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MSI R6950 TF3 PE / OC Freezes at stock clock - Page 4

post #31 of 40
Still it is not right. Try to adjust the Aux Voltage as in that guide.

Edit:

OK. I think this should do the trick.

Edit the BIOS you are using now. Only edit the VID4 to 1.175v. Do not touch other values or it will crash or BSDO.

Also check this thread or use the BIOS in that link http://www.overclock.net/amd-ati/1159688-asus-dcii-6950-a-2.html#post15568801
230747d1317099989-restore-alternate-bios-6950-

Edited by Ken1649 - 11/5/11 at 8:47am
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post #32 of 40
Thread Starter 
GPU registers... is grey and i can't click on it with the BIOS im using. The BIOS linked in the thread from GamerDaPro (http://www.techpowerup.com/vgabios/95911/Asus.HD6970.2048.110106.html) is for a different card / different manufacturer. Won't that cause problems?
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post #33 of 40
sounds like the card isn't getting enough power. either your PSU can't handle it, or you need to bump the voltage.

my 6950TF3 with 6970 shaders runs at 900mhz at 1125v. Anything less and it'll freeze in games and I need to reboot my PC.
post #34 of 40
Thread Starter 
@naizarak: Yes, but I'm sure it's not a PSU problem cause i tried it in a different PC with a 700W+ Corsair PSU and it was the same. With the old (stock) BIOS, the chip only got 1.110V (should be 1.15, dont know why it was locked at that value), with the new one i get 1.149V ,which makes it perfectly stable at 820 MHz. I cant alter the voltage in Afterburner for some reason though.
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post #35 of 40
Quote:
Originally Posted by phisee;15581880 
@naizarak: Yes, but I'm sure it's not a PSU problem cause i tried it in a different PC with a 700W+ Corsair PSU and it was the same. With the old (stock) BIOS, the chip only got 1.110V (should be 1.15, dont know why it was locked at that value), with the new one i get 1.149V ,which makes it perfectly stable at 820 MHz. I cant alter the voltage in Afterburner for some reason though.

i had the same exact problem with afterburner. program showed my card as "Radeon 6900 Series" and I couldn't change voltage.

Updating to latest Catalyst + latest Afterburner fixed it for me.
post #36 of 40
Thread Starter 
The current BIOS on the card aquired from the card with GPU-Z and opened in RBE:

rjm685.png

as you can see, GPU registers is grey and not clickable, but changing it in the BIOS looks like the way to go here.
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post #37 of 40
phisee just in case it helps I also have a TF3 PE/OC 6950 and I unlocked the shaders using the guide in 0razor1's thread.
Afterburner also defaulted to 1.110 core voltage after the flash, I can't remember what it was before but I'm guessing the same (I didn't touch any Afterburner settings before the flash).
When I run Kombustor it shows 1.149 core voltage, Afterburner voltage monitoring also shows 1.149 during Kombustor a run at 900/1400 (temps hover around 71/72 @ 55% fan speed after 10/15 minutes).
I don't have the +20% power control setting in CCC enabled either.
It may just be a bug that Afterburner shows 1.110 even though it's actually running at 1.149 (perhaps only in the Beta 8 version).
There is also the 'graphics processor type' option in Afterburner's settings that allows you to choose between 1100 and 1150, mine is at 1100 by default and haven't changed it.
I'm also interested in what is the stock voltage of this card but I think it must be 1.149.

I dunno if that helps but I haven't had any crashes or freezes up to 900 / 1400 on the settings mentioned above, I won't push any harder and I won't up the voltage on this card as it seems to be running fine at those speeds (I've been playing BF3 for hours on end).
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post #38 of 40
I see what you mean. I have seen 2 people are successful flashing Asus 6970 DCII to MSI 6950 TFII. http://www.techpowerup.com/vgabios/95911/Asus.HD6970.2048.110106.html


The difference of TFII and TFIII is the cooler or maybe the phase power. I say it is not going to harm in the event it fails because you simply shutdown PC and flip to backup BIOS.

Edit:

May bad. It is not MSI 6950 TFII but Asus 6950 DCII

But could try http://www.techpowerup.com/vgabios/index.php?page=1&architecture=&manufacturer=MSI&model=HD+6970&interface=&memSize=0


And if it still doesn't allow you to edit VID4, it means it doesn't have voltage control and is using different volterra voltage regulators from the reference 6950

...
Edited by Ken1649 - 11/5/11 at 11:01am
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post #39 of 40
Quote:
Originally Posted by phisee;15581958 
The current BIOS on the card aquired from the card with GPU-Z and opened in RBE:

rjm685.png

as you can see, GPU registers is grey and not clickable, but changing it in the BIOS looks like the way to go here.
bro update afterburner to the latest build and your card will be properly recognized.
post #40 of 40
Thread Starter 
I use Afterburner 2.2.0 Beta 8 (never had previous version installed, fresh Win 7 x64 installation). AFAIK it's the current newest version.

I fiddled a bit around. Last state was that i unlocked the shaders and with the new BIOS the card was running at 1.149 V (instead of 1.110 V ) before and because it still frooze, i downclocked to 820 MHz and 1250 MHz on the memory.

I now realised that the 1300 MHz on the memory causes the freezes, if I stay with 1250 MHz i just tried with 880 MHz on the GPU and it was perfectly stable. The freezes seem to be gone with a slightly lower than stock clock on the memory and aren't caused by the core clock.

edit

current stable test:
j5f8fl.png
Edited by phisee - 11/5/11 at 11:10am
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