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post #3131 of 28134
I get huge increase in performance once I dropped the memory to -500. With the fan fixed at 68 and an offset of +100 I can now get high core OC. Card will run between 1.175 - 1.200. Usually it is above 1.175 for 1189mhz, even if the power % is in the low 90%.


When I set to -200 on the memory the volts drop to 1.150 at times and rarely hit 1.200 with the same offset.


You guys need to try this, before I was getting an OC of about 70mhz less with the same offset. Still have not found the happy medium for the memory drop but is somewhere between -500 to -200.

Also, fan at 70% fixed lowers core clock and volts.

I bet I can now break 1200mhz easy....

Someone try this and report back!
post #3132 of 28134
Quote:
Originally Posted by Alatar View Post

Unless my card normally throttles at way below 265W the 114% BIOS definitely helped me gain a lot of extra MHz and also lots of points in 3dm11. Can't remember the difference right now but it was very significant.

I'm really not sure what it is, an overall power limit is about the only thing i can think of.
Quote:
Originally Posted by SAN-NAS View Post

I get huge increase in performance once I dropped the memory to -500. With the fan fixed at 68 and an offset of +100 I can now get high core OC. Card will run between 1.175 - 1.200. Usually it is above 1.175 for 1189mhz, even if the power % is in the low 90%.


When I set to -200 on the memory the volts drop to 1.150 at times and rarely hit 1.200 with the same offset.


You guys need to try this, before I was getting an OC of about 70mhz less with the same offset. Still have not found the happy medium for the memory drop but is somewhere between -500 to -200.

Also, fan at 70% fixed lowers core clock and volts.

I bet I can now break 1200mhz easy....

Someone try this and report back!

I did find similar, lower memory clock allowed higher, more steady core clock. But the scores were worse, for me it's about the score more than the clocks.
Edited by FtW 420 - 3/8/13 at 4:05pm
    
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post #3133 of 28134
Quote:
Originally Posted by SAN-NAS View Post

I get huge increase in performance once I dropped the memory to -500. With the fan fixed at 68 and an offset of +100 I can now get high core OC. Card will run between 1.175 - 1.200. Usually it is above 1.175 for 1189mhz, even if the power % is in the low 90%.


When I set to -200 on the memory the volts drop to 1.150 at times and rarely hit 1.200 with the same offset.


You guys need to try this, before I was getting an OC of about 70mhz less with the same offset. Still have not found the happy medium for the memory drop but is somewhere between -500 to -200.

Also, fan at 70% fixed lowers core clock and volts.

I bet I can now break 1200mhz easy....

Someone try this and report back!
We shouldn't have to downclock VRAM to get a stable overclock on a $1000+ "enthusiast" gpu... I think we need new drivers and a bios with a different power distribution/limits code. Hmmmm, maybe eliminate fan wattage draw from the total TDP calculation?
Edited by RJT - 3/8/13 at 4:24pm
post #3134 of 28134
Scores are worse. Every bit of joy seems to be matched with as much frustration!

This reminds me of Apollo 13 where if you give too much of one or the other you go over your volts...maybe its new nickname should be Apollo
post #3135 of 28134
Quote:
Originally Posted by SAN-NAS View Post

I get huge increase in performance once I dropped the memory to -500. With the fan fixed at 68 and an offset of +100 I can now get high core OC. Card will run between 1.175 - 1.200. Usually it is above 1.175 for 1189mhz, even if the power % is in the low 90%.


When I set to -200 on the memory the volts drop to 1.150 at times and rarely hit 1.200 with the same offset.


You guys need to try this, before I was getting an OC of about 70mhz less with the same offset. Still have not found the happy medium for the memory drop but is somewhere between -500 to -200.

Also, fan at 70% fixed lowers core clock and volts.

I bet I can now break 1200mhz easy....

Someone try this and report back!

+100mhz:



+100mhz and -200mhz memory:



Didn't do anything for me except gimp my valley score. Does seem to let me hang out at 1.2v much of the time.
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post #3136 of 28134
Well we know that the cards are capable of 1.2V sustained if the stupid bios/drivers would get out of the way and let us enjoy our cards! Its not like 1.2V is that much anyway (I regularly run 1.381V on my 7970's)....
post #3137 of 28134
Attempting to OC my monitors to 61Hz failed! Does it even work with surround?
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post #3138 of 28134
I just received a response from my ticket from EVGA.
Quote:
Hello Joseph,

Nvidia is aware of these throttling issues. I have fowarded your issue to our Product Management team that is working with Nvidia to try and resolve this issue. If you have any questions or concerns, please contact us via email or by telephone.

Best Regards,

EVGA
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post #3139 of 28134
And I just sold my 4X 7970 in the last 2 days. Not sure I made a good move anymore... mad.gif

Nvidia and that RMA paranoia... rolleyes.gif
    
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post #3140 of 28134
Quote:
Originally Posted by virus86 View Post

Attempting to OC my monitors to 61Hz failed! Does it even work with surround?

Try them separately and save the custom res so you can select it for each, see if that works.

Quote:
Originally Posted by BababooeyHTJ View Post

I just received a response from my ticket from EVGA.

Interesting, not sure this will be bios updatable but if it was it would be nice, that said the cards still play real nice, if I wasnt watching clock speeds in game I wouldnt know they were throttling a little bit. I'm not using overvoltage though SLI at stock 1045MHz is fine for me right now!
Quote:
Originally Posted by Levesque View Post

And I just sold my 4X 7970 in the last 2 days. Not sure I made a good move anymore... mad.gif

Nvidia and that RMA paranoia... rolleyes.gif

The cards still play really nice, plenty of power and as I said just above, if I wasnt looking at the clocks with the OSD I wouldnt know they were throttling a little.
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