Case cooling is just as important to keeping temps under control as component cooling is. You could have the bestest heatsink in the whole wide world, removing heat from the CPU more efficiently than any other air cooling method out there, but if that heat is pumping into the surrounding air without being removed, then it will eventually be the same heat that will be pumped back through the CPU.
As for lifespan, there's never really been any substantiative numbers put together, but generally once you get into overclocking, you get tired of your hardward long before it fails (not always, but that's more luck of the draw than anything else). As long as you keep it within the recommended perameters (which are generally recommended as both ideal for overclocking and best for longevity), then you should get at least 3-4 years out of your hardware. I would say the CPU is nothing to worry about. The mobo, however is more likely to fail prematurely, in my experience (killed 4 or 5 that I can think of, in the last 2 1/2 years that I've been OC'ing). But even the mobos have lasted a good six months at least.
OC'ing the 5200 is a definite. I'm sorry to say, but the 5200's are a really disappointment...not even better than the GeForce 4's they were supposed to replace.
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As for lifespan, there's never really been any substantiative numbers put together, but generally once you get into overclocking, you get tired of your hardward long before it fails (not always, but that's more luck of the draw than anything else). As long as you keep it within the recommended perameters (which are generally recommended as both ideal for overclocking and best for longevity), then you should get at least 3-4 years out of your hardware. I would say the CPU is nothing to worry about. The mobo, however is more likely to fail prematurely, in my experience (killed 4 or 5 that I can think of, in the last 2 1/2 years that I've been OC'ing). But even the mobos have lasted a good six months at least.
OC'ing the 5200 is a definite. I'm sorry to say, but the 5200's are a really disappointment...not even better than the GeForce 4's they were supposed to replace.
