I advise to you not to mine this coin. It's hard to mine and the price continue to drop down since begin of january.
If you want to mine neoscrypts coins, i advise you FTC or TZC. Innova, CRC, GBX, VIVO are shitcoin or emptycoin that are some copy of the same coin whose name I have forgotten...
FTC and TZC are more actives (mostly FTC). and they are profitable from long time.

Is there some sort of procedure to to get the watt, memory, clock numbers or just trial and error ?

 My machines restart after 100 hours or once a week after 50hrs... kinda hard to do trial and error

https://preview.ibb.co/e8BWp7/gpuinfo.jpg


i know that but how does one know to set the right settings ? is there some math involved ...

It is definitely trial and error and it varies per GPU MFR/Model and per algo. What are you mining, and what are your current settings (PL, Mem OC, GPU OC for each GPU Model)? With that information, we can probably give you some guidance.

EDIT: I now see that you have quite a mix of GPUs on that box (1080 Ti, 1080, 1070 and 1060). For best stability, I have found that rigs only contain one model of GPU tend to be way more stable. Getting that mix of GPUs to be stable is going to be quite difficult.

Is the IGP, integrated GPU disabled in bios ?
Latest stable nvOC is 19-2.0 :

nvOC 19-2.0 Shrinked Image


Update and recompile miners:

If its not solved :

Hi,

Is it possible to have approximatively the same behavior than NiceHash on Windows, by choosing coins we want and having a profit switching with NiceHash?

edit: Yes, I saw the SALFTER_NICEHASH_PROFIT_SWITCHING coin, but I don't understand how it works because there is no setting.

 yeah im building another machine try to organize them.  Do your rigs restart the miner 100 hours plus, or do they work flawlessly ?

this picture shows all the PL, Mem OLC, GPU OC
https://preview.ibb.co/e8BWp7/gpuinfo.jpg


right now i mine ethereum but one i separate the 1080's ill mine zcash  

It depends upon the algo actually. On equihash, my rigs have miner uptimes of many days, a couple of weeks even. However, there is a also a heat factor. I found that they were more stable during the winter months when I actually used them to largely heat my house by dispersing them to a few different locations. If you have a stable pool and the right settings this is possible. Also, it takes time to determine what the right settings are. I typically tolerate a miner restart every 40 hours or so worst case.

The first thing to do is get your power levels set appropriately. I like to run mine fairly efficiently so I use 180 watts for my EVGA 1080 Ti's and 115 watts for my EVGA 1070 SC/SC2's. I also have one MSI and one Gigabyte 1080 Ti and those suckers love power so I have to run them at 225 and 200 watts respectively. Once you get your PL's set, then you can worry about your clocks. While I only mined it for a few days, for ETH, I was using Core OC of -100 and Memory +1100 on my 1080 Tis. For equihash with EWBF miner, I use the same PL and change the Core OC to 125.

Hope this helps.

EDIT: One other thing to track to is why your miner is being restarted. If you are using the Community Release 19-2.0, see the logs in ~/nvoc_logs. watchdog-screenlog.0 will tell you what the watchdog did and why and if you want more detail, see the miner log which is screenlog.0.

new TO UNIX & MINING tried both there and restored xorg still have same error please HELP

01:00.0 VGA compatible controller: NVIDIA Corporation Device 1c81 (rev a1)
03:00.0 VGA compatible controller: NVIDIA Corporation Device 1c81 (rev a1)
04:00.0 VGA compatible controller: NVIDIA Corporation Device 1c81 (rev a1)
05:00.0 VGA compatible controller: NVIDIA Corporation Device 1c81 (rev a1)
07:00.0 VGA compatible controller: NVIDIA Corporation Device 1c02 (rev a1)


/home/m1/3main: line 196: nvidia-smi: command not found


ERROR: Unable to load info from any available system



ERROR: Unable to load info from any available system

sudo: nvidia-smi: command not found

LAUNCHING:  MINER TEMPCONTROL

process in screen temp, guake terminal Tab (f12), ~/nvOC temp-log

/home/m1/3main: line 952: [: 0: unary operator expected
Auto Start Miner Set to YES