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Title: too many incorrect shares on ETH Post by: stef_stef on May 15, 2017, 04:02:46 PM Hey guys,
I am running 5 rx480 nitro+ 4gb cards on a h81 pro btc board. What I am concerned about is the amount of incorrect shares I get. Within 24hrs I had more than 250 split between 3 cards. They are running modded bios with 1625 straps copy, at 1850 mem and 1050 core clocks, at -90mV and +20 power limit. The has rate hat I am getting is 27.5 MH/s per card. Power consumption off the wall is 670W. I did reduce the difficulty on some of the cards to 6. That kept the same has rate but lowered the number of incorrect shares a bit. If I keep it mining for more than a few days, the effective hashrate drops significantly, and I am forced to restart the rig, so it gets back on track. My question is, should I be worried about the number of incorrect shares? How much is too much, and can I do anything to increase the effectiveness of my rig? Thanks Title: Re: too many incorrect shares on ETH Post by: stef_stef on May 15, 2017, 06:58:46 PM Incorrect shares usually happen because unstable overclock. I think you should try modify GPU setting and test it again. Anyone to recommend some stable settings? I am running a pretty low clock both on the core and memory... Title: Re: too many incorrect shares on ETH Post by: doktor83 on May 15, 2017, 07:45:08 PM bad mem straps can make this happen too
Title: Re: too many incorrect shares on ETH Post by: stef_stef on May 15, 2017, 07:47:06 PM bad mem straps can make this happen too What are some normal number of bad shares to be expected? Ideally i know it would be 0, but there will always be some Title: Re: too many incorrect shares on ETH Post by: eth4lyfe on May 15, 2017, 07:49:18 PM bad mem straps can make this happen too What are some normal number of bad shares to be expected? Ideally i know it would be 0, but there will always be some Wrong, I'll run mine for a week without crashing and will have 0 invalid shares, only thing expected would be some stale shares. Invalid (bad) shares means that there's a problem. Title: Re: too many incorrect shares on ETH Post by: stef_stef on May 15, 2017, 08:45:01 PM bad mem straps can make this happen too What are some normal number of bad shares to be expected? Ideally i know it would be 0, but there will always be some Wrong, I'll run mine for a week without crashing and will have 0 invalid shares, only thing expected would be some stale shares. Invalid (bad) shares means that there's a problem. That is encouraging for me.... Can you please share you settings if you are running a 480? Title: Re: too many incorrect shares on ETH Post by: RentGPU on May 15, 2017, 08:55:36 PM Hey guys, Check windows parameters , i remember my first mining rig i have too many unstable hashrate due to sleep time and windows maintenance and action center , i remember that windows maintenance uninstalled my gpu drivers while mining.I am running 5 rx480 nitro+ 4gb cards on a h81 pro btc board. What I am concerned about is the amount of incorrect shares I get. Within 24hrs I had more than 250 split between 3 cards. They are running modded bios with 1625 straps copy, at 1850 mem and 1050 core clocks, at -90mV and +20 power limit. The has rate hat I am getting is 27.5 MH/s per card. Power consumption off the wall is 670W. I did reduce the difficulty on some of the cards to 6. That kept the same has rate but lowered the number of incorrect shares a bit. If I keep it mining for more than a few days, the effective hashrate drops significantly, and I am forced to restart the rig, so it gets back on track. My question is, should I be worried about the number of incorrect shares? How much is too much, and can I do anything to increase the effectiveness of my rig? Thanks |