i5 4670k overclocking issue

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zadawn

Honorable
Oct 29, 2012
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CPU: i5 4670k
Motherboard : MSI z87-G41
PSU: Seasonic S12II-620 Bronze 620W
Cooler: Thermalright Truespirit 120

I tried overclocking my cpu today to 4.2 Ghz with a range of voltages from 1.150 to 1.220 with no luck. It would BSOD within the first minute of OCCT or Intel Burn Test. HWmonitor shows temps no higher than 60 degrees on all cores during those tests and im getting around 28-30 degrees on stock speeds while browsing the web.

What i think the problem is, is the fact that no matter the vcore im setting in bios, hwmonitor and cpu z shows a much different number.,for example im setting the Vcore to 1.150 and in CPU Z it appears as 0.834 ( just an example but its close to those numbers) and im willing to think that the motherboard does not deliver the Vcore specified in the bios thus the CPU popping a BSOD on me.

Has anybody encountered a similar issue and has any advice?
 
Solution
B
try 1.35 then. if you can't get 4.4 at 1.35, then reduce the overclock and be disappointed that you have a poor overclocker of an i5 (silicon lottery ftw)
you will get a lot more heat this way.
also make sure the voltages are NOT on auto, and set to manual so they don't vary around. there are in depth tutorials on how to do this and i will try to find one for you
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Brantyn Gerik

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Sep 18, 2013
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If you are crashing, but still have thermal headroom, increase the vcore. it sounds like you just have a chip that doesnt like to overclock and will require more on the vcore. 1.300 on the vcore should get you all the way up to 4.4 with acceptable temps, from there just drop the vcore until you get the bsod again, and after you get the bsod, increase the vcore voltage back up to a more optimal setting
 
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Brantyn Gerik

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Sep 18, 2013
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try 1.35 then. if you can't get 4.4 at 1.35, then reduce the overclock and be disappointed that you have a poor overclocker of an i5 (silicon lottery ftw)
you will get a lot more heat this way.
also make sure the voltages are NOT on auto, and set to manual so they don't vary around. there are in depth tutorials on how to do this and i will try to find one for you
 
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Solution
Adroid

Adroid

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Jul 2, 2009
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You need to post your BIOS values for this kind of question.

Did you try disabling all the power saving options? I would start there, and don't use offset voltages or other downclock options until you get stable...
 
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Z

zadawn

Honorable
Oct 29, 2012
11
0
10,510
Voltage mode was on auto, silly me. Managed to get 4.5 Ghz at 1.26 vcore and ran 10 minutes of IXTU and it passed succesfully with temps getting no higher than 71 degrees on any core, it bounced from 63 to 69 and seldom to 71 on thee hottest core. This being with the voltage mode set to adaptive rather than auto. There's also the override option on voltage mode, should i be using that? Even though i set it to 1.26 in the BIOS CPU Z showed a 1.28 vcore.
 
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Brantyn Gerik

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Sep 18, 2013
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Woot!, don't forget to pick a best answer.

and cpu z will not always show the exact voltage as it is a software. (being only .02 volts off is to be expected)

if the adaptive setting is working for you, then use that, as it will reduce strain on your processor when not doing cpu intensive things
 
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Brantyn Gerik

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Sep 18, 2013
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Well glad to hear things worked out for you :) you may even be able to get an even higher overclock considering the state of your temps. for example perhaps you could get 4.6 at 1.3 volts. (this would probably raise max temps above 75 degrees though) You actually have a fairly well overclocking processor if this is the case (see the guy who needs 1.4 volts to get 4.6)
 
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