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How can I reduce vcore?

post #1 of 9
Thread Starter 
Currently I'm at 4.4ghz @ 1.325, with LLC @ 5 (out of 10). Bios is reading my vcore around 1.35 or 1.36. I've never fooled around with any other voltages, QPI and PLL are on auto, PLL overvoltage enabled. My system is fully stable, but if I drop vcore by one notch IBT will fail second pass. Reading other people's voltages, I feel like mine is way high for the clock speed I'm at, but honestly I have only just started overclocking and I'm not confident messing around with my other voltages without some advice.

*edit* Reducing LLC even to 4 results in instability as well.
Edited by flyingsaucers - 6/1/11 at 7:43am
post #2 of 9
How are your temps when running IBT?
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post #3 of 9
Thread Starter 
Quote:
Originally Posted by Valafar View Post
How are your temps when running IBT?
low-mid 80's for IBT. Prime95 temps stay in the high 60s, rarely hitting 70.
post #4 of 9
As long as temps are good, which yours are, I wouldn't worry to much about it. I run my LLC at 100% on my board because I seem to have some epic vdroop going on without it. Your vcore voltage looks fine to me. Every chip is going to be a bit different in terms of what it needs to reach a certain speed.
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post #5 of 9
Thread Starter 
Quote:
Originally Posted by Valafar View Post
As long as temps are good, which yours are, I wouldn't worry to much about it. I run my LLC at 100% on my board because I seem to have some epic vdroop going on without it. Your vcore voltage looks fine to me. Every chip is going to be a bit different in terms of what it needs to reach a certain speed.
Cool, thanks for the reassurance. Reading some of these threads I see posters running @ 4.5 with ridic. low vcores and it makes me think... O_o

But yeah, temps are good so I guess it's all good.
post #6 of 9
Yeah I wouldn't worry about it, chips are all different and require different amounts of vcore. In addition you don't know how how accurate the vcore measurement is, that's why the ultra overclocking boards like the x58a-oc, r3e etc all have easy voltage measurement points so that you can use a calibrated voltage measurer (dmm) to know exactly what it is.

Also you can sometimes see someone else's voltages and think yours aren't as good, but theirs aren't always subjected to the same kind of stress tests and may just be for validations.
     
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post #7 of 9
Thread Starter 
Quote:
Originally Posted by stren View Post
Yeah I wouldn't worry about it, chips are all different and require different amounts of vcore. In addition you don't know how how accurate the vcore measurement is, that's why the ultra overclocking boards like the x58a-oc, r3e etc all have easy voltage measurement points so that you can use a calibrated voltage measurer (dmm) to know exactly what it is.

Also you can sometimes see someone else's voltages and think yours aren't as good, but theirs aren't always subjected to the same kind of stress tests and may just be for validations.
Yeah, I get so many different vcore readings, between what it's set to in BIOS, what it actually reads in BIOS, and CPUID in Windows. I am curious though about how tweaking QPI and PLL voltages can mitigate vcore. For instance, if you bump up your QPI, might that allow you to drop down your vcore a notch or two? I've read some threads that seemed to suggest that.

Thanks for the input, guys. +Rep for yous
post #8 of 9
There might be cases where you're on the edge of stability and that might happen for certain cases, I bet however you wouldn't pass every stability test. In addition you're generating more heat with more voltage and heat affects your stability margin. To me they feel relatively independent, usually I fine tune my cpu overclock and my memory overclock independently and then put them together, once together though you often have to back off one or the other or bump vcore/vqpi as needed.
     
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post #9 of 9
Thread Starter 
Quote:
Originally Posted by stren View Post
There might be cases where you're on the edge of stability and that might happen for certain cases, I bet however you wouldn't pass every stability test. In addition you're generating more heat with more voltage and heat affects your stability margin. To me they feel relatively independent, usually I fine tune my cpu overclock and my memory overclock independently and then put them together, once together though you often have to back off one or the other or bump vcore/vqpi as needed.
I'm confused. What might happen? The different vcore readings? I get that in HWMonitor, no matter what, even at stock settings. The higher I up LLC, the more drastic the fluctuation. Is there something strange about that? My current OC is as stable as can be; 12 hours Prime, 20 passes of IBT (w. avx), over 4 days of folding and 2+ weeks of 5 hours+ gaming sessions without crashing. Incidentally, is there a better alternative to HWMonitor? I have the Sandy Bridge Reviewers Kit and I find the mislabels and misprints irritating.
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