New 10.2 is not good for all cards, it seems...
Just tested on my old Pitcairn R7 370 2GB
On v9.7 - 490-495 h/s
With new 10.2:
- if I start directly default -dmem tries 2.5+ GB of memory - obviously it doesn't work and miner gets stuck
- if I disable -dmem (-dmem 0), the best I can do is -h 832, but in this cases the h/s are only 475-480 (btw, Claymore - GPU0 must stay at -h 480, otherwise it crashes; but still gets these 480 h/s).
So it's not an improvement, but the opposite...
Unfortunately, good features and info of v10.2 cannot not be used... I'm sticking with 9.7...
And 10.2 became very sensitive to overclocking. On my 270X 4Gb on 9.7 i have 490-495 h/s, on 10.2 with the same frequinces and -dmem 1 I have 530 h/s and many of incorrect shares. Try to reduce OC and have only 515 h/s almost without incorrect shares.
If I disable -dmem 1 setting it to 0 then I recieve only 480 h/s with the same -h 512 and OC parameters that on 9.7 gives 490.