SORRY FOR THE DELAY--
I just installed and started the new miner with the same launch parameters as yesterday, "auto" and no overclocks, and "safe scratchpad update". The launch went the same as usual, same hashrate, etc. I'll post on progress. Thanks! --scryptr
EDIT(S): After ~90 minutes, 270 accepts / 2 rejects (270/2), 12MH/s for the rig, ~95W and 0.972V per GPU reported at console.
After ~3 hours, 567/9, 12MH/s for the rig, ~95W and 0.972V per GPU reported at the console.
After ~4.5 hours, 790/9, 12MH/s for the rig, ~95W and 0.972V per GPU reported at the console.
After ~6 hours, 995/33, 12MH/s for the rig, ~95W and 0.972V per GPU at the console.
So, looks like definitely something wrong with calculation code when compiling it with old GCC... I will release 0.16.3 final build today, with parameter --scratchpad-full-update. That should help, but will slightly decrease avg. hashrate on low-speed reisers.