For MSI R7950, I get 600kh/s and 70c constant temp with (I have a little help from the -20c outside temperature):
set GPU_MAX_ALLOC_PERCENT=100
setx GPU_MAX_ALLOC_PERCENT 100
cgminer.exe --scrypt -I 20 -w 256 --gpu-engine 1000 --gpu-memclock 1400 --no-submit-stale
You should also unlock MSI afterburner :
1st - Dowload the latest MSI AfterBurner link located in Update above and install.
2nd - Locate the folder where MSI Afterburner installed to, open it, and locate the CFG file named MSIAfterburner. When you 1st dbl click this file it will ask you what program you want to use to open it, choose "Notepad" and click "ok" Once you have the MSIAfterburner CFG file open in notepad you need to change a couple of settings near the bottom:
UnofficialOverclockingEULA = I confirm that I am aware of unofficial overclocking limitations and fully understand that MSI will not provide me any support on it
UnofficialOverclockingMode = 1 (to keep PowerPlay active (may not work on old ASICs), 2 to traditionally disable PowerPlay or to 0 to temporary disable unofficial overclocking path)<--Do not type this, just for reference I have mine set to = 1
After you have made these changes, DO NOT forget to click "file" and "save" before exiting notepad, or your changes will not take into effect!"
first of all, thx for the reply.
i have some questions:
1)what's the difference between set GPU_MAX_ALLOC_PERCENT and setx GPU_MAX_ALLOC_PERCENT lines? i only have used setx GPU_MAX_ALLOC_PERCENT = 100...
![Huh](https://bitcointalk.org/Smileys/default/huh.gif)
2)my vc is already OC with MSI afterburn, but i didn't changed .cgf file, i did everything by menu. Anyways, i check MSIAfterburner.cfg and i see that UnofficialOverclockingMode is already set to 1, but there is no setting for UnofficialOverclockingEULA. I tried to set it = 1, but when i save it says that i have no autorization to save it...i don't know why. I'm running win 7 64 bit as administrator...
now my clock are: mem@1600, engine@1020