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ATI 6950 Unlocked to 6970 Texture fill rate?

You need to verify that V is actually being raised. Bench at 840 stock 1.1V - pay attention to max temps.

Then raise V to 1250mv, bench same 840 - pay attention to max temps.

If you see a temp increse we know the V is taking, and you just have a poor clocking card.

If no temp increse we need to find a way to raise V.
 
Yes I am on my own modified 6950 BIOS, I will do tests checking max temps for you now. Will post results very shortly, thanks for helping!.
 
Ok here are the results tropical guy, it looks like it is taking the increased voltage, I am using 3d Furmark to bench at 10 minutes at a time and using a constant fan speed of 50% to cool.

1.1v = max load temp of 73-74c at the 10 minute mark
1.25v = max load temp of well put it this way im at 85c and im at the 5 minute mark.

Any thoughts?.
 
The only thing you can do now is try OCing the core again leaving the memory at 1250 to rule out that the memory could be the issue.

Try 880 at 1.185~1.2V. What I have found is that it takes about 20mv to get each 10MHz of core speed. So if you are stable at 840 1.1V you should need about 80mv more or 1.180V to reach 880. If it still won't OC, well your card just isn't as good as others. Some just won't respond well to V.



Good Luck
 
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The only thing you can do now is try OCing the core again leaving the memory at 1250 to rule out that the memory could be the issue.

Try 880 at 1.185~1.2V. What I have found is that it takes about 20mv to get each 10MHz of core speed. So if you are stable at 840 1.1V you should need about 80mv more or 1.180V to reach 880. If it still won't OC, well your card just isn't as good as others. Some just won't respond well to V.



Good Luck
Well I have put the card back in to the I7 atleast I know its not my system and its the card. I will give that a shot. If all else fails DSR Monday!!
 
Glad to hear it.

The memory on these does not like much, if any, above 1325. Many can't go 1325.

So now you can raise the core clock up bit by bit and see how high you can get it. Just keep the memory down to 1250 for benching. Memory speed makes little difference in benches or games so don't worry much about it. Ignore all the 1400~1500 nonsense you hear about the 6970 flashed 50's, they'll die soon enough...lol
 
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Well I have put the card back in to the I7 atleast I know its not my system and its the card. I will give that a shot. If all else fails DSR Monday!!

Sorry I suggested otherwise and put you through all that mate. I didn't think it would be memory specific for 1375 over 1325. As you've probably read through the Unlock thread here at OCUK as well as the Techpower thread, there isn't many that have acted this way. Certainly not from what I've read on here at OCUK and Techpower.

My card showed limitations on the core and certain voltage way before I knew my limitation on the memory. Maybe I was just a little foolish thinking all would clock easily in core and memory to 880/1375 due to a combination of my own experience, other members here at OCUK and watching before I got my card as well as continuing today and reading on Techpower of the majority of cards clocking similarly to mine. I apologise for assuming and thinking it wasn't the card. I should have thought of the memory but it was late and I'm a donkey.

So are you happy with your card at the 6970 core or would you like one that can push further?.

I'm just happy that you're one step ahead now.

Stable at 880/1325 1.185V looks like it is whenever I try and clock the Memory is when it gives up!.

I'm glad you're now getting somewhere. This is the first 6950 I've seen that hasn't been able to push the memory.

Glad to hear it.

The memory on these does not like much, if any, above 1325. Many can't go 1325.

So now you can raise the core clock up bit by bit and see how high you can get it. Just keep the memory down to 1250 for benching. Memory speed makes little difference in benches or games so don't worry much about it. Ignore all the 1400~1500 nonsense you hear about the 6970 flashed 50's, they'll die soon enough...lol

1400-1500 nonsense?. I only ran benchmarks at 1500Mhz and it passed fine with no anomalies. These are short benchmarks as in a few runs of Heaven 2.1 and a few runs of 3DMark2011 at this speed and that was weeks ago now with the fan running at a high speed. For gaming I run at 950Mhz/1450Mhz and have played for 8 hour sessions, I've played taxing titles (Crysis, Starcraft II, Dirt 2) as well as less demanding games and if for one second I seen anything out of place visually, I'd reduce my overclock immediately and watch carefully as I find out my safe clocks. I'm not stupid, neither are others that have been running 1400-1450Mhz on their 6950 here at OCUK. I think a few here have overclocked a graphics card before you know...... :rolleyes:

Just because I couldn't determine this problem due to not experiencing or reading about such cases does not make me incapable of looking after my equipment. I think it's pretty rude of you to presume that anyone running their memory speeds between 1400-1450 are damaging their card unless you'd like to back that up?. Average I've seen is between 1375-1450 overclock on the memory.

Yes, you figured out it was the RAM overclocking that was the problem with this card and I'm thankful someone could help Hady but until 6950s start dropping like flies due to running at 1375-1450Mhz memory then I think you're assuming too much.

If you can prove that 1400-1450Mhz memory overclocking is killing these cards then I'll just have to eat my hat. If you are going to back this up then please start a thread as it's pretty important information that a lot of users would appreciate.

I look forward to your thread :).
 
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Wow the answer was here all along lol. Thank you MikeHiow :D.

I take it you never tried them individually Hady?.

Yeah I had not tried upping them individually up untill that point. It seems like its not stable at 880/1325 its fine during benchmarks but as soon as I start gaming it crashes >.<

Also dont worry about the suggestions you made, really it all helped :). Atleast now I know its not my system!.

Card is going back monday!
 
@JD...I am not looking to argue with you...to each his own. My comments were not directed at you, I am sorry you felt they were. If you are comfortable with the 6970 BIOS that is all that matters.

Best Wishes
 
Yeah I had not tried upping them individually up untill that point. It seems like its not stable at 880/1325 its fine during benchmarks but as soon as I start gaming it crashes >.<

Also dont worry about the suggestions you made, really it all helped :). Atleast now I know its not my system!.

Card is going back monday!

I'm really sorry that you've been given a right stinker of a card for overclocking potential :(. I hope the next one reaches 1000Mhz on the core at stock 6950 volts (1.100) :D ( I wish mine could do that too lol).

Thank you for helping my bruised ego lol. :)

It's strange that most other Powercolours seem to be doing fine on the overclocking side of it though. I know I said I didn't want to recommend a brand and offered you the threads to read to make your decision, but a lot of the HIS 2GB cards seem to be doing well.

@JD...I am not looking to argue with you...to each his own. My comments were not directed at you, I am sorry you felt they were. If you are comfortable with the 6970 BIOS that is all that matters.

Best Wishes

:o I feel like a right moron. You were talking about the 6970 BIOS :D. I was talking about using the original BIOS that comes with the card with shader unlock only. I had been up all night and misread your post. I can only apologise, sorry.

I was using the 6970 BIOS when I got my card weeks ago but that was only for a day. It ran Heaven fine but when I played Pro Evolution Soccer 2011 artifacts started appearing on the screen slightly, within 5 minutes and half time it was growing so I quit out the game and went back to stock BIOS. Then I read up and found the shader unlock only and done this to my BIOS and re-flashed. Then I used RBE to put my volts up to 1.175 and have been running like this since after the day I received the card. I'm careful and read a fair bit of other users.

I can run at 1450Mhz no problem at all though but yeah, this is on my original BIOS unlocked. Sorry for the confusion, messed up my sleep pattern this weekend and it's affecting my comprehension.
 
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I would be sure to re-lock it after you put the original BIOS back on. That is all you can do.

Hey buddy, Ok I have re flashed the original BIOS 6950 bios back on and attempted the atiwinflash -lockrom 0 in cmd promp, I got no confirmation that the rom has been locked, How can i verifiy it worked?.

Thanks

Here is a screenshot with what comes up on screen after i enter that command in to cmd.


The winflash window just dissappears after that
 
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