Hallo and nice greetings to the forum,

have there real problems, when mines with R9 390 u. R9 390X GPU's .....

For some months, the hashrate is decreasing continuously from formerly about 31 Mhs / s to about 25 Mhs / s even though the R9 390 (X) of the DAG Epoch problem should not be affected at all ....

Problem occurs both under Win 7 64 bit and under Win 10 64 bit (1709) ...

Geth is up to date ...

Claymore Miner is the version 12.0 ...

AMD driver is currently 18.12.3 on it, runs stable but only with 25 Mhs / s .... have already tried the 15.12, the blockchain driver and a few other drivers ... all with exactly the same result .... 25-26 Mhs / s

Have the drivers under Wattman already reset and already thrown down the Afterburner ... but always the same result ....

Gpu's run in a mix with Nvidia 1070 and / or RX 580 ..... Nvidia 1070 run stable at about 31 Mhs / .... RX 580 run stable at about 30 Mhs / s ....

Have no idea what I could do .... The gpu's have it on it, have been running for a long time with 31 Mhs / s ... is probably more of a setting thing ...

Would be grateful for any help...

LG Birgit1208