Topic: GekkoScience NewPac / Terminus R606 (BM1387) Official Support Thread - page 108. (Read 61321 times)

I am in the process of repurposing an L3+ frame and fans to cool the Sipolar and 7 sticks (will be 8 when I get one repaired/replaced). If the higher rates are recommended as safe then this would be a better cooling setup.

Would it be worth trying to reprogram the L3 controller?
Not sure if I could use it to control the fan speed as needed or just hard wire them into a limiter type switch.

No problem, I enjoy carefully "playing" with/tuning these sticks. I have also become very familiar with how to use them over the years, which definitely helps with overclocking. Keep in mind I am using two separate USB hubs, with x2 sticks in each hub (if I attempt to add a 5th stick at high frequencies, everything begins to fail). Also, I am using the Plugable USB3.0 7-port 60 Watt Hub, and have experienced better results using USB3.0 than USB2.0 or lower. Lastly, I have found that voltage adjustments on the NewPac sticks do not make big differences like they do on 2PAC and COMPAC sticks.

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I am able to get over 100Gh/s per stick, as seen posted earlier in this thread here: https://bitcointalksearch.org/topic/m.48500637. There are so many variables, and this will make actual achievable speeds a bit different for everyone. With the latest cgminer vh/gekko build released yesterday here: https://bitcointalksearch.org/topic/m.48503019, I am getting better results than ever before!

Can I run cgminer from separate directories to get 2 sessions to restart every 6 hours or is there different code for doing this?

Tweaking the voltage should be done with some measuring tools available to properly undo.

The stock value should provide the chips enough voltage to handle up to 600MHz.

The plugable are noted to provide 1.5A per port or 7.5W.
7.5W can get you in the range of 275MHz without asicboost.

Pulling more power than the hub can provide will be one cause of the symptom you are seeing.

Adjusting the pot/vcore higher will increase amp/watt usage, effectively lowering your max achievable MHz instead.

Cant seem to get mine to run nicelt past 300mhz the hashrate drops to 5gh then back up to 50gh ish with an average of just 30gh at 350mhz. Using a plugable 7port hub. Maybe i havent tweaked the voltage enough. The pot flat spot is roughly at the 10 o’clock position if you hold it with the heatsink at the top and usb connector at the bottom.

Sidehack quick question, What is the max supported speed on the NewPacs?

I am seeing these advertised by yourself and others for 28, 100, and 135gh/s. I know that you said before that you tested them at 200MHz for 45gh/s.

It would seem that you have established or are still working on a higher stability rate with proper cooling and sufficient power. There is also the powered Hub your working on that I suspect for running these at faster speeds.

Update: running the latest build and finally able to connect to Kano.is but still unable to connect to pool.ckpool.org for some reason.

While I might not use your restart script this weekend, it would be good to have in my back pocket... So I for one would appreciate it being posted here. Thanks - G

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For me, a half dozen NewPacs arrived today from minefarmbuy. (Thanks for the good pricing and great service). So now there's a total of 9 NewPacs on my Eyeboot USB3.0 powered hub - all are running at 400MHz (a step down for the original 3). They are running in two sessions of cgminer so one has 5 NewPacs and the other one has 4... All have been running solid for the first 5 hours - Expected hashrate each is 91.20 and 8 are running within 1% of that. One of the new arrivals is running at 70.98. But it has the lowest number of Hardware Errors...! I use a third cgminer instance for 2Pacs on the same hub. My Windoze10 gets wonky if I use a fourth instance, so there's no way I can --usb :1

I'm waiting on a couple of USB2.0 Hubs to add in, so the only thing I'll be doing this weekend is trying to push these NewPacs a little harder... The original three had been running well for the last 3 days after I had bumped them from 450 to 475 and two additional fans arrived today as well... All 9 NewPacs are running cool at 400MHz... ambient temperature is about 68F. I can hold any of them without any fear of burnt digits... For my 2Pacs, I can touch them but wouldn't want to hold them. They are running at 225MHz.

Thanks to GekkoScience and sidehack, vh and -ck, and all of you, for getting me to my first night of pushing over the 1 Th/s mark! It feels pretty good... and that will have to be a good enough excuse for me to test a few sips of Scotch... so to all a good night...
If you listen closely, you can hear the next block solve!

ok I have installed libcurses5-dev and rebuilt cgminer. restarted just in case

I have kicked it off with:


I am still only seeing accepted and detected new block. The average of all the sticks is popping up at the bottom.

was there a flag/switch (not sure what they are called) that needs to be in my launch string?

https://i68.tinypic.com/mcvsy9.jpg

Should I try downgrading to U 16.04 LTS?

Or start over and rerun this whole code:

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.