So I Have a GekkoScience Hub with their power brick supplying power to it. And running 1 Compac-F and 3 NewPac miners but curious when I tweaked Diff, the Diff selection seemed to drop slightly and in image shown the P: value for NewPac miners is 0 not sure what that represents if someone could further explain or link what all the section are.

It almost seems like the Compac F is starving the NewPacs of power.https://imgur.com/4r3GuPH

So I have been running 5 Sticks 400 Mhz @87 Gh/s. All on a Raspberry Pi 4 4gb.... Zero Issues.

I have to believe that it was Windows 10 causing Zombie effect. Has yet to happen on Pi.

And I can remote in.

**UPDATE**

Raspi 4 All setup, took some tweaking but got it running with All 5 Newpac's.

Currently running 200Mhz @45Ghs/s per stick.

I'll give it a go, TY

I have quite a few raspi's, just noticed I have a 4 w/4gb RAM. Setting up now for CGminer. any Tips for loading software? Are you running an injected version or running Noobs w/installed CGminer?

Which version? How much Ram.

Has Newpac been tested on raspi 4 yet @sidehack ?

This is where I was taking readings

- After Adjusting All to match

- All tested average @43 degrees Celsius @center screw on back of MB

- Stick (1 - 5) .4450 while running for 10 minutes @ 300mhz

- This is the best I can do, let's see How long I can keep running without Zombie reset. I tried using gaming Laptop to run but unable to get it to stabilize (script kept adjusting frequency of each stick. May switch to Raspi.

https://i.imgur.com/jOlKJJJ.jpg

So I have been running experiments with each Newpac(BM1387) stick and its gekkoscience 7 port hub(fan is in port 1). When all 5 sticks are inserted they are in sequence starting at port 2.

I have test each sticks voltage settings all using port 2, on switching from 1 stick to next at times I get close to same voltage reading, but other times when inserting cold I am getting fluctuated readings.

- 1st round I was averaging around .4600v , 2 sticks did read @ .3860v & .4020v.
- cold on some voltage starts low around .2880v & stabilized @ .4000+v
- I am trying to adjust all to around .4500v across all

Questions:

1) Are these reading normal?  (Voltage differences when cold vs hot)

2) What is Normal Running voltage of chips? (Don't want to set too high and damage chips)

3) Should Voltages differ from port to port on hub?

Test Equipment:
     - Brymen BM867s @500,000 resolution on 5v reference device is 5.00301v.

So after some testing, I changed physical USB ports on PC, changed USB cable, and reduced to 4 from 5 sticks as after inspecting 1 of the sticks it looked like a cap or diode on board was touching solder blobs.(removed just to see if it was what is causing issue). However it hasn't stopped but runs alot longer without fully shutting down on 4 sticks. I setup logging and this is what triggered shutdown after running for almost 12hrs without issue other than random resets.


I Don't understand the coding, if someone could shed some light.

Thanx for that info. I will search this thread for the info on my OS. I may consider setting up a RaspberryPI 4 to run script. will be less issues I'm sure.

On a side note. How can I measure voltage changes using potentiometer adjustments? Not saying I will adjust it, but just curious what to watch as far as changes while adjusting voltage adjustment screw.

Thank You @419mining. I am in process now starting adding sticks 1 by 1 and monitoring. Will keep yo posted. So far 1 stick ran 8 hrs without errors.

On a side note. How can I measure voltage changes using potentiometer adjustments? Not saying I will adjust it, but just curious what to watch as far as changes while adjusting voltage adjustment screw.

I have 5 sticks all together, all plugged into 2-5 port 1 has fan. At 100 it Zombies and resets, zombies again and resets, then on 3rd time it will shut down. I tried on 200mhz and 300mhz and same result. My single stick test seems to be running fine currently, has been online with no issue for 3 hrs now. It is set at 300mhz with 69 gh/s and seems stable. Unfortunate I’m not in front of it to take thermals. Probably 36 degrees C. They never seem to go much above this. Will attempt to use another method of measuring later. Any insite to what may be cause of Zombie with 5 sticks @419mining?

I am, and it so happens its a USB Arctic Fan. So its another amp draw on power source. I remote into miner, so I can still see the 1 stick is still running. I’m guessing 8amp brick power supply was never intended to power this many stick miners. So solution maybe to connect using alternative PC powersupply 8 pin connection. Will report back in a few hours as to 1 stick status.

I assume you mean running 1 stick while inserted in hub? I can try that today and allow to run at same 200mhz as a control experiment. I will report later when I get back from work.

The Zombie doesn't occur right away.  I varies, It runs normal for a few hours sometimes other times it seems to happen within minutes, totally random. I check temp from time to time (37c-39c). So Thermal runaway may not be an issue.

I'm Running Windows 10.

Hello All, I am new to using Newpac. I am running 5 total using gekkoScience hub and power brick 8Amp. I find when mining whether it is at 100,200 or 300 it always Zombies. It tries to recover and does a few times but when I come home cmd script is closed and no longer running. Can it be that they are not getting enough power? And if I were to tweak voltage pot is there a way to read what the voltage change is anywhere?