thanks for your answer
i have the RX580 now taken to work where the server room is and plannig to use it 24/7 there
runs with 1100 core 2100 mem and 28Mh/s ETH and 860 Mh/s DCR, 100W GPU only Power Draw at ~67°C is that temp good for 24/7 mining?
any good link on mem tuning (i have samsung ram) or its not worth trying to raise the 28Mh/s
any ideas are welcome
have a nice weekend
Tom
Hello Tommy
1 - Open PolarisBiosEditor 1.41 and use these UberMix v3.1 timings on straps 1625 and above (1: and 2: if you like) : 777000000000000022CC1C00AD615C41C0590E152ECC8608006007000B031420FA8900A00300000
010122F3FBA354019
2 - Now push the memory the max you can while dual-mining without memory errors in HWINFO. After you reach a stable memory clock, mine only ETH and start to downclock you GPU until the your Mh/s start to drop.
3 - Now that you have your max gpu/mem clocks set, you need to really undervolt your card. Before modding the voltage in the bios, you can use claymore batch file to send a voltage command to your card to see how low you can go.
This test is done using dual-mining with your optimal -dcri value (start with 15 and increase it until you ETH Mh/s start to drop).
Now edit your claymore batch file and use the command -cvddc 1000 in claymore. If its stable, drop to -cvddc 950, and them 920, 900. 900 Is the lower voltage claymore can set. If your card is still stable with 900mv, congratulations, we need to mod the bios go go lower!
Open PolarisBiosEditor
You can see in my bios, that I altered my GPU mhz and mV to my optimal values (power/performance). In my case, I get optimal performance at 1090mhz with 831mv !
You can alter the last gpu mhz speed to the speed you tested in step 2, and you have to use this table to set the voltages (random voltages wont work).
If you want somewhere around 0.880mv, you need to use the voltage 0.88125 and remove the "0." and the last 2 digits "25". So you now you put in polarisbioseditor 881.
Cheers