Oc'ing 3770k 4.4ghz, offset voltage question

black9white

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Aug 5, 2012
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Hi guys, just a frequent lurker here in the forums, new to overclocking.

anyways i have oc'ed my 3770k to 4.4ghz

got my manual voltage at stable which is : 1.230v
and VID shows : 1.2410

so if i subtract that to the common formula use in offset, because i want to use offset voltage to save power

i get (-)0.011, however its very unstable when i log in to the os so i tried other numbers (+) which gets to 1.230v.

I finally got to (+)0.080 with

ASUS MOTHERBOARD (DIGI+ Powercontrol)

LLC: Auto
voltage freq: manual
Fixed Frequency :300
power phase control: Optimized
Power duty control: T Probe
CPU Current Capability : 100%

so it was stable wise prime 95 and IBT

but what i noticed is that my voltage isn't stable


idle: 0.8-0.9
Prime95 Load : 1.232
those are fine
but normal opening of programs, moving windows,just random things my vcore shoots upto 1.288-1.296v


is this normal?
i would just want it be at exact 2.32v and while idle 0.8-.09 did i miss a setting? or did i do something silly biggrin.gif?

thanks in advance

edit:
I tried other numbers and settings
+0.050
llc: high
same settings as above

and the voltage instabilty is still there it shoot ups to 1.28 when doing simple task like moving windows
 
Solution


LLC is what you'll need to play with to zero it in. Different board makers have different ways of doing it though, so I can't give you exact settings since I've not be using Asus recently.

Its a normal phenomenon with computers. As the load increases, the voltage drops. Thus why when doing simple stuff vcore is at 1.29ish, and drops to 1.232v in Prime95.

Typcially what LLC does is increase voltage to compensate for the drop, but you...

natedawg72

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Oct 15, 2012
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LLC is what you'll need to play with to zero it in. Different board makers have different ways of doing it though, so I can't give you exact settings since I've not be using Asus recently.

Its a normal phenomenon with computers. As the load increases, the voltage drops. Thus why when doing simple stuff vcore is at 1.29ish, and drops to 1.232v in Prime95.

Typcially what LLC does is increase voltage to compensate for the drop, but you might end up with higher idle/load low voltages (which is what you are experiencing). The gigabyte boards I have used had a LLC setting that would lock in the voltage to a much narrower range, but my Asus board doesn't seem to have a comparable setting.
 
Solution

black9white

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Aug 5, 2012
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yea i think its something to do with llc or with other settings here is a ss of the bios page of the llc:

P4051984.jpg
 

natedawg72

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Oct 15, 2012
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Try a low/medium LLC setting and do some tests, record your voltage, and then repeat the same thing at a higher LLC setting than what you currently have (extreme? not sure whats above high).

You'll need to just do trial and error and figure out which LLC setting works best. All your other settings look fine as far as I can tell.
 

black9white

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Aug 5, 2012
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alright thanks alot, i thought i just had some silly mistakes or things maybe my psu is failing lol

good to know its common :)