Topic: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v15.0 (Windows/Linux) - page 709. (Read 6590565 times)

Do it mean that we don't need to mix crimson drivers like is described here (http://1stminingrig.com/best-bios-rom-sapphire-nitro-rx-580-8gb-limited-edition-hynix-memory-31-5-mhs/) and we need to use only the new drivers?

I run 5 x 1070 with 8Gb OS RAM (16Gb virtual memory settings).

I see no issue to power cards from multiple 600 or 700W cheap power supplies.
I am powering 6xR9 390 with six PS that in total, cost me app. 200$ and it works fine for months
Important to mention that 390 in dual mining draws close to 300W each, 1800W total.
You cannot get 2x1000W PSU for 200$

Oh boy this should be fun!

tnx POOP135 it works !!!! So with this setting it's should also with 4GB RAM ?

Finally I can test and confirm that AMD has fixed the issue with slowdown at high DAG epochs for Vega/Polaris/Fiji cards. They are going to release new drivers in a few days.

Set 16GB minimum and 32GB maximum pagefile?

I solved problem by adding 4 GB RAM (now total of 8 GB), but now I added 6th card and the same error occur? So 5+ GPU you need 16 GB of RAM ?

Thank you very much! I apologize (seems I've been through this...).

Is there any changes to R9 390 code? I had an impression that for Eth last year the indicator showed > 33 MHs. Now (on Music and Exp) it is barely 32.
Even with +- trick.

Hi Claymore and all,

I'm facing intermittent issue.

The Rig can run from an hour to over 14 hours without any issues but the issue occurs as shown below:

20:37:39:527   1044   NVML: cannot get current temperature, error 15
20:37:39:589   1044   NVML: cannot get fan speed, error 15
20:37:39:636   1044   srv bs: 0
20:37:39:636   c08   NVML: cannot get current temperature, error 15
20:37:39:636   1044   sent: 235
20:37:39:636   c08   NVML: cannot get fan speed, error 15
20:37:39:652   1524   NVML: cannot get current temperature, error 15
20:37:39:652   1524   NVML: cannot get fan speed, error 15
20:37:39:667   1524   srv bs: 0
20:37:39:667   1524   sent: 240
20:37:41:261   18dc   ETH: checking pool connection...
20:37:41:261   18dc   send: {"worker": "", "jsonrpc": "2.0", "params": [], "id": 3, "method": "eth_getWork"}

20:37:41:277   18dc   got 248 bytes
20:37:41:277   18dc   buf: {"id":3,"jsonrpc":"2.0","result":["0xf40ae5f4d129887a178eee2d9ad801f3282e0960f1886af2968b86e236180d19","0xe7cc04b23a9cc81f260579130b45591574d12ac3be13f0a279ad68fc753f9699","0x0112e0be826d694b2e62d01511f12a6061fbaec8bc02357593e70e52ba","0x3e7bca"]}

20:37:41:277   18dc   parse packet: 247
20:37:41:277   18dc   ETH: job is the same
20:37:41:277   18dc   new buf size: 0
20:37:41:902   10d0   recv: 69
20:37:41:902   10d0   srv pck: 68
20:37:41:902   10d0   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:41:902   10d0   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
20:37:41:902   10d0   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:41:933   10d0   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
20:37:41:933   10d0   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:41:933   10d0   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
20:37:41:933   10d0   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:41:964   10d0   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
20:37:41:964   10d0   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:41:996   10d0   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
20:37:41:996   10d0   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:41:996   10d0   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
20:37:42:011   10d0   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:42:027   10d0   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
20:37:42:027   10d0   srv bs: 0
20:37:42:027   10d0   sent: 225
20:37:42:152   13b4   GPU 0, GpuMiner cu_k1 failed 30, unknown error
20:37:42:433   13b4   GPU 0, GpuMiner kx failed 1
20:37:42:433   10e4   GPU 1, GpuMiner cu_k1 failed 30, unknown error
20:37:42:454   10e4   GPU 1, GpuMiner kx failed 1
20:37:42:460   1b98   GPU 2, GpuMiner cu_k1 failed 30, unknown error
20:37:42:464   1b98   GPU 2, GpuMiner kx failed 1
20:37:42:469   b18   GPU 5, GpuMiner cu_k1 failed 30, unknown error
20:37:42:470   b18   GPU 5, GpuMiner kx failed 1
20:37:42:433   13b4   Set global fail flag, failed GPU0
20:37:42:479   838   GPU 6, GpuMiner cu_k1 failed 30, unknown error
20:37:42:480   838   GPU 6, GpuMiner kx failed 1
20:37:42:482   11c4   GPU 4, GpuMiner cu_k1 failed 30, unknown error
20:37:42:489   11c4   GPU 4, GpuMiner kx failed 1
20:37:42:492   f60   GPU 3, GpuMiner cu_k1 failed 30, unknown error
20:37:42:495   f60   GPU 3, GpuMiner kx failed 1
20:37:42:498   f60   Set global fail flag, failed GPU3
20:37:42:500   13b4   GPU 0 failed
20:37:42:460   10e4   Set global fail flag, failed GPU1
20:37:42:482   838   Set global fail flag, failed GPU6
20:37:42:505   838   GPU 6 failed
20:37:42:492   11c4   Set global fail flag, failed GPU4
20:37:42:508   11c4   GPU 4 failed
20:37:42:511   1190   GPU 0, GpuMiner cu_k1 failed 30, unknown error
20:37:42:514   f60   GPU 3 failed
20:37:42:516   f28   GPU 3, GpuMiner cu_k1 failed 30, unknown error
20:37:42:519   f28   GPU 3, GpuMiner kx failed 1
20:37:42:522   87c   GPU 1, GpuMiner cu_k1 failed 30, unknown error
20:37:42:525   87c   GPU 1, GpuMiner kx failed 1
20:37:42:526   c28   GPU 6, GpuMiner cu_k1 failed 30, unknown error
20:37:42:527   c28   GPU 6, GpuMiner kx failed 1
20:37:42:528   1924   GPU 4, GpuMiner cu_k1 failed 30, unknown error
20:37:42:529   1924   GPU 4, GpuMiner kx failed 1
20:37:42:530   10e4   GPU 1 failed
20:37:42:522   f28   Set global fail flag, failed GPU3
20:37:42:469   1b98   Set global fail flag, failed GPU2
20:37:42:526   87c   Set global fail flag, failed GPU1
20:37:42:478   b18   Set global fail flag, failed GPU5
20:37:42:528   c28   Set global fail flag, failed GPU6
20:37:42:536   1190   GPU 0, GpuMiner kx failed 1
20:37:42:530   1924   Set global fail flag, failed GPU4
20:37:42:538   f28   GPU 3 failed
20:37:42:540   1b98   GPU 2 failed
20:37:42:541   a5c   GPU 2, GpuMiner cu_k1 failed 30, unknown error
20:37:42:542   a5c   GPU 2, GpuMiner kx failed 1
20:37:42:545   b18   GPU 5 failed
20:37:42:548   14a4   GPU 5, GpuMiner cu_k1 failed 30, unknown error
20:37:42:573   14a4   GPU 5, GpuMiner kx failed 1
20:37:42:598   14a4   Set global fail flag, failed GPU5
20:37:42:601   1924   GPU 4 failed
20:37:42:602   87c   GPU 1 failed
20:37:42:545   a5c   Set global fail flag, failed GPU2
20:37:42:604   c28   GPU 6 failed
20:37:42:537   1190   Set global fail flag, failed GPU0
20:37:42:607   14a4   GPU 5 failed
20:37:42:608   a5c   GPU 2 failed
20:37:42:610   1190   GPU 0 failed
20:37:42:889   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:42:891   c08   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
20:37:42:892   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:42:893   c08   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
20:37:42:894   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:42:895   c08   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
20:37:42:896   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:42:897   c08   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
20:37:42:898   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:42:901   c08   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
20:37:42:902   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:42:903   c08   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
20:37:42:904   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:42:906   c08   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
20:37:44:598   cf4   recv: 69
20:37:44:599   cf4   srv pck: 68
20:37:46:822   cf4   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:46:167   18dc   send: {"id":6,"jsonrpc":"2.0","method":"eth_submitHashrate","params":["0x0", "0x0000000000000000000000000000000000000000000000000000000058213005"]}

20:37:46:846   18dc   got 39 bytes
20:37:46:850   18dc   buf: {"id":6,"jsonrpc":"2.0","result":true}

20:37:46:859   18dc   parse packet: 38
20:37:46:864   18dc   new buf size: 0
20:37:46:903   cf4   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
20:37:46:908   cf4   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:47:023   1984   recv: 69
20:37:47:034   1984   srv pck: 68
20:37:47:111   cf4   NVML: cannot get fan speed, error 17
20:37:47:126   cf4   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:47:142   cf4   NVML: cannot get fan speed, error 17
20:37:47:142   cf4   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:47:173   cf4   NVML: cannot get fan speed, error 17
20:37:47:189   cf4   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:47:189   cf4   NVML: cannot get fan speed, error 17
20:37:47:189   cf4   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:47:189   cf4   NVML: cannot get fan speed, error 17
20:37:47:189   cf4   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:47:189   cf4   NVML: cannot get fan speed, error 17
20:37:47:189   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:47:189   cf4   srv bs: 0
20:37:47:189   c08   NVML: cannot get fan speed, error 17
20:37:47:189   cf4   sent: 196
20:37:47:189   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:47:204   c08   NVML: cannot get fan speed, error 17
20:37:47:204   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:47:204   c08   NVML: cannot get fan speed, error 17
20:37:47:204   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:47:204   c08   NVML: cannot get fan speed, error 17
20:37:47:204   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:47:204   c08   NVML: cannot get fan speed, error 17
20:37:47:204   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:47:204   c08   NVML: cannot get fan speed, error 17
20:37:47:204   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:47:204   c08   NVML: cannot get fan speed, error 17
20:37:47:204   1984   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:47:204   1984   NVML: cannot get fan speed, error 17
20:37:47:220   1984   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:47:220   1984   NVML: cannot get fan speed, error 17
20:37:47:220   1984   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:47:220   1984   NVML: cannot get fan speed, error 17
20:37:47:220   1984   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:47:220   1984   NVML: cannot get fan speed, error 17
20:37:47:231   1984   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:47:233   1984   NVML: cannot get fan speed, error 17
20:37:47:235   1984   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:47:236   1984   NVML: cannot get fan speed, error 17
20:37:47:237   1984   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:47:238   1984   NVML: cannot get fan speed, error 17
20:37:47:241   1984   srv bs: 0
20:37:47:246   1984   sent: 196
20:37:49:592   1890   recv: 69
20:37:49:592   1890   srv pck: 68
20:37:49:592   1890   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:49:592   1890   NVML: cannot get fan speed, error 17
20:37:49:592   1890   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:49:592   1890   NVML: cannot get fan speed, error 17
20:37:49:592   1890   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:49:592   1890   NVML: cannot get fan speed, error 17
20:37:49:592   1890   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:49:592   1890   NVML: cannot get fan speed, error 17
20:37:49:592   1890   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:49:608   1890   NVML: cannot get fan speed, error 17
20:37:49:608   1890   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:49:608   1890   NVML: cannot get fan speed, error 17
20:37:49:608   1890   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:49:608   1890   NVML: cannot get fan speed, error 17
20:37:49:608   1890   srv bs: 0
20:37:49:608   1890   sent: 196
20:37:50:478   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:50:479   c08   NVML: cannot get fan speed, error 17
20:37:50:479   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:50:480   c08   NVML: cannot get fan speed, error 17
20:37:50:481   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:50:481   c08   NVML: cannot get fan speed, error 17
20:37:50:482   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:50:483   c08   NVML: cannot get fan speed, error 17
20:37:50:483   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:50:484   c08   NVML: cannot get fan speed, error 17
20:37:50:485   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:50:485   c08   NVML: cannot get fan speed, error 17
20:37:50:486   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:50:487   c08   NVML: cannot get fan speed, error 17
20:37:51:285   18dc   ETH: checking pool connection...
20:37:51:285   18dc   send: {"worker": "", "jsonrpc": "2.0", "params": [], "id": 3, "method": "eth_getWork"}

20:37:51:300   18dc   got 248 bytes
20:37:51:301   18dc   buf: {"id":3,"jsonrpc":"2.0","result":["0xf40ae5f4d129887a178eee2d9ad801f3282e0960f1886af2968b86e236180d19","0xe7cc04b23a9cc81f260579130b45591574d12ac3be13f0a279ad68fc753f9699","0x0112e0be826d694b2e62d01511f12a6061fbaec8bc02357593e70e52ba","0x3e7bca"]}

20:37:51:302   18dc   parse packet: 247
20:37:51:303   18dc   ETH: job is the same
20:37:51:303   18dc   new buf size: 0
20:37:52:025   95c   recv: 69
20:37:52:026   95c   srv pck: 68
20:37:52:027   95c   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:52:028   95c   NVML: cannot get fan speed, error 17
20:37:52:028   95c   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:52:029   95c   NVML: cannot get fan speed, error 17
20:37:52:030   95c   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:52:030   95c   NVML: cannot get fan speed, error 17
20:37:52:031   95c   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:52:032   95c   NVML: cannot get fan speed, error 17
20:37:52:032   95c   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:52:033   95c   NVML: cannot get fan speed, error 17
20:37:52:034   95c   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:52:034   95c   NVML: cannot get fan speed, error 17
20:37:52:035   95c   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:52:036   95c   NVML: cannot get fan speed, error 17
20:37:52:036   95c   srv bs: 0
20:37:52:037   95c   sent: 196
20:37:53:748   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:53:748   c08   NVML: cannot get fan speed, error 17
20:37:53:748   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:53:748   c08   NVML: cannot get fan speed, error 17
20:37:53:748   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:53:748   c08   NVML: cannot get fan speed, error 17
20:37:53:748   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:53:748   c08   NVML: cannot get fan speed, error 17
20:37:53:748   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:53:748   c08   NVML: cannot get fan speed, error 17
20:37:53:748   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:53:748   c08   NVML: cannot get fan speed, error 17
20:37:53:748   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:53:748   c08   NVML: cannot get fan speed, error 17
20:37:54:596   1970   recv: 69
20:37:54:596   1970   srv pck: 68
20:37:54:596   1970   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:54:596   1970   NVML: cannot get fan speed, error 17
20:37:54:596   1970   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:54:596   1970   NVML: cannot get fan speed, error 17
20:37:54:596   1970   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:54:596   1970   NVML: cannot get fan speed, error 17
20:37:54:596   1970   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:54:596   1970   NVML: cannot get fan speed, error 17
20:37:54:596   1970   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:54:596   1970   NVML: cannot get fan speed, error 17
20:37:54:596   1970   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:54:596   1970   NVML: cannot get fan speed, error 17
20:37:54:596   1970   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:54:596   1970   NVML: cannot get fan speed, error 17
20:37:54:596   1970   srv bs: 0
20:37:54:596   1970   sent: 196
20:37:56:885   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:56:886   c08   NVML: cannot get fan speed, error 17
20:37:56:887   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:56:887   c08   NVML: cannot get fan speed, error 17
20:37:56:888   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:56:888   c08   NVML: cannot get fan speed, error 17
20:37:56:889   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:56:890   c08   NVML: cannot get fan speed, error 17
20:37:56:890   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:56:891   c08   NVML: cannot get fan speed, error 17
20:37:56:892   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:56:892   c08   NVML: cannot get fan speed, error 17
20:37:56:893   c08   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:56:894   c08   NVML: cannot get fan speed, error 17
20:37:57:026   6a8   recv: 69
20:37:57:027   6a8   srv pck: 68
20:37:57:028   6a8   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:57:029   6a8   NVML: cannot get fan speed, error 17
20:37:57:029   6a8   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:57:030   6a8   NVML: cannot get fan speed, error 17
20:37:57:031   6a8   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:57:031   6a8   NVML: cannot get fan speed, error 17
20:37:57:032   6a8   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:57:033   6a8   NVML: cannot get fan speed, error 17
20:37:57:033   6a8   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:57:034   6a8   NVML: cannot get fan speed, error 17
20:37:57:035   6a8   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:57:035   6a8   NVML: cannot get fan speed, error 17
20:37:57:036   6a8   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
20:37:57:036   6a8   NVML: cannot get fan speed, error 17
20:37:57:037   6a8   srv bs: 0
20:37:57:038   6a8   sent: 196

I've activated -wd 1 and it will trigger reboot.bat file to restart my computer.
however,

After the restart,

The miner shows the following error as it cant detect my gpu.
This error doesn't trigger the reboot.bat and it will keep prompting the error until i go into the computer and manually restart it.

cudaGetDeviceCount failed (30, unknown error), probably no CUDA devices
20:38:19:071   1510   No NVIDIA CUDA GPUs detected.
20:38:19:071   1510   No AMD OPENCL or NVIDIA CUDA GPUs found, exit

Does anyone know a solution for this?

This is in the claymore stub file right?  Do I have to do something in the local.conf?  The settings follow the stub file only when there's no command specified in the conf file right?
Thanks.

Here you go

play.google.com/store/apps/details?id=ua.com.bcmob.claymoresdualminermonitor

Yes, answer is there.
But, Claymore, can you please add Musiccoin for devfee and not only Expanse?

It's a good idea to check FAQ in the first post of this thread and find the answer.

Mr. Claymore, I Want EthMan for Android.

Like jackbox said, you can't mine POS. But from what i've read the transition to POS won't be 100% right away, it will be implemented gradually, so for example first 1% POS and 99% POW (mining).

Hello Mr. Claymore,
I have a little request: The word goes about these 2GB Radeon cards which are already not suitable for mining Ethereum... They can't dig Ethrtrum but still can do Musicoin, Expanse, etc. So when I begin to mine with them with the Dual miner (in ethereum-only mode) they try to switch to other pools in order to dig devfee, but the Ethereum DAG could not be fitted in their memory and the whole thing crashes (or the switching is so slow that this kills most of the useful time for mining)... The only workaround is to set -nofee 1 but then I loose the latest speed optimizations on these already slow cards... PLEASE, Mr. Claymore, remove this limitation in case when all the cards are 2GB. I'm agree to send you a part of the coins earned but this limitation is "to murder an already dead dog" in these cases...

Nope. POS doesn't involve mining. You can mine other Ethash coins that remain POW.

Don't specify "-tt" option.

Hi
Please check Your Internet... Not completed connected.