On x13mod on a 290 rig i've found that my memory speed is bouncing between what I have it set at, 1250mhz, and 150mhz. It continually drops to 150mhz and then regains to 1250mhz. It happens roughly every 15seconds. Still hashes, still submits, but this appears to be dropping hashing speed over time.
My 280x rig doesn't do this with same software.
Anybody else seeing this and any ideas?
This was fixed earlier by downloading MSI AB and then checking Unofficial overclock in the Settings. Apparently this has something to do with the powertune.
I tried this without success. I wonder if I need to set anything specific for powertune? I'm at 0 now, but issue persisted at 20 as well. The powertune lead makes sense because it appears memory is downclocking or throttling, though I'm not overclocking the cards (950c/1250m) and volts are untouched.
The issue has continued through AMD Drivers 13.12's, 14.4's and i'm on MSI AB beta 19.