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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 103

post #1021 of 38701
Quote:
Originally Posted by Arizonian View Post

Ok - some questions.
Seeing that most 7970's regardless of vendor are hitting 1125Mhz Core and for the most part leaving it at stock 1375Mhz Memory. Noticing no voltage bump.
A. What's the stock voltage? Does it vary even for same vendors?
B. Anyone run a 3DMark11 bench on single 1920x1200 resolution monitor? I don't see any in the first page specs. Didn't notice anyone with screen shots of benchmarks with validation.
C. For those running at 1275Mhz Core 1575Mhz Memory what is your voltage set at? Is this a safe 24/7 over clock?
D. Anyone tackle 3D Vision blu-ray or 3D Vision gaming on a 120Hz monitor? Where can I find the info on how to accomplish this with AMD? I've got an expensive Alienware OptX AW2310 monitor and it would really help me make the move back to AMD if I could figure out how to get the 3D Vision going.
Thanks in advance for anyone's assistance. smile.gif

A. AB reports my stock voltage on my ASUS as 1174mv, but ASUS GPU Tweak sees it as 1168mv. On top of that, Sapphire Trixx reports it as 1170mv. At this point I'm not even sure what exact stock VID I have. I've seen other people reporting as low as 1.05v for ASUS cards.

B. I did a run @ 1920x1080, 1120/1650 on memory. Vantage and 11.

C. My card refuses to go over 1120 with reasonable fan profile, no matter the voltage and powertune settings. I suspect it's VRM temperature, or something else is getting too hot, because GPU temp is low 70s. Memory went all the way to 1650 without any problems, and I think I can push it higher. For now I settled for 1120/1650 at 1174mv in AB. I've tried lowering stock VID as other people suggested, but it didn't help. Going from 925 to 1120 on stock volts is not bad by any means, I'm just puzzled it does't respond too well to voltage on air. I'm going to wait and see, maybe there is a workaround to this.

D. As far as I can tell, you can't do 3D with AMD on AW2310. My 3D Vision kit is on vacation for now too. biggrin.gif
post #1022 of 38701
My second number is all 0s using the /rr174 command?

My voltages according to AB using the voltage monitor:

GPU1 Idle: 0.798v
GPU2 Idle: 0.796v

GPU1 Load: 1.097v
GPU2 Load: 1.093v

The actual voltage slider is 1112mv. GPU1 is Sapphire, GPU2 is HIS.
Edited by Tslm - 1/18/12 at 7:38am
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post #1023 of 38701
Quote:
Originally Posted by DimmyK View Post

A. AB reports my stock voltage on my ASUS as 1174mv, but ASUS GPU Tweak sees it as 1168mv. On top of that, Sapphire Trixx reports it as 1170mv. At this point I'm not even sure what exact stock VID I have. I've seen other people reporting as low as 1.05v for ASUS cards.
B. I did a run @ 1920x1080, 1120/1650 on memory. Vantage and 11.
C. My card refuses to go over 1120 with reasonable fan profile, no matter the voltage and powertune settings. I suspect it's VRM temperature, or something else is getting too hot, because GPU temp is low 70s. Memory went all the way to 1650 without any problems, and I think I can push it higher. For now I settled for 1120/1650 at 1174mv in AB. I've tried lowering stock VID as other people suggested, but it didn't help. Going from 925 to 1120 on stock volts is not bad by any means, I'm just puzzled it does't respond too well to voltage on air. I'm going to wait and see, maybe there is a workaround to this.
D. As far as I can tell, you can't do 3D with AMD on AW2310. My 3D Vision kit is on vacation for now too. biggrin.gif

Thanks for the info Dimmy, great info. What was your raw graphic score (not combined total) on the 3DMark11 at 1120/1650 at 1174mv?

Your not the only one who can't over clock past a certain point even with more voltage. Your right the OC from 925 to 1120 is great. The card runs with less power consumption and less heat dissipation.

It seem the 28nm does not respond well to heat in mid 70's. Some are reporting at 61C they crash if pushed further. I'd have thought pushing some voltage even small amounts would allow for slightly higher OC past stock like the 48nm GPU's are able to accomplish. That's just been the rule of thumb.

In retrospect, I'm taking it your have some great idle temps and max throttle temps when you are stable however?
     
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post #1024 of 38701
So I just purchased a Sapphire 7970, upgraded from 5850. I never overclocked my old video card. Two questions for a newbie.
1) What app do I want to use to overclock the 7970?
2) What is a good initial overclock setting for this card to test it out?
post #1025 of 38701
Quote:
Originally Posted by bodean View Post

So I just purchased a Sapphire 7970, upgraded from 5850. I never overclocked my old video card. Two questions for a newbie.
1) What app do I want to use to overclock the 7970?
2) What is a good initial overclock setting for this card to test it out?


Use the latest msi afterburner beta to overclock the card (after enabling unofficial overclocking mode in the .cfg file)

Use a program like Heaven to test your card for stability after overclocking it (or some intensive game like BF3 for a while)

Most people seem to be hitting 1125 core 1500-ish memory without any voltage bump, so thats a good place to start
Edited by dezerteagle323 - 1/18/12 at 7:58am
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post #1026 of 38701
Quote:
Originally Posted by bodean View Post

So I just purchased a Sapphire 7970, upgraded from 5850. I never overclocked my old video card. Two questions for a newbie.
1) What app do I want to use to overclock the 7970?
2) What is a good initial overclock setting for this card to test it out?

With Sapphire you can use SAPPHIRE TriXX or a universal and best overclocking utility MSI Afterburner.

I've been doing some homework being interested myself in the 7970 and looking into the OC capability of this card. Seems 1125 Mhz Core and 1575 Mhz Memory are a great place to end up from stock clocks and without having to apply voltage. Before you apply voltage you should become more familiar with over clocking. Adding voltage to a card can be detrimental if you pass it's safe threshold. Also seems Memory over clocks don't give as much FPS gains more than just raise VRAM temps and may actually hold back the Core over clock one can achieve.

You can download all your Sapphire drivers directly from Sapphire if you've not done so. Good luck and enjoy. thumb.gif

Each cards over clocking capabilities mileage may vary. Some do better than others even from same vendor. You'd have to find your own range.

A good place to see if your over clock is stable is to run through a 3DMark11 Benchmark. If you can get through it your next step is to play a game and see if it holds up without crashing. Choose your most intensive game and max out the settings for best test results.
     
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post #1027 of 38701

Memory Voltage Contol for Reference 7970 - Afterburner 2.2.0 Beta 11


 

MSI Afterburner 2.2.0 Beta 11

 

Added memory voltage control for reference design AMD RADEON 7970 graphics cards with CHL8228 voltage regulators.

 

Select the small button (red arrow) drop down the option to tweak Memory Voltage.

 

Nothing has changed; enable "unoffical overclocking" to have these options HOW TO: Enable UNOFFICIAL overclocking mode in MSI AfterBurner

 

 

629e5b0d_yVs1N.png

 

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post #1028 of 38701
Quote:
Originally Posted by Arizonian View Post

Thanks for the info Dimmy, great info. What was your raw graphic score (not combined total) on the 3DMark11 at 1120/1650 at 1174mv?
Your not the only one who can't over clock past a certain point even with more voltage. Your right the OC from 925 to 1120 is great. The card runs with less power consumption and less heat dissipation.
It seem the 28nm does not respond well to heat in mid 70's. Some are reporting at 61C they crash if pushed further. I'd have thought pushing some voltage even small amounts would allow for slightly higher OC past stock like the 48nm GPU's are able to accomplish. That's just been the rule of thumb.
In retrospect, I'm taking it your have some great idle temps and max throttle temps when you are stable however?

By "raw" you mean "Graphics Score"? 9278

277

Yeah, this card responds differently to voltage increase on air compared to my GTX 580. So I'm sitting tight for now, and keeping my eyes open for possible solution. Temps are very good: sitting at 37C idle (72F ambient) @ 20% (inaudible) fan and typically 70-72C on load with 45-50% fan. Oddly enough, I find the noise signature of 7970 ref cooler under load more pleasant that super-duper twin frozer's III on my 580 Lightning.
Edited by DimmyK - 1/18/12 at 8:07am
post #1029 of 38701
Quote:
Originally Posted by DimmyK View Post

By "raw" you mean "Graphics Score"? 9278
277
Yeah, this card responds differently to voltage increase on air compared to my GTX 580. So I'm sitting tight for now, and keeping my eyes open for possible solution. Temps are very good: sitting at 37C idle (72F ambient) @ 20% (inaudible) fan and typically 70-72C on load with 45-50% fan. Oddly enough, I find the noise signature of 7970 ref cooler under load more pleasant that super-duper twin frozer's III on my 580 Lightning.

Nice score! Even without the extra voltage over clock head room on the 28nm's performance is really impressive.

I like to know the graphic score because everyone's CPU set up is different and is taken into consideration with combined score. The raw graphic score is based solely on the GPU and over clock on the GPU to achieve it.

As for your weird numbers between software from previous post you stated, I'm sure it's only software related catching up with the new cards and will be fixed with newer releases.

Thanks Dimmy. +1 rep for your info and time.
     
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post #1030 of 38701
Quote:
Originally Posted by Ken1649 View Post

Memory Voltage Contol for Reference 7970 - Afterburner 2.2.0 Beta 11
MSI Afterburner 2.2.0 Beta 11

Added memory voltage control for reference design AMD RADEON 7970 graphics cards with CHL8228 voltage regulators.

Select the small button (red arrow) drop down the option to tweak Memory Voltage.

Nothing has changed; enable "unoffical overclocking" to have these options HOW TO: Enable UNOFFICIAL overclocking mode in MSI AfterBurner

600x415px-LL-6cf74b77_629e5b0d_yVs1N.png

Still taps out at 1.3v & 1390 core mad.gif

Anybody using Trixx or Asus utility and if so are as limited as this AB beta ???
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