A number of people seem to be having issues with power states and overclocking these cards, getting such things as BSOD's and black screens.
And with all the 79XX that have been sold this week (am sure) there will be even more.
Have been through a fair amount of hassle myself so thought would make this to hopefully help some people, as for the most part I have got things working doing this.
Firstly, you might be better off trying the 12.4 beta drivers - hopefully the 12.4 official will be out soon.
__________________________________________
But if you are struggling, try these:
1) Disable ULPS
You can do this by going into the registry and search for ULPS, and disabling that way, but there are several entries...
So what I do is install Sapphire Trixx 4.1.0, and on the settings page, disable ULPS - then restart. Don't set it to start with Windows, unless you want to use this for overclocking.
Now, this may not work with some drivers, as it relies on two files no included in some of the drivers.
You can get them here
Instructions are in the text file.
Restart again after placing fiels in relevant locations.
2) Currently the best option for overlocking is MSI Afterburner 2.20
This allows you to adjust power control sliders like you would in CCC Overdrive (to be honest, am not sure that really makes a diff to my personal overclocks)
To extend the overclocking limits without using "Unofficial overclocking", right click on the desktop shortcut to it, and go to properties.
At the end of the shortcut add the command -xcl - shortcut shoudl look something like "C:\program files (x86)\Msi Afterburner\afterburner.exe" -xcl
Close the properties, and rerun shortcut. It will ask you to restart, and once you have you will now have OC limits far in excess of what you will ever actually achieve.
This method ALSO requires the two files above I discovered, so if you have issues, make sure you put those 2 files where they belong.
3) For crossfire, test cards indivdually
I personally found that one of my 7950 Direct CU II's did not like high voltage. It would not be stable at 1200 core, with 1.218V, but the more voltage I added, the quicker it would begin to artefact.
The other card could run 1200 core with more volts happily.
I wish I had done this first off, as it would have saved me a fair amount of time.
Not all cards are equal - try them alone first
__________________________________________
I know there is a version 4.3.0 of Trixx coming out some time that not only eliminates the need for those 2 files, but will also allow adjusting of the power control slider - no info on when it's available to public though.
Don't worry about having both Trixx and AB installed. As long as you only use Trixx to disable ULPS and not start with windows, you should be good to go.
Hope this works as well for you as it did for me
And with all the 79XX that have been sold this week (am sure) there will be even more.
Have been through a fair amount of hassle myself so thought would make this to hopefully help some people, as for the most part I have got things working doing this.
Firstly, you might be better off trying the 12.4 beta drivers - hopefully the 12.4 official will be out soon.
__________________________________________
But if you are struggling, try these:
1) Disable ULPS
You can do this by going into the registry and search for ULPS, and disabling that way, but there are several entries...
So what I do is install Sapphire Trixx 4.1.0, and on the settings page, disable ULPS - then restart. Don't set it to start with Windows, unless you want to use this for overclocking.
Now, this may not work with some drivers, as it relies on two files no included in some of the drivers.
You can get them here
Instructions are in the text file.
Restart again after placing fiels in relevant locations.
2) Currently the best option for overlocking is MSI Afterburner 2.20
This allows you to adjust power control sliders like you would in CCC Overdrive (to be honest, am not sure that really makes a diff to my personal overclocks)
To extend the overclocking limits without using "Unofficial overclocking", right click on the desktop shortcut to it, and go to properties.
At the end of the shortcut add the command -xcl - shortcut shoudl look something like "C:\program files (x86)\Msi Afterburner\afterburner.exe" -xcl
Close the properties, and rerun shortcut. It will ask you to restart, and once you have you will now have OC limits far in excess of what you will ever actually achieve.
This method ALSO requires the two files above I discovered, so if you have issues, make sure you put those 2 files where they belong.
3) For crossfire, test cards indivdually
I personally found that one of my 7950 Direct CU II's did not like high voltage. It would not be stable at 1200 core, with 1.218V, but the more voltage I added, the quicker it would begin to artefact.
The other card could run 1200 core with more volts happily.
I wish I had done this first off, as it would have saved me a fair amount of time.
Not all cards are equal - try them alone first
__________________________________________
I know there is a version 4.3.0 of Trixx coming out some time that not only eliminates the need for those 2 files, but will also allow adjusting of the power control slider - no info on when it's available to public though.
Don't worry about having both Trixx and AB installed. As long as you only use Trixx to disable ULPS and not start with windows, you should be good to go.
Hope this works as well for you as it did for me
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