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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 2117

post #21161 of 38701
New Unigine benchmark ran:



i7-3820@ 4.625v

Samsung 30nm 16gb (4x4gb) @ 2000mhz 9-9-9-24 1T @ 1.6v

2x Gigabyte Windforce 7950 @ 1220/1630 @ 1218mV
post #21162 of 38701
Im noticing that running using afterburner i have the unlock voltage checked in the settings but something isn't right. i tried a simple just guessing bump from 1125 to 1150mv and throwing the clock up to 1200mhz, hitting apply and it says it is changed, open gpuz and it says the correct 1200mhz clock, but i tried to run a benchie (new 3dmark) but everytime the bench ends the card has returned to the default 1125mv and back down to 1100mhz.

Am i missing something?

Im gonna run the new heaven 4.0 right now and keep bumping my clock up from 1100mhz until it crashes or i see artifacts, see where my max stock voltage clock is.
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post #21163 of 38701
afterburner is only letting me go to 1100mhz, anytime i dial it higher it accepts it then reverts back to 1100 when i load a game or a bench. i cant change same with voltage, always reverts back to 1125mv no matter how small a bump i try to give it.

btw, hwmonitor says my voltage is .950 to 1.250, afterburner says is .806 to 1.250, and gpuz says is .808 to 1.211, i dont know which one to believe.

my temps aren't getting any higher than 63c(68f room temp)
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post #21164 of 38701
Quote:
Originally Posted by Snuckie7 View Post

My 7950 has ridiculous vDroop in demanding games -- nearly 900mV in Far Cry 3. I'm shocked that my GPU manages to stay stable at 1150/1500 with vActual around 1.010V, but is such a large drop normal?

Do you realize 900mV is 0.9V? It can't have that much VDroop lol
Or you are running your GPU at 1.9V by some miracle biggrin.gif
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post #21165 of 38701
Quote:
Originally Posted by Stige View Post

Do you realize 900mV is 0.9V? It can't have that much VDroop lol
Or you are running your GPU at 1.9V by some miracle biggrin.gif

Sorry typo, meant 90mV
post #21166 of 38701
You must have extremely high ASIC quality then... Right? You're one of the few lucky dudes. 1150Mhz with only 1.010...

Do you play Battlefield 3 without problem?

But if your default voltage is 1.093, then you must have below 75% ASIC which probably means 1150Mhz with only 1.010 is not possible to be 100% stable.
Edited by Deo Domuique - 2/15/13 at 12:05am
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post #21167 of 38701
Quote:
Originally Posted by Deo Domuique View Post

You must have extremely high ASIC quality then... Right? You're one of the few lucky dudes. 1150Mhz with only 1.010...

Do you play Battlefield 3 without problem?

But if your default voltage is 1.093, then you must have below 75% ASIC which probably means 1150Mhz with only 1.010 is not possible.

My ASIC quality is indeed pretty high -- it's 89.7%

The default voltage the card shipped at was actually .949V, so it's running overvolted right now actually.

Battlefield 3 runs flawlessly too.
post #21168 of 38701
Quote:
Originally Posted by jdm317 View Post

I have used the same card. The only successful way I found to change voltage is with Trixx 4.4b. Nothing else effects voltage. Pretty sure others on these forums will suggest the same thing. I was very frustrated, but trixx 4.4b came through for me.


edit: No other version of trixx has worked, and 4.6 seems to give problems.If its the blue pcb, AB doesn't work, even using the unofficial unlock method is useless.

I cannot find Trixx 4.4B anywhere. Do you know where I can find it? It's not available on the website. It would at least be nice to lower the voltage, 1.256v is a bit high for me.
post #21169 of 38701
lol i cant run at 1150mhz without putting the core to 1.28
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post #21170 of 38701
Quote:
Originally Posted by Snuckie7 View Post

I think you just got a dud as far as overclocking goes. Most 7900 cards can easily hit 1150 on the core.

It can actually successfully pass a 3DMark11 run @ 1150, but it crashed once in BF3 - the temps were quite high though, around 70c. Even then, it was ridiculously loud.

Quote:
Originally Posted by SonDa5 View Post

Sounds like a total dud.


What is the ASIC score?


My HD7950 tops out around 1375mhz on the core for 3dmark11 benchmarks on water with ASIC score of 89%

It has an ASIC score of 65.1%. It this below average?
Quote:
Originally Posted by DUpgrade View Post

Which card did you get as there's a lot of 7970s and brands. If it's ASUS that would probably explain the problem. As far as I know most use MSI, HIS, Gigabyte, and Sapphire (there may be more but these are key players). Most 7950 and 7970 do at least 1150 without an issue.

It's a Sapphire Dual X 7970.
Quote:
Originally Posted by saber101 View Post

you got dud, as tiny tom logan always says picking a card is like a silicon lottery.
even my sapphire can get past 1150
anyway i thought the sapphire 7970 has a high stock voltage due to the fact it has its voltage locked

It would at least be nice to drop the voltage - it gets hot quick and therefore very loud.


I don't know what to do now. Would you guys return it? It has passed 3Dmark11 with 1130,1140, and 1150 clocks - if I can get this 100% stable would you consider it a decent enough compromise? Or return it and try my luck with a Vapor-X version, which is hopefully better binned?

I don't want to go without a GPU if the performance gained from the extra overclock is negligible, but then again, I have seen people hitting the mid 1200's and that is potentially an extra mhz I could get. My biggest problem is the high stock voltage, therefore this card is always going to be loud. I wish I could reduce it and get the heat down. Should I stop dreaming, and just game, or return it and try my luck again?

I have been particularly unlucky with my new build, as the 7970 has coil whine, and my new Seasonic x650 has the most ear piercing high-pitch coil whine frown.gif

rolleyes.gif
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