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I5-2500k ASRock Extreme3 Gen3 OCing Help! - First Timer

post #1 of 5
Thread Starter 
I have basically just built my first computer recently and wanted to OC my CPU. I have read several guides and they seem to vary such as "C1E should be disabled/enabled" and etc. It seems like 4.5 is the standard OC for the I5-2500k, but last night it did not go so well. While I let Prime95 run for about 11 minutes, I got a BSOD. I went back into BIOS and started messing with it a little, and suddenly it kept freezing. When I restarted my computer, it wouldn't even boot anymore. BIOS kept freezing, so I had to take the battery out to reset it. Can I get some guidance on what settings should be Auto, Enabled, Disabled? Thanks for your help!

I5-2500k w/ Hyper 212+
ASRock Extreme3 Gen3 (1.2)
Corsair Vengeance 8GB 1600 9-9-9-24 (not sure if 1n or 2n)

The BIOS is currently at default settings but these pictures were what it was set at when I tried OCing.

http://imgur.com/a/pscpz

Any CPU fan setting advice would be very helpful as well as I feel like my CPU fan is blowing at such high RPM even during idle.

**edit: I especially need help with vcore. I read that offset mode is best, but what offset do I set it at?
Edited by bkstarx1 - 12/3/11 at 10:17pm
post #2 of 5
I set my c states back to stock as I got the 124 bsod.

EDIT: Just realized i'm e4g3 not e3g3.
Edited by BlackVenom - 12/3/11 at 10:20pm
IntelAsylum R2.1
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M11xR2
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IntelAsylum R2.1
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M11xR2
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post #3 of 5
Try this;
disable internal PLL overvoltage - only needed if failing to boot in to windows
enable speedstep
use fixed voltage for the cpu and start at about 1.25v
set load line calibration to 3, just keep an eye for your vcore in cpu-z to make sure it's not getting too high.
set c1e, c3, c6 to auto/enabled
turn thermal throttling on, this will keep your cpu from burning up if it ever gets too hot
everything else keep as is in your pics

After that follow this guide here at Overclocking to 4.0GHz. Once you find out how much vcore you need for your OC then you can go back and set up the offset voltage.
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post #4 of 5
Judging by the screen shot your voltage was way to low. For a 4.5ghz overclock on a 2500k you will want at least 1.3v but I would put it at 1.35v to start and then work your way down after you determine everything is stable. That offset voltage is a little tricky. Keep bumping it up and restarting and see what voltage it gives you until you reach 1.35. I'm not really educated in how that works, so that's how I figured it out lol.
Good ole Sandy
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Good ole Sandy
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post #5 of 5
If you want a simple stable overclock though just select a preset Overclock setting in your bios. I can't seem to get my stable at idle no matter what I do so I just chose a preset overclock . (Its stable at 4.5ghz for 8 hours + in prime but wont idle heh) 4.4ghz works fine for me and uses a little more voltage then necessary, but not too much.
Good ole Sandy
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Western Digital Black 500GB OCZ Solid 3 120GB SSD Noctua NH-D14 Windows 7 64bit 
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Good ole Sandy
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Western Digital Black 500GB OCZ Solid 3 120GB SSD Noctua NH-D14 Windows 7 64bit 
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