3.1.1 and 3.2.1 are running my i5-3350P at 80% CPU. 3 GPUs (7850, 7950, 6970). Eventually locks up the machine, solid. Was OK with 2.11.4. Running 7x64 with 12.8 drivers.
That's driver and sdk related, nothing to do with cgminer - it caches bin files generated the first time you run it and will run the same ever more on that cgminer even if you change drivers, so you almost certainly changed drivers between cgminer versions.
It's a fresh install yesterday. Fresh install of drivers, Windows updated. Just copied my cgminer.conf in to a freshly extracted cgminer archive. New .bins are generated.
Do you still think it's drivers? The 12.8 drivers worked OK before reinstall (was running an AMD chip before).
Yeah, I do.
Why would you run 12.8 when 13.4 works perfectly fine? Were 7000 cards even out when 12.8 was released? Did you ever consider that you are using drivers that were never intended for that card? Have you also considered that it is why they have released newer drivers? To fix issues?
I have a core2duo 1.8ghz running 3x 7950s with no CPU usage issues. 13.4. Then I ditched windows 7 for Ubuntu and got even more hashes. Used 13.4 there too.