Gonna be a long post... I am going to assume you have just 1 5970 in your system.
For this I'm going to just go through the steps I use to set up my miners with a software over/under clock/volt on the Phoenix 2 miner. Things you will need...
11.12 or 12.1 driver. Looks like you are using Windows XP x64.
Here is
11.12 and
12.1. Take your pick. Both as far as I have seen do not exhibit the CPU bug. You don't need the catalyst control panel, it'll just hog system memory
Both of these come with 2.6 SDK though, which is bad for the Radeon HD 5000 series. You will want the 2.1 SDK. You can install it right along side of the 2.6 SDK without any issues. You can download it
Here but really you don't need this whole package. It comes with samples and helpers and a bunch of other useless junk that you don't need. You can instead just install the required package, which is
here. This is hosted on my dropbox, so if you are paranoid about 3rd party, you can get the exact same msi by downloading the
Full Package but instead of installing it, you extract the contents somewhere (It's a self-extracting executable) and navigate to ati-stream-sdk-v2.1-xp64\Packages\Apps\ATIStreamSDK_Dev_xp64a and run ATIStreamSDK_dev.msi to install SDK 2.1.
Next you may want to verify that your SDK's are properly installed. Another handy tool I use is GPU Caps Viewer which you can download
Here. Just scroll down to the Win32 installer to start downloading. After you install and open it, go to the OpenCL tab up top and you will see a dropdown box at the upper right. If you followed this guide word for word, you should have "1: AMD Accelerated Parallel Processing" as the first item and "2: ATI Stream" as the second item. If you only have "1: ATI Stream" this is fine, just note it. If you don't have an "ATI Stream", something went wrong. Try rebooting and seeing if it appears after rebooting.
Next, we'll work on a software-based undervolt and underclock. I think we'll start with something conservative and let you use higher/lower volts/clocks. For this, I like to use Sapphire Trixx 4.3.0. You can get it
Here. After you install it, go to the settings portion and make sure "Disaple ULPS" has a checkmark by it, and if "Synchronize cards in Multi-GPU config" has a checkmark by it, get rid of it. You can also set a fan speed for your 5970 under fan control. I personally just use 100% because the noise won't be heard and I don't know any better
. The main tab of interest is the Overclocking tab of course. Go ahead and adjust GPU clock to 700 and VDDC to 1000 (1v) (It might change to 999 and this is ok). The memory clock may be trickier. We want it to be at 150, but it won't go that far right away. Instead, drag it all the way to the left, and hit apply. Trixx will now allow you go a little lower. Drag it to the left, apply, and repeat until you get 150. The 5970 has 2 GPU's so we'll want to do to the dropdown box and select the other 5970 GPU core, and do the same this. Set GPU Clock to 700, memory clock to 150, and VDDC to 1000 (It might change to 999 and this is ok). Make sure that you applied, then you can close or minize Trixx to the tray.
Finally, the miner itself. I like to use Phoenix 2, mostly because of it's consistent hashrate display, plus it seems to be a little higher than other more popular miners. Go ahead and pick up your copy of Phoenix 2
Here. Phoenix 2 uses a config file, compared to Phoenix 1 which uses command line arguments. It is phoenix.cfg and it is in located in the same place as phoenix.exe. Now assuming that everything so far installed correctly and you have a "2: ATI Stream" in GPU Caps Viewer's OpenCL dropdown box, I have a pre-configured config file here in a codeblock. Just open up phoenix.cfg with notepad or your favorite text editor (If it is missing, create the file) and paste the following into file, replacing whatever may be in it.
MAKE SURE TO REPLACE THE "backend" WITH YOUR POOL'S FULL URL! THE SAME GOES FOR "backups" iIF YOU HAVE ANY BACKUP POOLS! You may have as many backups as you want. If you DON'T have a backup pool, you may delete the entire "backups =
http://user:pass@pooladdress2:port" line.
[general]
backend = http://user:pass@pooladdress:port
backups = http://user:pass@pooladdress2:port
verbose = true
[cl:1:1]
name = 5970 MASTER GPU
kernel = phatk2
AGGRESSION = 12
VECTORS = true
BFI_INT = true
WORKSIZE = 128
[cl:1:2]
name = 5970 SLAVE GPU
kernel = phatk2
AGGRESSION = 12
VECTORS = true
BFI_INT = true
WORKSIZE = 128
[web]
disable = true
Save and close your text editor and run phoenix.exe. Voila, you should see about 650 Mhash/sec!
