Topic: GekkoScience NewPac / Terminus R606 (BM1387) Official Support Thread - page 109. (Read 61906 times)

Ive got an Iltra kaze 120x38mm fan somewhere and a duct from an old server, ill have to get it hooked up somehow and see how goes. Cheers for the info though, given me some hope of getting them above 275freq and bumping up my lotto chances  

I have:
1 Compac
1 2pac
4 2pac Seconds
1 Newpac

All currently running at 150 mhz.

They are on stands with active cooling and the normal USB 5V is bypassed to use a separate 60A 5V power supply.  (I have no power issues from crappy hubs - they get all the juice they need)

Two of my 2pac Seconds are flaky (the good one just zombies often, and the bad one has a solid white light but still hashes about 75% as good as normal and also zombies often), so i would like to run them at a lower speed - they tend to run longer before crapping out at lower mhz.  aside from just running those on a separate pi, is there a good way to target it's serial number or something?

i know there is the --USB command, but as far as i can tell that just picks up whichever one happens to be listed first?

Personally, I use a nice 6" fan I picked up at my local ACE Hardware store, and this fan on Amazon is almost just like mine: http://a.co/d/hD9RkyR. It wasn't the least expensive fan, but you get what you pay for I guess. Occasionally, I also use a 120mm PC case fan that I wired to work with most HP server PSU's (or anything that will accept a 6-pin PCI-e cable connection). That fan moves air with some very serious force at full power, hence the 5A rating, and can be purchased here: http://a.co/d/g9pJzEV.


I have no idea what any of the temps are, but they are just barely warm to the touch. As others have already mentioned, all of my NewPac sticks run MUCH cooler than any of my 2PAC sticks ever did (even when the NewPac sticks are running at 500Mhz).

Thank you, both yours and Sidehacks help and patience are greatly appreciated

Will get this done as soon I can get out of the office, I miss 4 day weeks...

Sounds like the text UI library is not installed by default in Ubuntu 18.


clone and build again afterwards.

I'll update the first post accordingly.

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Yes, linux only.
Windows support has recently been discontinued upstream.   
I'll continue to post a link to the binary so long as it's still build-able.

Did you install all the dependencies, specifically libncurses5-dev?

Linux update?

Only data I see are the accepted shares and new block found announcement mostly. The average hash rates of all the sticks flash at the bottom every few seconds.

I have not figured out how to remote into the linux computer yet or I would upload a screen shot.

cgminer does display each device's hash rate. What are you seeing?

Thank you for fixing the datetime display. I was having flashbacks every time I glanced over and saw that it was 1970-12-02.

is there a way to have cgminer display each device's hash rate or another way to monitor them aside from individual sessions?

Update: Went back to the previous release as I started getting the "missing nonces" and hashrate was lower after about  2 hours of running it.

Not sure what is happening but I know that since I switched to a Linux machine I had not seen any sign of the nonces issue.

I really thought it was a windows 10 thing now I have no idea unless something was left out in the new release by chance.

I've had this build running on my sketchiest tester with the sketchiest sticks (it's been a billboard example of the kind of instability and low hashrate folks are complaining about), without AB enabled, for the last 8 hours and I'm seeing 99% target hashrate and no zombies. Try it out.

A new build is available (9d66fd3):

Windows binary: cgminer-4.11.1-windows-gekko-9d66fd3.7z

  - Fixed datetime display.

  - Closed gaps in data transmission to reduce line power fluxations.
    - Spin off dedicated work tx thread.
    - Switch from blocking get_work to get_queued.
    - Send null work to keep asic busy during network glitches and when pool is reacting to block events.

Reminder best practice update process: keep old working (or favorite) build readily available.

• move the existing "cgminer" folder to "cgminer.yyyymmdd"
• clone repository to create a new cgminer folder as noted from first post instructions.

I agree that the culprit isn't the NewPacs or Sidehack, as I have running a restart script since the days of .333 G/h USB miners.  I still have my old .bat restart script for Windows archived. If anyone wants me to post it, I will.

Restarting loses only seconds, where if it goes offline you may lose minutes or hours.

Yea, and what kind of temps are you seeing with said cooling. What are your ambient, pcb, chips and post air temps?

You could get 1Ths for under 150 watts on 8 sticks at 500MHz, lol. It's about 300MHz higher and hotter for sure than I would feel comfortable leaving alone in the house.

What sort of cooling did you use to get them running at that speed and stable?

Unfortunately, I am on Windows 10.1 and can't help much with running these sticks on linux or other OS's. I restart my PC and cgminer at least once every 24 hours, otherwise my sticks will generally start experiencing performance degradation and may even go zombie (similar to the problems a couple of others seem to posting about). I remember a program from back in the day when USB miners were your only option to mine Bitcoin, called "cgwatcher". The program was made solely to restart cgminer at intervals set by the user. Having said that, I would presume the culprit has something to do with cgminer.

The solution to the problem seems to be the same for everyone - either manually restart cgminer and/or run a script to do it automatically for you. Also, running them at higher frequencies only seems to make matters worse, and may cause working sticks to suddenly go bad. As someone else previously stated, I have also noticed that these NewPac sticks run MUCH cooler than the 2PAC sticks (although I use the same powerful fan for cooling regardless).

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Now to be a bit hypocritical. After seeing others run these NewPac sticks at such high frequencies, I began running some very closely monitored tests. The results are simply amazing! Using two Plugable USB3.0 7-Port 60 Watt USB Hubs (two sticks in each hub), I was able to achieve a hashrate of over 100Gh/s per stick. In order to make all four sticks run with stability, it took many voltage adjustments to get it right. All x4 sticks ran smoothly until I purposely shut cgminer down to change the frequencies back to stock. Here is a screenshot of my results:



- click on image to enlarge -

Oh yeah they depreciated the "-e" for some reason in 18.04 LTS. I don't know why. I started getting this error message when I upgraded from 16.04. It will still work, but might not work on future versions of Ubuntu (18.04 is supported for 10 years). The current manual still shows the "-e" option but doesn't give any alternative, other than "--command=", which is also depreciated. What the error message suggests does not work and it doesn't work without the "-e".  I assume this is a bug in gnome-terminal that will be fixed or an alternative solution will be found if and when they actually remove it.

Awesome! I got it to work on the first try. I did see that the first window mentions that the "-e" is deprecated. Is there something else that should be used like "--" in front of the gnome-terminal?

Open terminal and run the following command from the directory you saved your script to (moving it to the home folder first is easiest, or navigate to your desktop folder):


You can also add the script to your startup applications once you've tested that it works.

will do, thank you

I left the voltage at 860mV and tried all the way down to 50MHz with no success.