On a few of my rigs using any miner after 3.4, I get constant crashes and machine hangs which is a PITA as I have to drive to my location to restart them.
I've ran a lot of tests, clocks set to stock, over and underclocked and I get constant machine lockups after a few hours. The worst rigs are my 6x tri-x 290'with the machine hang issue, I have a few 4x 7950 rigs as well and get a lockup on a couple of those. Logs on all are similar to the following:
18:59:33:839 5c8 watchdog - thread 0, hb time 1965
18:59:33:839 c68 Round
18:59:33:849 5c8 WATCHDOG: Thread 0 hangs in OpenCL call, exit
18:59:33:859 5c8 watchdog - thread 1, hb time 671
18:59:33:859 5c8 watchdog - thread 2, hb time 1950
18:59:33:859 5c8 watchdog - thread 3, hb time 0
18:59:33:859 5c8 watchdog - thread 4, hb time 234
18:59:33:859 5c8 watchdog - thread 5, hb time 0
18:59:33:849 f00 Time gpu (2): 1950563
18:59:33:869 5c8 Restarting OK, exit...
It looks like the miner app restarts a couple of times as there are a couple of additional logs files that are just 1kb in size with only the following in:
19:01:34:659 b2c
19:01:34:739 b2c ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»
19:01:34:739 b2c º Claymore CryptoNote GPU Miner v6.1 Beta º
19:01:34:739 b2c ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ
It then hangs the system but there is very little info in the event viewer as to why. Once this happens the machine drops off the network and I have to reset it to get it going again.
Something a bit odd with my 290 rigs, if I actually downclock the core/mem to 947/1250, I get a faster hashrate...? at stock and any overclock I get under 3900, but down clocking the cards results in a higher hashrate. Bit odd. I see no hashrate increases by adjusting mem, only changes to the core appear to have an effect on hashrate.
http://i.imgur.com/sIb9vI2.pngIt doesn't work with my 7950 rigs, but I'll take lower power usage from the 6 card rigs any day.
I'm running 13.12 drivers with LBR's mod from
https://litecointalk.org/index.php?topic=11761.msg85946#msg85946 to get 6+ cards running under windows 7. I'll stick with 3.4 for now but anyone else having similar issues?
yes i am mining with r9 290 tri-x for two monts and the best working clocks for my rigs are 947/1250. i have 18 cards are all working a same. i am geting around 720 hashes per card.