I5 3570k First Overclock

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Antho694

Antho694

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Mar 12, 2013
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Hi all you Overclocking wizards and witches

As you can tell by the title, I'm starting to embark on my first cpu overclocking adventure and have some questions. Currently, I have it set to 4.1ghz with 1.240 vcore. I'm idling between 33-36 and under max load is hitting 70c. I'm using a Swiftech H220x. I had it set to 4.1ghz at 1.225 vcore volts for a few days and it was stable under Intel burn test, occt and prime94. For some reason tho, when I tried testing it again today after a few day, I got a bdos. Until I rose my vcore to what it is now I kept getting a bdos. First off, do these temps seem okay, and second, what could have caused the overclock to become unstable? Oh, also, I hear I should be overclocking by offset voltage instead. How do I do that exactly?

Also, the BDOS I kept getting was kmode_exception_not_handled
Thanks everyone
 
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thor220

thor220

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Dec 15, 2009
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The error you're getting is from your overclock. It'll probably go away when you set your voltage to offset. You should see a voltage option in the bios. It's either fixed or offset.

I'm both luck and unlucky with my delided 3570k. I got up to 4.5 Ghz with no voltage increase but cannot seem to go further without serious voltage bumps. I figure it's not worth it. Run 12c on idle, 50c max after 3 hr stress test.
 
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Antho694

Antho694

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Mar 12, 2013
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I had a feeling it was a bad overclock. Right now, it seems stable at 1.24v. I'm guessing now the next step would be to lower the voltage and see how low I can get it without stability issues correct? It looks like under every day strain like BF4 gaming it hits about 50c.
 
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Antho694

Antho694

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Mar 12, 2013
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Thanks that guide is helpful.

Now I'm a bit perplexed however. For some reason, I was able to diel the vcore back down to 1.235, ran 10 passes of Intel burn test on very high, and it passed. How could this happen?
Also, my temps seem to be maxing out at 69c now under 100% load. Isn't this a bit high for a liquid setup? My mobo temps are 28c and ambient room temps are 21c.
 
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thor220

thor220

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Dec 15, 2009
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Those temps are pretty normal, even for liquid cooling. You can improve the temps a great deal by deliding the processor. Intel uses cheap thermal paste for most of their processors now and it really hurts thermal performance. Only the E series are soldered.

About the vCore being weird, did you touch any other settings? I also don't know what motherboard and PSU you have. Could have something to do with them.
 
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Antho694

Antho694

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Mar 12, 2013
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Heres my system:

I5-3570k(4.1gHz)
Gigabyte GA-Z77x-D3H Motherboard
Saphire Vapor-X 7950 Boost
8 gig G.Skill DDR3 ram
Samsung 840 128gig SSD
WD Black 1tb HDD
Rosewill Tachyon 550w 80 Plus Platinum

And the only thing I touched was the frequency and vcore. Should I be shutting off any of the other settings?
 
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Antho694

Antho694

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Mar 12, 2013
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So I'm following the guide, turned all power saving settings off and set my offset to +0.005v. However, now every time I start up, my vcore seems to skyrocket up to 1.3v. I have load line calibration set to low (there's no percentage settings on my mobo), vcore set to normal, and offset at +0.005. Is there something else that needs to be turned off?
 
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thor220

thor220

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Dec 15, 2009
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There should also be a turbo voltage as well which should be set to manual It shouldn't be applying that much voltage. Load line calibration could also be the culprit. It deals with increasing the voltage when the CPU goes under load. I don't know what settings your motherboard has for this but try fiddling with that.
 
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