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6950 voltage monitoring question / problem

post #1 of 8
Thread Starter 
I got a Asus 6950 card ( the reference stock cooler one ) wich i have succesfully moded into 6970 ( 6970 full bios also Asus ) iv also managed to OC it to 940 / 1440 at what i belive is 1.250v ( set with MSI afterburner 2.2.0 b3) however my problem is ( if its even an actual problem or not ) that when i look at the afterburner monitoring it only shows 1.175v max ( since power play is active it fluctuates between 0.900 and 1.175v depending on load ) .

Is it normal for it to show that voltage ? ( instead of the 1.250 i have set )

gpu-z also shows 1.175v ( however it does show my correct OC settings 940 / 1440 )

Also about temps .. with max furmark settings im getting around 73 C max temp ( with the stock cooler reaching about 63% speed - abit loud but i play with headphones so not that big a deal ) i also got 25-26 C room temp and about 48 C idle .

Is that ok for the temps ?
Can i push abit forward ? with the OC , if not , can i lower the max fan speed so that the max temp reaches lets say 85C max ( at lower fan speed thus less noise ) ?

I tried to OC more but anything beyond 950 gets me a black striped screen after 10-15 minutes in furmark ( lasting abit more in games )

Am i setting my voltage in vane ? ( meaning regardless of what i set it still stays at 1.175 thus not allowing me to go forward.
Iv managed to run a full 3dmark11 at 980 with increased points score ( thus i assumed it didnt throttle ) but it still freezes after some time ..
Edited by drotaru - 6/5/11 at 5:18am
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post #2 of 8
Quote:
Originally Posted by drotaru View Post
I got a Asus 6950 card ( the reference stock cooler one ) wich i have succesfully moded into 6970 ( 6970 full bios also Asus ) iv also managed to OC it to 940 / 1440 at what i belive is 1.250v ( set with MSI afterburner 2.2.0 b3) however my problem is ( if its even an actual problem or not ) that when i look at the afterburner monitoring it only shows 1.175v max ( since power play is active it fluctuates between 0.900 and 1.175v depending on load ) .

Is it normal for it to show that voltage ? ( instead of the 1.250 i have set )

gpu-z also shows 1.175v ( however it does show my correct OC settings 940 / 1440 )

Also about temps .. with max furmark settings im getting around 73 C max temp ( with the stock cooler reaching about 63% speed - abit loud but i play with headphones so not that big a deal ) i also got 25-26 C room temp and about 48 C idle .

Is that ok for the temps ?
Can i push abit forward ? with the OC , if not , can i lower the max fan speed so that the max temp reaches lets say 85C max ( at lower fan speed thus less noise ) ?

I tried to OC more but anything beyond 950 gets me a black striped screen after 10-15 minutes in furmark ( lasting abit more in games )

Am i setting my voltage in vane ? ( meaning regardless of what i set it still stays at 1.175 thus not allowing me to go forward.
Iv managed to run a full 3dmark11 at 980 with increased points score ( thus i assumed it didnt throttle ) but it still freezes after some time ..
Looks to me that your actual voltage is 1.175. If you enabled AMD Overdrive under Performance in CCC, it will override Afterburner. You need to disable that in CCC and then afterburner should let you actually run at 1.250.

After you disable the manual settings in AMD Overdrive, I would start with a milder voltage bump. See how far you can go on the core first. I would lower the memory down to 1400 or even 1375 while testing the core. You may get 980 stable on the core with 1.200 volts. You can set a custom fan profile in afterburner. Personally, I wouldn't want my core to get to 85, but that's me. Others say it's fine. The highest I've let mine get is 75 while doing extreme burn in on Kombustor.
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post #3 of 8
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Im embarased to say that the whole problem was because i had left a space between the "=" and the first letter in the phrase you need to enter the afterburner CFG in order for it to unlock the unofficial OC :S
Edited by drotaru - 6/5/11 at 9:12am
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post #4 of 8
Quote:
Originally Posted by drotaru View Post
Im embarased to say that the whole problem was because i had left a space between the "=" and the first letter in the phrase you need to enter the afterburner CFG in order for it to unlock the unofficial OC :S
I have not seen GPU-Z be wrong yet about clocks, voltages, shaders, etc. I'm glad you figured out what the problem was.

That being said, I feel like a broken record saying this, but I hate AfterBurner, and recommend using Racer-X's CCC registry modification with Trixx for voltage.

Your temps are good, but you were at the upper limit as it was. If those are your temps at stock voltage, I wouldn't mess with the voltage unless you change your cooling solution. You should be fine up to ~95-100c, where the old 48xx used to run, but I wouldn't really want to have my card up there for fear of premature failure.
post #5 of 8
Thread Starter 
i have managed to unlock the voltage , however i havent fond that mod everyone's talking about yet :S , furthermore .. whouldnt it be the same thing ? running trixx all the time instead of afterburner ?

i also cant manage to go further than 950 / 1450 with the card , no matter how much voltage i pump into it , also at 1.3v it goes alot hotter ( 90 C with the same fan speed settings in afterburner )
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post #6 of 8
The Racer-X program is here

Trixx does the same thing, but afterburner was just so unreliable for me that I couldn't stand it, especially since I don't need monitoring since it's provided by GPU-Z and coretemp since I've got a G15 keyboard to monitor with those apps.

Sometimes you just can't keep going regardless of the voltage. I can't go past 4.7 on my 2600k. Disappointing, but what are you gonna do? My 6950 goes to 975/1375, at 985 it crashes drivers and my computer goes:

(profanity removed by moderator)
post #7 of 8
Thread Starter 
used the mod ( thanks btw ) restarted , now i cant set anything in Overdrive ... after i hit apply they all go to 0 :S ( and power tune to 0% ) , unfortunately ... Trixx doesnt allow me to change the voltage further than what is set in the card's bios , only afterburner with the Fixed voltage option set allows me to do that ( what exactly does fixed voltage do , except for the obvious part ? does it also set the +2- powertune thing ? )
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post #8 of 8
AB works fine..use it. Typically you will see a +.02 - .04v difference between ; real vs AB set voltage.

*dont forget GPU's are heat sensitive.. If you have a speed you are trying to hit, and voltage doesnt bring stability-> its not ever going to. Your at a temp limit and the core needs to be cooler.

ie-

on stock cooling I can bench my TFIII at 1020mhz with 1.32v, load at 64c - as a max.. more speed is not possible.

on water I can bench 1080mhz with 1.35v [software limit], load at 46c ..more speed needs more voltage
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