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How To: Overclock Your AMD / ATi GPU - Page 53

post #521 of 644
well after reading a bit more i found out what the power +20% means, but I will lose that option if i use msi ab?
post #522 of 644
725>825 GPU
1000>1230 Memory

So far..

1 thing i don't get. Why do you have to look at the screen all the time. Whenever you do get an error, GPU tool will notify it in the bottom left corner anyway?
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post #523 of 644
Guys can i get some help here? I tried to overclock my 6870 and reached:
-970 Mhz on Core
-1150 Mhz on Memory
then i saved the settings and ran GPUTool for 5 whole hours without any sign of artifacts or errors..then i closed the stress testing and played one, two not too stressing games and when i checked my timings they are back to normal again. This happens all the time, the clock keeps going back to default even i that i dont get any errors on stressing which means its stable as hell. Also i tried to increase the voltage cause i thought this may be the culprit but the slider is grayed out so i checked the "Unclock Voltage Control" on the Afterburner, restarted the Afterburner and the slider is still disabled. I don't think that you cant actually change the voltage on the Sapphire 6870 so maybe im doing something wrong?
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post #524 of 644
Quote:
Originally Posted by Heartl3ss View Post
Guys can i get some help here? I tried to overclock my 6870 and reached:
-970 Mhz on Core
-1150 Mhz on Memory
then i saved the settings and ran GPUTool for 5 whole hours without any sign of artifacts or errors..then i closed the stress testing and played one, two not too stressing games and when i checked my timings they are back to normal again. This happens all the time, the clock keeps going back to default even i that i dont get any errors on stressing which means its stable as hell. Also i tried to increase the voltage cause i thought this may be the culprit but the slider is grayed out so i checked the "Unclock Voltage Control" on the Afterburner, restarted the Afterburner and the slider is still disabled. I don't think that you cant actually change the voltage on the Sapphire 6870 so maybe im doing something wrong?

You say you saved the settings. Did you save it to a profile?
After you click save, the numbers 1 to 6 light up in green, u have to press one to actually save it. Not sure if u did this, check it
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post #525 of 644
Quote:
Originally Posted by unseen0 View Post
You say you saved the settings. Did you save it to a profile?
After you click save, the numbers 1 to 6 light up in green, u have to press one to actually save it. Not sure if u did this, check it
i followed the guide of this topic step by step....so yes..
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post #526 of 644
overclocked my 955 be c3 on 3.8 stable. havent oc memory but i did overclock my 6870. its all reliable. weird huh?
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post #527 of 644
A lot of people are asking how to OC HD 6950 and HD6970 pass default setting given by CCC. AB will also not OC further. If you enable Unofficial Overcloking then the GPU or GPUs conflict with CCC most of the time and lose Power saving features resulting in high idle temps. These to files have been posted many times in the forum and recommended by many over the Internet but it would be nice to be included in the How To:, What these files do is increase CCC OC limit. For HD 6970 its 950/1450. With this you can OC beyond 1000Mhz+ and 1600Mhz+ .
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post #528 of 644
Hey guys, brand new noob in overclocking here but I just purchased a toxic 6950 and unlocked the shaders. I downloaded trixx and bumped up the core clock from stock 880mhz to 890mhz and proceeded to play BF2. It crashed and restarted my computer 10 minutes into gameplay...am i doing something wrong? I went into CCC and put the power control settings to 50% as well. Even on stock values I get errors on the GPU test in the OP
    
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post #529 of 644
^^ read this dude.. it should help you.. read procedure #2 simple .. try it and see what happens

http://www.overclock.net/amd-ati/996...mpany-2-a.html
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post #530 of 644
Hey thanks for all this info everyone. With this I was able to get this:

Sapphire Radeon HD6950
Modded Bios - Unlocked Shaders only

Core Voltage: 1.28v
Core Clock: 1000
Mem Clock: 1455
48 Degrees under water

Validation: http://www.techpowerup.com/gpuz/g42wp/
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