Topic: [GUIDE] GridSeed 5-Chip USB, Blade & Black Miner Support/Tuning - page 74. (Read 308807 times)

Hate to be posting this (especially on Pi day!) but here are my results of using the Pi with 17 miners.

Getting the Pi working was a breeze! Simply loading the OS (Raspian) and logging in through SSH (after the initial menu config) allowed me to compile cgminer just like on Ubuntu server....although a LOT slower.

After modifying the text file for stability (as posted in this thread) I fired up cgminer and it started hashing. Things were looking good and I was elated so I went to bed. I did notice that on the Pi cgminer takes from 10-25% CPU sometimes shooting up to 50%. Figured that was fine as long as the little guy was working.

Little backstory. Before using the Pi I was successfully mining using a ThinkPad laptop with Ubantu server. I took two screen shots in 24 hour intervals on that computer. First was at 800 and the second 850.

Back to the Pi...so I woke up and checked in on the Pi. Was disappointed to see some of the miners were not hashing as fast and that the average was low. HW was also MUCH higher.

Left it hashing and went to work.....checked on the pool to see how it did overnight...not good:



You can see where I started to use the Pi at around 2:00 AM. For some unknown reason it went WAY down from around 5ish to 8ish. Overall the hashrate looks lower than the Thinkpad.

Will keep it running on the Pi for another 7 hours but thinking that it will be going back to the store. I'm sure it beats using the controllers but perhaps it's just not fast enough.

Not that it matters for scrypt...but why do you have the miners bowing down? Those shelves do not restrict allow airflow blowing up. Would think that would be better especially for dual mining?

Thanks, will try it out. What about the fan from PSU? I do think it's not necessary to cool the PSU with usage of 100 watts. Or how to attach my own PSU?

Write out \\.\  before the com port, e.g. \\.\COM**, and do not use more than one Gridseed miner per instance of cpuminer.

I can't get cpuminer to see my miners for some reason. Just says not found.

And another question: is it possible to detach the fan from that LOUD psu? There is really no point of it and it creates so much noise. And how to connect miners to a outside psu?

heard from people desoldering them ...

I would like to detach the coolers on the gridseed miners, but I'm not a fan of just cutting the wires somewhere. Are there other options that people here have used? Is it for example possible to detach the wires inside the coolers or something? Or is everyone here just cutting the wires?

i`ve managed to compile & run BFGMiner on my minepeon and I didn`t experience any lockups for 10 hours with 10 miners

https://bitcointalksearch.org/topic/m.5689374

there may be a bug still... always the pool dif is set/reported to 0

Last couple times I had left an SSH session alive with top running, this time I haven't and it's been up for about 4 hours so far...

I did check and the stability fix has been applied to this image already.

Anyone having stability issues with this image?  Seems that after 2-4 hours the pi locks and I have to hard reset it.  This has happened 3 times now.

What is wrong with my config? Cgminer says Start cgminer with -T to see what failed to load but when I do that, I don't see any errors..

{
    "pools": [
        {
            "url": "stratum+tcp://ltc.ghash.io:3333",
            "user": "worker.something",
            "pass": "x"
        },
        {
            "url": "stratum+tcp://ny.clevermining.com:3333",
            "user": "worker.something",
            "pass": "x"
        }
    ],
    "gridseed-options": {
        "baud": "115200",
        "freq": "850",
        "chips": "5",
        "modules": "1",
        "usefifo": "0"
    },
    "api-listen": true,
    "api-mcast-port": "4028",
    "api-port": "4028",
    "expiry": "120",
    "hotplug": "5",
    "log": "5",
    "no-pool-disable": true,
    "queue": "1",
    "scan-time": "30",
    "scrypt": true,
    "shares": "0",
    "kernel-path": "/usr/local/bin",
    "api-allow": "W:127.0.0.1"
}

On another note is there a way to mine with different gridseed set at different frequencies? Without having 40 windows open? lol

 

Lucky!

How much you making a day?

Ill just leave this here 

My rig...

http://youtu.be/LQ8HzyMiLd0

Cpuminer is the answer

Anything over 16 miners will get my cgminer to crash. Why so? It will just freeze and then crash. 16 miners work fine. Can anyone help please?

Unfortunately, I know enough to be dangerous, but not enough to be helpful.

I followed the steps in "Part 5: Throwing it all away and using A:Linux (and PI) B:Windows" that links to
https://bitcointalksearch.org/topic/m.5448813
In Part 5A.1: Linux, I could build cpuminer, but it could not build cgminer (I skipped over the ubuntu 13.10 instructions). The cd /home/miner/usb-miner/software/cgminer directory was not there, but I did find one at cd /home/usb-miner/software/cgminer. But, that directory did not have the autogen.sh file.

Is it ok to follow these instructions instead for cgminer:
  *Cgminer for Scrypt on Linux: https://bitcointalksearch.org/topic/m.5538853
https://bitcointalksearch.org/topic/m.5538853

and then continue with the Part 5A.1 instructions?

Or, should I just abandon what I've done and follow the 2nd set of instructions?

Got it. I need to read up on Screen. Seems like it spawns a terminal with the name you give it, and that will keep running independently of the ssh session.

changing the ports didn't help.  Whats really wierd is if I let it sit long enough, they all enventually submit shares, except the power usage fluctuates alot, 140 watts up to 220, and back down.  Almost like the Pi just isnt fast enough to run 28 in cgminer. Maybe the code is less cpu efficient than cpuminer.  I get the feeling it cant keep up and miners are going idle and then back online, which would explain the power fluctuations.

Hello everyone!
This data will definitely help with Tuning your GridSeed 5 chip USB miner/s.

I just received this data from GRIDSEED via HASHRA.com today. 3-13-14
I'm paraphrasing for general clarity.
I've also added some of my own observations based on direct experience with my own GS5's.

GRIDSEED GS3355 5 Chip USB Miner - Flashing RED and GREEN LED's - What They Actually Mean.

All timings are either approximate or exact, if not darn close!
Your clock speed may vary slightly.

GREEN flashing LED means - 5V is ON / drive electronics are powered up.
GREEN LED is ON for 1 second, OFF for 1 second.

RED flashing LED - ON 3 seconds / OFF 3 seconds means - Miner Is Hashing /

Processing Data.

RED flashing LED - ON 60 to 70 seconds - OFF 60 to 70 seconds:
Miner is Not Hashing / Processing Data.

If Fan is OFF and RED LED IS STUCK ON or OFF i.e. not flashing:
12V is OFF - 5V is ON.

FAN is ON but no GREEN OR RED LED's are flashing ON or OFF, means:
12V ON - 5V OFF.

When first powering the miner on, the best sequence I have found is:
First, 12V ON
Second, 5V (USB POWER) ON

After 5V power is turned ON, after a few seconds, the GREEN LED's will start
to flash ON/OFF as written above.
After 12V power is turned ON, in about 60 to 70 seconds,
the RED LED's will start to sequence ON/OFF as written above.

Hope this helps!
Peace
Wolfey2014

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