Originally Posted by |MaguS|
but 3.4 is doable?
I'm using a Zalman CNPS9700 and seeing Prime95 small fft temps of about 80C or so after 30 minutes at stock voltage (1.24) and 3.36 GHz (160x21). I've read that these chips start to lose stability at around 90C or so. Not really sure how high the temps would get with the stock cooler, but I'm sure the Zalman is far more effective so you might have issues. However, normal use temps hardly go above 40-45C even under load in games. Crysis and WoW (yes seriously) are the only games that have stressed the chips to the point they'd hit 50C under load so far. Speedstep works very well.
In my opinion you'd be fine using the stock cooler for normal everyday use with a mild overclock. You might not have a 100% stable 24-hour Prime95 test, but games never stress your CPU cores like that. Using a 160 base clock and auto voltages (except 1.55 V on the DRAM bus), I've had 100% stability. IMO get some good DDR3-1600 RAM to make it easier on yourself and mess around to see what the best overclock you can manage is.