I am intending on having a i5 3570k and overclocking it to 4.0-ish.. basically as high as is easily stable, and *can be air-cooled fairly quietly* ("quiet" = barely audible from 4 feet away, in a almost silent room)
the 2 main Qs are, what size PSU is needed for different frequencies, and how much more heat is created
How about the heat increase when going to 3.8? 4.0? 4.2? 4.4?
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More aboutnewb 3570k 0ish watts heat
The PSU isnt a concern unless your running a 300W with a graphics card, a decent 550-650W will cover you just fine.
Power Draw roughly equals Heat Output and both are expressed as TDP, most of the energy going into the CPU is being lost as heat. There is a formula you can use to calculate the TDP of an overclocked CPU, but you will need the voltage it will be running at to get an accurate result.
If your going to be overclocking at all you want aftermarket cooling, something like a 212 EVO will be fine for a 4.2Ghz overclock.
I've seen the 212 evo mentioned a lot in OC threads. Fairly low-cost also. Would running it for 4.2 require the high fan speed? I'm assuming any OC would require a HSF to be on high speed? nevermind this seems obvious in retrospect )
I saw this on another thread
It's extremely easy, depending on your motherboard. I was playing around with the OC software that came with the ASRock Extreme4 this morning and went from stock 3.4 to 4.1 with a Evo in push only and stayed under 60C under load (used OCCT to test). All I did was click the "+" sign on the interface a couple times...