These:
http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1157&lid=1&pid=1439&leg=0I am presently running both with all 7 boxes checked and no flags. No flags because I am using the computer.
First one stays at 415.8 Mh/s (occasionally increases ~1Mh/s),
second one is the same almost all the time and only varies ~5 Mh/s, probably because that's the one my monitor is connected to.
http://s15.postimg.org/agxhdr2ij/Clipboard12.jpgIs this a good rate? Or should it be a lot better? What can I do to optimize it?
More details:Software:- Windows 7 Ultimate x64 (Custom Slim & Fast Version)
- GUIMiner v2012-12-03
Primary Hardware:- GPU: Sapphire HD 7950 3GB GDDR5 x2
- CPU: Intel Core i7-3770K
- PSU: CORSAIR CMPSU-750TX 750W
- RAM: Patriot Viper 3 16GB 1866Mhz
- Cooling: STOCK (room temp: ~60°F/15°C)
Other factors:- Daily use PC
- Running GPU fan on 100%
- Intend to run 24/7 simultaneously
- GPU temp remains stable between 63° and 66°C
When I increased the GPU clock to 1050, it increased to over 500Mhash/s
Combined total is remaining stable between 1.005 and 1.015 Ghash/s
Keeping the window open in my closet where my PC is, and fans on 100%, GPU temp for both so far are stable at 69°C. Room temp is probably around ~60°F/15°C.
Notes:
- Additionally, using the flags -v -w 128 increases 20 to 30 Mhash/s (without the flags it's a combined total of about 985Mh/s). But with those flags you can't be also using the computer or it will crash.
- Using latest version of GUIMiner
- I attempted to raise clock to 1070, but shortly after doing so it froze GUIMiner and said "display driver successfully recovered from error." I assume it "recovered" by freezing GUIMiner.
- Cards are in crossfire mode, although each is running individually in GUIMiner. This is because for some reason the latest CCC will only allow me to individually modify Graphics Overdrive for each card if it is in crossfire mode. If I take it out of crossfire mode then it only shows the Graphics Overdrive options for one of the cards.
- Increasing Memory Clock does not affect performance in GUIMiner. Thus I kept the Memory clock at stock speeds (1250).
