like it was said before, its not significant enough that it would happen before you end up needing to upgrade anyway. As its also been said bad cooling can affect the lifespan therefore, use a decent aftermarket HSF, and if you really ended up going with a harder oc, liquid, but generally with the dual-cores (the C2D Series) oc'ing isn't too bad. The e8400 and e8500 are well known to be able to hit 4 GHz on air.

I had a P4 Northwood 2.4 OC'd to 3.2 on air for 3 years(it hit 3.8 but not stable enough for every day). It is still running strong. The motherboard gave before the proc. It started restarting randomly. On top of that I had my GPU OC'd about 45% for about 3 years, not a single hiccup and that little card performed very well for a card of its age. I was able to run HL2:EP2 on high settings at 1024x768 on that rig. While thats nothing by todays standards that computer was 5 years old.

 My question is does upping the FSB up the vcore? my current system is Q6600 at 3.0Ghz with 1333FSB.

If you up the settings and your voltages are on auto I believe it will up the vcore but I'm not sure how much it would go before it stops its probably programmed to only go to a safe number, after that you'd have to up your vcore on your own, personally I have my q6600 running at 400FSB x 8Multiplier = 3.2 GHz, and its stable with voltages on auto. I'm using the 780i