This sounds like a riser issue. Try rotating risers or trying different riser cables. It may fix the issue. Because this is a cross-OS persistent issue, it screams hardware or bios. I'd try updating the bios too, or even reflashing to the current or previous version (be careful, this can introduce incompatibility to some CPUs!)
Hope you find the root cause ...
EthOS does not support both AMD and NVIDIA cards on the same rig. It never will. As far as I'm aware, none of the linus or ubuntu builds do. Windows 10 supports up to 8 of both, but usually with a drop in performance, and difficulty with individual card settings.
Follow directions at http://ethosdistro.com/kb/#support for any additional questions.
It looks like you just started using miner 2; if your local miner gives you a hash rate, you should believe that value over the dashboard for at least a few hours. There aren't enough data points for the dashboard to accurately compute approximate hash rate. I see each one has an average hash rate of around 35 MH/s right now. The increase/decrease thing just ...
I've been GPU mining for over a year with multiple rigs using a variety of cards from RX 470s to GTX 1070ti.
I have not noticed a depreciation in performance over the year. Performance in this case is measured by outputed hash rate, watts used and up time.
Each of those three parameters have stayed constant over the past year.
Now if by depreciation you ...
Pre-built miners will already be nearing end-of-life, and end-of-profitability. Basically, any smart miner will use up most the profits on a mining rig, and then sell it right before it is useless, in order to scrape the maximum amount of cash from a miner. (So don't be the sucker who buys this miner from them).
You are way too late to the mining party, ...
Yes, he can cheat.
To figure this out, do the following:
Review the configuration file of the miner (ask the guy to show it to you). Make sure all addresses their are yours.
Make sure that there are no cron jobs that (re-)launch the miner process at specific times, e.g., late at night or at other times when you can't access the rig.
Track your income. ...
Not any better than GTX1070. It's because it's 1080 is DDR5X, different processing speed or something iirc.
I'd suggest getting a GTX1070 for price/MHs.
I last heard 1080 gets 25-27MH/s overclocked. While GTX1070 can go above 31MH/s.
I mine at 29.5MH/s with Claymore miner. Using it for personal PC as well. Hope it helps.
I tried it and here's what I found out:
Unfortunately the motherboard wouldn't work with the GPU and the powersupply that came with it was proprietary (Dell) and couldn't be used with any other motherboard. I did buy another old motherboard for cheap and it worked fine. So no, as long as the components don't slow down the graphics card then you will have no ...
This is normal and due to the mining difficulty rising in response to the additional hashpower being pointed at Ethereum.
As Ethereum becomes more and more profitable to mine, the additional miners make it harder (more difficult) for other miners in the network to find shares and earn eth from pools or from solo mining.
The minimum card is is 2 GB at the moment. From What is the current DAG size? When do we expect to hit GPU limits?, this limit may be exceeded around mid-Dec 2016, a little more than 1 month away.
Combining cards with lower RAM sizes does not work. Each card will need to have at least the minimum RAM size.
The RAM size does not make as much difference to ...
Perfs are almost identical but your ROI will be much better with Ubuntu as it's a free OS. I assume you won't run Windows without a license. Personally I prefer Linux as it's much more easy to setup and configure and works without maintenance. It's also easy to script. Use Ubuntu 14.04.
Yes you can mix non crossfire and crossfire cards. Just take care to ...