I am a beginner in overclocking and I tried it but the temperature is going so high.
Does anyone recommend what cpu voltage and what MHz I should run at?
I wanted to aim for 4.5MHz but with cpu voltage from 1.3 to 1.5, temperature is going pretty high (my cooler is hyper 212 evo) with 16g of ram.
I tried the things through prime95 blend test and watched temperatures with realtemp.
The truth in overclocking is that some processors are better at it than others - it may be that 4.5 in unattainable on air for a long term overclock for your CPU. The trick is to find the highest clock you can get at the lowest possible voltage while keeping reasonable temps - it takes some experimentation (and usually more than a few BSOD's) to find your best clock. The following article (which I think should be a little helpful) states that going over 1.3v will increase temps quite a bit http://www.pcper.com/reviews/Processors/Intel-Core-i7-3...
I'd probably try 4.5 starting at 1.28v see if you can get stability around there.
Your temps should stabilize within fifteen minutes or so (not real familiar with OCing on air) I would think. If your temps are sill climbing after fifteen minutes, I think I would look at either, a) reseating your HSF or, b) increasing airflow into your case or going to a push/pull configuration on the Hyper 212.
If you can't get your temps to an acceptable level (I shoot for 60C at 100%), you'll probably have to lower your clock or voltage a little more
like you said I tried 4.5 with 1.28v then within minutes the temp went over 100 so I stopped. then lowered 4.4 with 1.28v. within 2minutes? temp went over 100.
then at 4.2 with 1.25v, it's not as bad as other ones. I don't think it exceed 100.
But the temp is definitely not stable at all. Just increasing overtime slowly