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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 149

post #1481 of 38701
Quote:
Originally Posted by Newbie2009 View Post

Why 2 exactly?

Same as having +20% Power slider. No different.

Quote:
Originally Posted by dajez View Post

What does that ASIC quality mean actually? Mine is 85.6% btw.

85% is great, what are your max clocks?
It's the quality of the thing that handles the voltage.
Electrical leakage the chips produce.
Edited by Denim-187 - 1/21/12 at 6:17am
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post #1482 of 38701
Quote:
Originally Posted by Denim-187 View Post

Same as having +20% Power slider. No different.
85% is great, what are your max clocks?
It's the quality of the thing that handles the voltage.
Electrical leakage the chips produce.

Powertune is not a power saving feature. Putting to 2 disables power saving, eg no idle clocks. If you are overvolting, powertune is not used. It is one or the other. Powertune has nothing to do with 1 or 2 in AB.
post #1483 of 38701
Quote:
Originally Posted by Newbie2009 View Post

Powertune is not a power saving feature. Putting to 2 disables power saving, eg no idle clocks. If you are overvolting, powertune is not used. It is one or the other. Powertune has nothing to do with 1 or 2 in AB.

1.
Powertune gives the card higher TDP.
2 in AB gives the card higher TDP.

2.
There are idle clocks with 2 in use.

buttkick.gif
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post #1484 of 38701
Card 1 - 73.7% Quality
Card 2 - 84.4% Quality

Gonna do some comparisons later to see if this effects anything. If this is voltage leak, would it fix it to just add more voltage?
    
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post #1485 of 38701
Quote:
Originally Posted by Denim-187 View Post

1.
Powertune gives the card higher TDP.
2 in AB gives the card higher TDP.
2.
There are idle clocks with 2 in use.
buttkick.gif

Powertune does not give the card a higher TDP and you should really keep bad advice to yourself.
Powertune manages programs which would normally exceed the TDP in a way which keeps performance up rather than drastically downclocking and taking a major hit in performance.
This is Official overclocking, within TDP limits.

Unofficial overclocking, hence the name is unofficial and goes over the TDP and can damage the card, so it is not covered by warranty.
Increasing the voltage of cards is not allowed with official overclocking, to keep within the TDP limits.
If you overvolt with AB or trixx, powertune is irrelevant.

Not only are you wrong, you are spreading bad advice to other forum members, which is unacceptable.

PowerTune_whitepaper_WEB.pdf 539k .pdf file
Edited by Newbie2009 - 1/21/12 at 7:01am
post #1486 of 38701
Ok so as asked before, I set the unnoficial overclocking mode to "2", but now am idling at 53c on my second card, which isn't even doing anything. Setting back to "1" doesn't help.

Is there any way to fix this?
    
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post #1487 of 38701
Quote:
Originally Posted by snelan View Post

Ok so as asked before, I set the unnoficial overclocking mode to "2", but now am idling at 53c on my second card, which isn't even doing anything. Setting back to "1" doesn't help.
Is there any way to fix this?

Never used 2 so my best guess is to uninstall MSI afterburner reboot and reinstall and set to 1.
post #1488 of 38701
Quote:
Originally Posted by dajez View Post

What does that ASIC quality mean actually? Mine is 85.6% btw.

ASIC = core
Better quality means less power leakage
Chip with less power leakage needs lower voltage for proper work
Probably this means better overclockability

My Powercolor 7970 has 82.9% asic quality thus VID 1.05V

below are 4 VIDs used on Radeons 7970

up to 2F90 (up to 75% quality) - 1.1750V
up to 34D0 (up to 80% quality) - 1.1125V
up to 3820 (up to 85% quality) - 1.0500V
up to 3A90 (up to 90% quality) - 1.0250V

Your VID is 1.0250V?


You can get asic quality from GPU-Z 0.5.8 or by reading register 174 using MSI Afterburner.
I get 3500h -> 13568
full 100% is 16384
13568/16384 = 0,828125
Edited by lothar - 1/21/12 at 7:10am
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post #1489 of 38701
Quote:
Originally Posted by lothar View Post

ASIC = core
Better quality means less power leakage
Chip with less power leakage needs lower voltage for proper work
Probably this means better overclockability
My Powercolor 7970 has 82.9% asic quality thus VID 1.05V
below are 4 VIDs used on Radeons 7970
up to 2F90 (up to 75% quality) - 1.1750V
up to 34D0 (up to 80% quality) - 1.1125V
up to 3820 (up to 85% quality) - 1.0500V
up to 3A90 (up to 90% quality) - 1.0250V
Your VID is 1.0250V?
You can get asic quality from GPU-Z 0.5.8 or by reading register 174 using MSI Afterburner.
I get 3500h -> 13568
full 100% is 16384
13568/16384 = 0,828125

My GPU IS 70.5% but still a nice overclocker.
post #1490 of 38701
Quote:
Originally Posted by Newbie2009 View Post

My GPU IS 70.5% but still a nice overclocker.

Of course...
ASIC quality is only one thing
Overclocking depends of many factors... cooling, stable power supply, memory and voltage regulators used etc.

I saw that tahiti becomes unstable above 80C no matter which voltage I used... water cooling badly needed
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