11.7 vs 11.6 drivers for xp 2 or more gpus interesting

[hmblm1245]

so i found something interesting when running 2 or more gpus with windows xp x86 and 11.7 drivers. After extending the desktop and using a dummy plug, guiminer sees both cards. i am using 6950s. I start mining with one at stock speeds 328mhash then i start with the other and the newly started video card pulls mhash from the original card. I triple checked to make sure that the second card i enabled was set to 0-1 cayman. After i uninstalled 11.7 and installed 11.6 it sent back to the way it was before adding the mhash together.

any ideas or thoughts.

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[hdfxst]

the same thing happened to me,reinstalled the 11.6 and everything is good again

[hmblm1245]

Did you have xp 32bit as well?

[hdfxst]

yes,xp 32 bit sp3 the computer was pretty much unusable it took about 10 seconds to get the mouse pointer to move over to stop guiminer

[jasond1979]

I'm having the same problem,  only one card is recognized,  it's doubled second card not recognized.  Will uninstall catalyst 11.9 and install 11.6

[MacT]

 I had the exact same issue a few months back, and after extensive reading and help requests
had to go to win7, which  I hated to do.  Nobody anywhere who ever raised this question seemed to find a fix.

[hmblm1245]

I had the exact same issue a few months back, and after extensive reading and help requests
had to go to win7, which  I hated to do.  Nobody anywhere who ever raised this question seemed to find a fix.

correct.we only have a workaround. considering its a 10 y/o os i guess no one wants to put effort in finding a solution. I like xp just because i have what seems to be 100s of legit copies lying around and very few win7. the workaround seems fine for me. i keep getting top hashes with strong OCing.