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Core i3 Overclock Help

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GamerLCD

New Member
Joined
Mar 7, 2012
Hey everyone, I'm new to the forums and I am in need of some advice per say.

My old motherboard blew up a week ago and so I said screw it, and spent my entire income tax check building a new computer from scratch. My last motherboard was an old model that supported 1156 cpus. The old one was an asus p7h55-m. With that mother board I was able to overclock my core i3-540 no fairly easily from 3.0ghz to 3.7ghz. There was an option in there that let me set my BLCK from auto to DHOMP or something to that effect and that overclocked everything for me.

My new motherboard is an 1155 socket type and is an asus p8h67-m and my new cpu is the second gen core i3-2120. This motherboard does not have that option and makes me set the BLCK manually. The default right now is set to 110.0 but when I try and change it just the slightest bit it says overclocking failed.

I want to get this bad boy up to about 3.8 or 3.9 ghz which would be about 190.0BLCK. Do I need to change the voltage too or something? What do I need to do?
 
Good advice from dreamtm5. Since Turbo Boost isn't supported w/ that chip, and the multiplier is locked at x33, you're restricted to only being able to raise the BCLK. The default BCLK is 100, and depending on the quality of the chip it should hit 104-105 max. for an effective 3.43-3.5GHz clock. So lower the BCLK from the current 110 to 100, and work your way up to 105 checking stability at each step w/ Prime.
 
I was able to get it to 107 stable. Anything past that became unstable. But I windows 8 is not showing the overclock frequency change.
 
You can't change the multiplier on the i3s or non-K i5s or i7s for LGA1155. No overclocking there.

Since the PCI-Express clock is locked to the CPU clock, it's impossible to overclock using bCLK more than a few percent on these CPUs, too.

Intel effectively killed overclocking for all of their CPUs except the LGA2011 i7s and the K model i5s and i7s. You'll get no substantial, tangible overclocks from any i3s, Pentiums, or Celerons on LGA1155.
 
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