I am having an issue with CGMiner. I've been mining just fine with 2 X 7950s @ around 1.1MH/s for BTB. I recently received risers in the mail -1x to 16x. I have not received my 16x to 16x risers yet, so I am only running 3 GPUs. All Gigabyte 7950s. All new. Haven't had any problems with them except some SICK/DEAD statuses if I let them run too hot for too long. I've realized impatience waiting for all the risers is not worth burning up $1000 worth of GPUs so I am keeping them under clocked for the moment.
I use Team Viewer to monitor the rig while I am away from my home. It usually works flawlessly. The android app is nowhere short of amazing.
I was running Catalyst 13.4 / APP SDK 2.8 / CGMiner 3.1.0. I had been mining for 5 days straight with minimal problems. My only problem was cooling. I have since redesigned my Crate Rig to be more efficient for cooling. I will have to wait until I can put all 4 X 7950s on risers though until I can run at full force and at a manageable temperature.
Now, my CGMiner issue.
With my original drivers stated above, I was having my KH/s range with a -20% +20% range. I closed out of CGMiner to give the rig a moment to rest(again, not trying to burn out my hardware). When I started CGMiner back up, I would get different errors every time. 'Could not connect to pool', 'pool 0 not providing work fast enough' 'Could not connect, make sure the URL is correct' and every other error I know about that deals with trouble connecting. The pool would connect rarely with a slow to nothing connection. I then began getting multiple HW errors for each card. After a couple of minutes the rig was submitting shares. This didn't last long as the cards were heating up so I wanted to fix the connection and HW errors for good.
I was having issues with my ISP so I tethered my Nexus 4 with non throttled HPSA+, but the connection errors are still being shown. Is there something I am missing? Does the currency you intend to mine, have to have the corresponding wallet installed to the PC with the block chain fully caught up? I didn't think so because my BTB wallet was having trouble syncing with a time error. I was still able to mine BTB through binarycoins.eu . I also emailed support for binarycoins.eu and he said that his pool was submitting work and others had no problem connecting. I also tried notroll.in for LTC just to see if it was a computer error or remote server error. All help and suggestions are highly appreciated.
I am running Catalyst 12.8 / APP SDK 2.7 / While trying CGMiner 2.8.0, 2.8.2, 3.1.0, and 3.1.1. Also, last night I installed a fresh copy of Windows 7 64x just to see if a Windows update caused the error. Before trying a fresh install, I tried rolling the system restore back and installing all of the above (recommended for best performance) drivers.
These drivers were in a last ditch effort to fix my pool connection issue. They actually blew me away with the capability of the cards. With the one card mounted to the outter PCI-E slot and the one on a 1X to 16X riser mounted to the top of the crate, both run cool. The main slot does not. In a short time of testing even though the pools were not connecting, the cards would start hashing. I was able to push STEADY 700+KH/s for each RADEON 7950!! I thought these cards were only capable of 630KH/s max for litecoin based coins! I can't wait to get this connectivity issue fixed and have my rig running a solid 3KH/s !!
If you guys need to know the rest of my HW:
Seasonic Gold 80+ 1250W Modular
Corsair 4GB DDR 3 1666MHZ
ASUS M5A97 R2.0
500 GB Laptop Drive (soon to be replaced by a 60GB SSD OCZ)
Sempron 145 O/C'd to 3.6 GHz stable. MOBO has built in auto O/C features.
MICRO USB EDIMAX WIFI N
StartMining.bat is pretty generic
cgminer --scrypt -o
http://binarycoins.eu:9333/ -u MyMiner.1 -p x
with a few settings added(cant connect to PC at the moment as my ISP COMCAST has their heads up their arses. But I do know the settings I have can hash just fine at good and consistent rates, my main issue is the pool connectivity.
If I missed any details, let me know and I can provide them.