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Old 10-29-08   #11 (permalink)
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double post. sorry

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Old 10-29-08   #12 (permalink)
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LLC is less than ideal for any CPU.

However, my ASUS borad has about double the vdroop specified by Intel, so to get a steady 1.28v (load) going to my CPU I'd have to set it to about 1.45v without LLC. Both of my P5Q-Ds are like this, so I don't think it's a fluke.

In my case, LLC is the lesser of two evils.

Quote:
Originally Posted by spacegoast View Post
Has anyone on this forum had a chip go bad from LLC being enabled? I haven't heard of anyone having problems with the 45nm cpu's and LLC here.
LLC itself won't kill anything. However, it makes people feel overconfident about setting a potentially unsafe voltage for one's CPU.

The peak voltage your chip recieves when you set 1.3625v with LLC on, or 1.45v with LLC off, is probably very similar.
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Old 10-29-08   #13 (permalink)
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Quote:
Originally Posted by spacegoast View Post
Has anyone on this forum had a chip go bad from LLC being enabled? I haven't heard of anyone having problems with the 45nm cpu's and LLC here.
? See my prior post....
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Old 10-29-08   #14 (permalink)
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Quote:
Originally Posted by Robilar View Post
? See my prior post....
ya i saw it, i posted twice on accident. good thing i dont own a 45nm cpu though. trusty ol q6600 is good for now.

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Old 10-30-08   #15 (permalink)
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Umm maybe I have not watched my vdroop mods enough in the past but I have done several and have never scene a spike go above what the max value I had it set to.

Say I have a chip running at 1.40v in windows. Now without the vdroop mod it would drop to 1.34v under load then would come back up to 1.40v under idle conditions.
Now say I get a vdroop mod that makes the voltage drop to 1.38v under load and at idle returns to 1.40v.

I havnt ever scene it go above what was sat even with a multi meter.

So what are these electical spikes that are being talked about? Sounds like a bad cpu voltage regulation not a vdroop problem.
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Old 10-30-08   #16 (permalink)
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Quote:
Originally Posted by Delphi44 View Post
guess ill stick to pencil mods =)
Quote:
Originally Posted by Marin's Quote
This is not mysterious at all. LLC is a hack introduced by several MB makers to satisfy a market demand...based many clueless OCer's understanding of basic electrical engineering concepts..specifically, the concepts that are behind vdroop in the first place. With LLC enabled, transient voltage spikes when loading and unloading the CPU (games and benchmark programs, specifically) introduce spikes well outside the range of the limits tolerated by 45 nm chips. CPU degradation can be either a quick or slow process, depending on the base Vcore setting of the CPU (which is typically, much higher than VID on overclocked systems). Either way, LLC will rapidly reduce the life of a CPU by introducing massive transient overvolts every time the CPU voltages change in a dramatic way (gaming, for instance). All the MB makers did was to formally introduce a way to implement the infamous 'vdroop pencil mod' into the BIOS, requiring the clueless user to actually do it himself. So, the warning about LLC (and vdroop mods) has been there for a long time. If you burned your CPU using it...it is your fault. Caveat emptor.
Vdroop mods aren't any better.
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Old 10-31-08   #17 (permalink)
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Quote:
Originally Posted by mrtn400 View Post
Vdroop mods aren't any better.
Have you or anyone else scene these voltage spikes?

Not trying to be a ahole just wondering if anyone has scene these on multimeters or voltage monitoring software.
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Old 10-31-08   #18 (permalink)
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Quote:
Originally Posted by MADMAX22 View Post
Have you or anyone else scene these voltage spikes?

Not trying to be a ahole just wondering if anyone has scene these on multimeters or voltage monitoring software.
Nope, I'm just basing that off the article.

Though I probably wouldn't do any pencil mod on a 45nm unless I studied it with a multimeter for a long time.
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Old 11-01-08   #19 (permalink)
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Your multimeter probably isn't good enough to pick up a voltage spike that brief.
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Old 11-01-08   #20 (permalink)
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Read this http://www.hardwarecanucks.com/forum...review-14.html there is hardly any "vboost"...
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