you wont have a problem with that overclock.
it's quite possible you wont even have to up the voltage, therefore you wont even need to worry about the temperature (it will stay the same). (at the most)you shouldnt have to bump the voltage more than .5 to get a 400mhz oc. with that low of a starting cpu temp, you may be able to press past 2.7plus ish...tho i dont know anything about that mobo.
but definitely read up or ask questions here before you go in and start changing everything.
as stated above...every system is different. the only real way to know if a component can 'handle it" is to try it and see if it works.
you'll need to let us know your ram speed and manufacturer as well.
i'm glad to be of assistance if you need it.
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