5x470 v8.0->900H/s v9.0->1030H/s nice speed up!!! but...
1000W Navitas gold with 4 undervolted, underclocked (1200/950) 470-s it crashes. i try start v9.0 miner with power limit -35 and -i 4 but no changes, after 1-20 min work system turn off. temporary back to v8.0, with 5x470(~1280/990 -i 6) work stable
5 year old Tagan TG500-U33 with athlon 64 x2, 2Gb ram and 2x290 v9.0 -i 8 ~500H/s cvoltage -37 powlimit+10 1070core/1300mem work absolutly stable
1000W Navitas gold with 4 undervolted, underclocked (1200/950) 470-s it crashes. i try start v9.0 miner with power limit -35 and -i 4 but no changes, after 1-20 min work system turn off. temporary back to v8.0, with 5x470(~1280/990 -i 6) work stable
5 year old Tagan TG500-U33 with athlon 64 x2, 2Gb ram and 2x290 v9.0 -i 8 ~500H/s cvoltage -37 powlimit+10 1070core/1300mem work absolutly stable
Same here for R9 390. I had to reduce the freuquency quite a lot. The v9 uses a 3% more energy and 5% more hash.
I'm running 4 R9390 gigbyte G1's on a coolermaster 1500w on Claymore v9.0, no problems with core clock at 1100 with very little rejected shares and 297-299H/s.