Topic: GekkoScience 2Pac/Compac BM1384 Stickminer Official Support Thread - page 6. (Read 177467 times)

If 2Pacs are dropping out, try adjusting the core voltage up slightly. More voltage tends to mean more stability - but also more heat, so adjust only a little bit at a time.

@Something123 How many are you running per hub? I only have two 2Pacs each on its own Orico P10-U2-BK. When I build vthoang's cgminer with icarus enable and try to just run a single Antminer U2 I still get dead 2Pac. Using Minera on my Raspberry Pi results in dead 2Pac after about 24 hours. So I would have to set it up to restart before then or remember to restart manually, but would sometimes get 0 chips found on restart so I would still have to unplug the sticks.

So current stable setup:
Raspberry Pi Model B Plus running Raspbian Buster Lite Version: September 2019 Release date: 2019-09-26 Kernel version:4.19
Adafruit 3.5" TFT display for the Pi
2x Orico P10-U2-BK each only running sing 2Pac @ Frequency 225 both with vpot set to 1.361v. No HW errors but I do get some rejects, but only like 100k rejects per 7mil accepted running @ combined 49.8 GH/s.

I am getting ready to try to enable icarus to try and run 10 Antminer U2 on a ORICO A3H10-U3-V2, but I have not had much success with --enable-gekko and --enable-icarus working well on Raspbery Pi. Because why not, I have them sitting around.

If I wasn't unemployed waiting on a decision about disability I would definitely get two Gekkoscience hubs along with 12 NewPacs. I would run my two 2pacs on each one of the hubs 2A port and NewPacs on the others.

[Edit]
Yeah, I get weird detection issues. Even if I add the Antminer U2 after the 2Pac. It wants to treat one stick as U2 and the other nine as a single U3.

i been at it for 3 weeks, 3 days out of 3 weeks they ran perfect. Now they are dying with in hours no chips found. i had all 5 of them go down with in 8 hours and just now 3 within an hour. i started unplugging them and re plugging on get the warlock error. back to square one lol

Well, I have been away for along time. My account got hacked about a year ago. I no longer had space to run my miners. I could never get 2Pac's to run with Minera without eventually running into rejects/errors or getting zombies after 24 hours. I also never did get them to play well with my Antminer U2's. A few years later I am unemployed with a little bit more free time(not much as a stay at home Dad). So success in getting them to run stable again(April 2017 I had them going 20 days without error.)
If I just made a place to run the two 2Pac's two years ago, I might have mined enough to get a NewPac and hub. Lol

Thank you sidehack for the info.
thank you

T is Target, or the speed it's trying to run at
P is Plateau or the maximum effective speed cgminer's seen out of it
The percentage is what percent of target speed it's running. 100% is good.

Whatever speed you run it at, cgminer is probably going to round to the nearest 6.25MHz because that's how the internal clock multiplier in the chips works. So 175 gets 175, but 170 would get either 168.75 or 175; I forget if it rounds down or up.

As for hashrate, each stick should level out to MHz*0.11 which means 175 should see 19.25GH per stick and "170" would see about 18.6GH

74.5GH across four sticks averages out to effectively 169.3MHz per stick so if you were shooting for 170 it looks like you got it.

When you first plug in a stick, the exact hashrate is meaningless because it's estimating off the timing of the shares returned, which appear randomly. You want to give it a few minutes to settle into an average.

Since this morning I am down to 74.2 gh/s and down to getting .005 dgb I per stick. I pulled one stick out and plugged it back in and watched it’s hash rate went anywhere from 12ghs to 30ghs in matter of seconds. I will have to pull them all off and adjust mhz on the stick individually to get them more stable. Any idea how to make the CGMiner full screen?

Thank you

In cgminer that i am using for the 2pac what do these mean

Bm1384:02 175.00 MHZ T:175 P-174 (112:223) : 100% WU:93%

the T, P, () and then the percentages after parenthesis

thank you

i have not, he was running them at the same settings i am trying to 150-170.

Have you touched the voltage pot at all? What settings was the previous owner using?

yes, i have 2 artic fans cooling them. I did buy them used and were working properly for previous owner. Currently they been running strong for last 3 hours with out hiccup @ 74.5gh/s(was at approx 76gh/s). but i am still receiving less DGB  .010 -  .011 before i was getting .013

Have you got a fan cooling them? Did you buy them second hand?

good morning,
I purchased my 4x2pac BM1384 usb miners. I had thought time getting them to work properly. After 3 days i finally got them running perfect fallowing everyone's posts on here (thank you). I am running them at 170 mhz @ approx. 76 gh/s. Yesterday i played with mhz and it was running unstable. Now i placed them back on 170 and i am getting avg 74gh/s. Any idea what might of happend. Hw-0 wu 1040( 100% for most part Wu:95-100 for each). Thank you
To add to the post i was getting .013 of dgb and now iam only getting .009-.01
Thank you


Now its saying about hour after 0 chips found on 1 or 2 of them, now i am back to square one lol

good morning,
I purchased my 4x2pac BM1384 usb miners. I had thought time getting them to work properly. After 3 days i finally got them running perfect fallowing everyone's posts on here (thank you). I am running them at 170 mhz @ approx. 76 gh/s. Yesterday i played with mhz and it was running unstable. Now i placed them back on 170 and i am getting avg 74gh/s. Any idea what might of happend. Hw-0 wu 1040( 100% for most part Wu:95-100 for each). Thank you
To add to the post i was getting .013 of dgb and now iam only getting .009-.01
Thank you

Hi All,

I'm new new to this and trying to feel my way through an Rpi 3 b+ set up with two 2pacs on a powered hub to start off with.  Apologies if I have overlooked this on previous posts but is there an easy set up guide for cgminer on rpi for 2pacs?   Any links or pointers appreciated.  Please go ahead and assume that I have no knowledge whatsoever 

TIA

hmm I have one BM1384 running and it works great no problems yet


but how looks the command line when I put more 2pacs on my powered hub is it still one line or do I have to put another line in my *.bat file

I will soon buy more of these devices, I have good experience with the seller so that is no problem

looking forward to expanding this

I had no idea. Ordered one and it arrived today. Excited to test it out! Thanks Sidehack.

And its a superb piece of engineering/electronics!!

I make a USB hub great for running these sticks, and it takes in 12VDC.

Hi Sidehack

It's 12v coming out of the charge controller. I drop this to 5v with a DC/DC currently. Thanks.