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i72600k OC [help wanted]

post #1 of 17
Thread Starter 
Hi i do not want to run vcore at a constant high voltage
so i have vcore set to normal and it raises up to 1.5v at 4.6ghz
i was wondering how to limit the vcore
Edited by Chaython - 3/22/13 at 2:18pm
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post #2 of 17
Thread Starter 
see before i kept it always set at 1.35v buti would like to have it lower on idle but auto etcwill go past 1.4 even up to 1.7 on auto o.o
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post #3 of 17
You need to set an offset - that'll let it change up and down as the frequency changes. Should be an option in the BIOS to set either a fixed or an offset voltage (or Auto, although sometimes for that you select offset and then Auto). In any case, switch to offset and then put in a small positive offset (like +0.005 or +0.01) and then boot up. Put a load on the system and compare the voltage you are getting (read with CPU-Z) with what you needed when you had a fixed voltage , so in your case 1.35V. Then go back and adjust the offset so the voltages match. So if +0.01 offset gave you 1.34V under load, you'd change the offset to +0.02 instead, which should make your final voltage 1.35V again.
post #4 of 17
Thread Starter 
but i dnt want to sit at a 1.35 when idle was point in this
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post #5 of 17
That's why you need to use an offset, so it doesn't sit at 1.35 at idle. With a fixed voltage, it will.
post #6 of 17
There are some guides on ocn to help you overclock your chip with your motherboard, I have included on here for you to refer to might have some different information than other guides.
http://www.overclock3d.net/reviews/cpu_mainboard/gigabyte_z77_overclocking_guide/1
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post #7 of 17
Thread Starter 
Quote:
Originally Posted by Forceman View Post

That's why you need to use an offset, so it doesn't sit at 1.35 at idle. With a fixed voltage, it will.
but in order to use the offset the board must be on the "normal" setting which seems to do the same as auto just jumping about and then the offset makes it go farther then it jumps about when on load
so on actual auto with no of set as its only an option on normal it would jump to 1.7v
with offset off it would jump to 1.5 randomly and then on load would add the amount specified
with both set to normal the cpu stays under 1.5 but thats still to high
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post #8 of 17
Set +offset to something like 0.030v and do a modest overclock, maybe 4.5Ghz - and measure temps/voltage using RealTemp/HWInfo64 and CPU-Z. Try and keep voltage to under 1.35 - 1.4v under load using Prime95 and Intel Burn Test.

Then lower the voltage while keeping speed/stability. This will give you a baseline for "minimum" overclock/voltage. Then work your way up from there 5Ghz or 1.4v under 75C or whatever comes first

This way under normal use the voltage will be around 0.9v and give you a bit more CPU life in the long run.

This is how I overclock anyways tongue.gif
Edited by jerrolds - 3/23/13 at 11:34am
post #9 of 17
My offset is around 0.030v, on load total draw is 1.38 for 4.5GHz 24/7, it still downclocks to 1.6GHz and sips power most of the time. This never happened when I had a fixed voltage, even 1.6GHz was drawing 1.38. There are plenty of guide on OCN thumb.gif
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post #10 of 17
Quote:
Originally Posted by Chaython View Post

but in order to use the offset the board must be on the "normal" setting which seems to do the same as auto just jumping about and then the offset makes it go farther then it jumps about when on load
so on actual auto with no of set as its only an option on normal it would jump to 1.7v
with offset off it would jump to 1.5 randomly and then on load would add the amount specified
with both set to normal the cpu stays under 1.5 but thats still to high

Okay, I see the confusion. There should be away to change your voltage to offset mode and then specify an offset. I think Gigabyte calls it Dynamic Voltage or DVID. Normal is probably just offset with an Auto offset, that's how most boards do it - so look for somewhere to change from Normal or Auto to an actual number.

Edit: Should be under M.I.T - Advanced Voltage Control - CPU Core Voltage Control. Maybe post a screenshot of that page if you can't find it, the manual doesn't show the options there.
Edited by Forceman - 3/23/13 at 1:11pm
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