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2500k @ 1.44v, LLC or not?

post #1 of 14
Thread Starter 
I want to know which would be better at preventing degradation.

With LLC (fixed voltage) I get 1.44v load, 1.37v idle

Without LLC (offset voltage) I get 1.44v load, 1.020v idle HOWEVER the volts go up to 1.49v at light load.

With LLC (offset voltage) I get 1.48v load... even with offset at its lowest. 1.020 idle

Using speedstep and C1E, c3 disabled, c6 disabled.

Also, I turn my computer off when i leave the house or sleep.
Edited by Scorpion667 - 5/31/11 at 10:30pm
    
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post #2 of 14
Ok something's wrong.

With OR without LLC, you should get the SAME voltage at idle, since you are using C1E, you should be anywhere between 1v to 1.15v. But sounds like that's not happening.

That's a Biostar board, so I'm not exactly surprised at such buggy bioses.
It looks like C1E isn't working if you have LLC enabled. Turning on LLC when using C1E/offsets should theoretically make your "light load" and full load voltages closer to each other, as vdroop is reduced (although you have to tweak your offsets compared to LLC off).

Without LLC, everything seems normal; you're going to have a higher vcore at light load than at full load since you will have vdroop; the higher the load, the more you have. Same thing will happen if you use a fixed voltage without offsets or C1E.

With LLC, it looks like your board disables C1E iinappropriately, and vrises at load. What's the vcore at light load?

BTW on gigabyte's newer bioses, you can't even use offsets with the ten multi step LLC levels, forcing you to use offsets without LLC...which give you a high light load voltage...the older bioses with two levels of LLC were fine...
Edited by Falkentyne - 5/31/11 at 9:37pm
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post #3 of 14
Quote:
Originally Posted by Scorpion667 View Post
I want to know which would be better at preventing degradation.

With LLC I get 1.44v load, 1.37v idle

Without LLC I get 1.44v load, 1.020v idle HOWEVER the volts go up to 1.49v at light load.

Using speedstep and C1E, c3 disabled, c6 disabled.

Also, I turn my computer off when i leave the house or sleep.
id like to know this as well...as i recently changed my stuff and turned off LLC and set vcore to offset

ive noticed that after restart my vcore is at like 1.360+...but it settles down to like 1.040 @ idle and it sits about 1.304v under load...btw thats all with LLC off and offset of +.040
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post #4 of 14
Thread Starter 
Quote:
Originally Posted by Falkentyne View Post
Ok something's wrong.

With OR without LLC, you should get the SAME voltage at idle, since you are using C1E, you should be anywhere between 1v to 1.15v. But sounds like that's not happening.

That's a Biostar board, so I'm not exactly surprised at such buggy bioses.
It looks like C1E isn't working if you have LLC enabled. Turning on LLC when using C1E/offsets should theoretically make your "light load" and full load voltages closer to each other, as vdroop is reduced (although you have to tweak your offsets compared to LLC off).
Yes c1e does not kick in with LLC enabled on this Biostar board unless using offset voltage.
However when using offset + LLC, it actually doubles the ammount of LLC, resulting in +0.1v as opposed to +0.05v

I guess what I'm trying to ask is, isn't 1.49v at light load wayyyy too much? i only need 1.44v for stability..
Edited by Scorpion667 - 5/31/11 at 10:03pm
    
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post #5 of 14
Oh, I thought he was using offsets. I was under the impression that in order to downvolt at idle, you HAD to use offsets.
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post #6 of 14
Thread Starter 
Yea but if I use offset at its lowest (+0.00v) and LLC, I get 1.48v load.... i only need 1.44v for stability

I guess that's the limitation of this board sigh

So I have to settle between:

Fixed Voltage + LLC ( 1.37v idle, 1.44v load)

and

Offset Voltage + c1e (1.020 idle, 1.43v load, 1.49v light load)

I really am pidgeonholed into used fixed + LLC I feel, 1.49v at light load is redic for 24/7 considering MOST load is light
Edited by Scorpion667 - 5/31/11 at 10:32pm
    
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post #7 of 14
Thread Starter 
bump, still need help choosing
    
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post #8 of 14
Quote:
Originally Posted by Scorpion667 View Post
bump, still need help choosing
Run some short bursts of OCCT linpak, like 10 mins worth.
Make sure to graph the results.

Your fluctuations don't seem normal.
This is what I get get using +offset/H LLC/C1E+EIST.

Attachment 213753
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post #9 of 14
Thread Starter 
Quote:
Originally Posted by grunion View Post
Run some short bursts of OCCT linpak, like 10 mins worth.
Make sure to graph the results.

Your fluctuations don't seem normal.
This is what I get get using +offset/H LLC/C1E+EIST.

Attachment 213753
The voltage is very stable during heavy load. It's only light load like browsing ocn that voltage shoots up to 1.49v when using offset + no llc. It's just vdroop. Not really an issue, just need some help picking the least invasive voltage options to delay decaying for as long as possible.
    
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post #10 of 14
Quote:
Originally Posted by Scorpion667 View Post
The voltage is very stable during heavy load. It's only light load like browsing ocn that voltage shoots up to 1.49v when using offset. It's just vdroop. Not really an issue, just need some help picking the least invasive voltage options to delay decaying for as long as possible.
That's normal, you can see the spikes in mine.
I'll gladly take the spikes any day over a forced constant voltage, same concept as gpu clocks/voltages jumping around.

Not to mention I'm stable at a lower voltage using offset and llc.
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