Asic scrypt mining

Ubuntu indikátory:

BTC Version

LTC Version

How to setup
Go to directory and do
    sudo sh

If you fork it just give credit where you forked it from ie please dont just edit the LTC/BTC donation address and post somewhere else.



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<div id="btc-quote">div> <script type="text/javascript" src="//">script>  ---  Raspberry Pi a bfgminer settings: 


March 16, 2014, 01:11:59 AM
Reply with quote  #1

I want to know how and alot of people want to know how.
a nice and easy guide.

I will just stick this here for quick reference for people to get there gridseed miners up and going quick.

Ok, so first things first, disclaimer, I’m not a Linux guy, so please forgive me if I’m making a dumb mistake here.  I’ve also never used bgfminer so I’ve got that working against me as well.  

Thanks to everyone who helped me figure this out…here’s a revised version of how to compile bfgminer for a RasPi…

Steps I took to build BFGMiner from source:

//update my RasPi first

sudo apt-get update 

//saw this on the linux build instructions, so I presume I need these as pre-requisites to compiling bfgminer

sudo apt-get install build-essential autoconf automake libtool pkg-config libcurl4-gnutls-dev   sudo apt-get install libjansson-dev uthash-dev libncurses5-dev libudev-dev libusb-1.0-0-dev libevent-dev 

//cloned nwoolls version of bfgminer which has beta support for the miners in question

git clone -b feature/gridseed-support 

//build it

cd bfgminer  ./  ./configure CFLAGS="-O3" --enable-scrypt --enable-gridseed  make  sudo make install  sudo ldconfig  sudo nano bfgminer.conf  

//make the bfgminer.conf file.

{ "pools" : [         {                 "name" : "MyPool1",                 "url" : "stratum+tcp://",                 "user" : "myworker",                 "pass" : "x",                 "pool-priority" : "0"         } ], "api-allow" : "W:,192.168.1/24", "api-listen" : true } 

//trying to run it

sudo ./bfgminer -S gridseed:all --set-device gridseed:clock=850 --failover-only --scrypt -c bfgminer.conf  

Reduce Noise & Electricity on Your Gridseeds

I had about five of the Gridseed miners and found out quickly that they are extremely loud. Just watch the following video and wait until he zooms in on the watt meter. As he gets closer to the meter, the camera picks up the background noise of the Gridseeds:

Ultimately I removed the Gridseed fans as the fans are only necessary if you’re going to mine Bitcoin or other coins using the sha-256 algorithm. But I don’t think it’s a very good idea to use Gridseeds to mine sha-256: the algorithm is power hungry, it generates lots of heat (hence the need for the fan) and it’s really not very profitable at the scale you would be mining at with the Gridseeds.

Gridseed no fans

You can see the Thermaltake fan on the second level below the Gridseeds (the Raspberry Pi controller is on the first level):

Gridseed  external fan

Don’t Bother w/ the Fans for Scrypt Mining

For scrypt mining, running the Gridseeds without fans has a few benefits:

  • Power consumption is cut from 8 watts per unit to around 4 watts. A power consumpiton of only around 20 watts to run all 5 Gridseeds is great compared to gpu mining rigs & other asics. You can leave it on without worrying about setting aside a portion of your profits for the energy costs.
  • It’s quiet.
  • The thermaltake fan is completely speed- adjustable. It’s a great fan for about $20 that I recommend highly:

I honestly didn’t even need the external fan and could’ve left them near an open window, but I thought the adjustable fan would be good insurance. The Gridseeds have proven to run steady without their fans:

Gridseed  with CGMiner

Gridseeds running CGMiner




If you are using the 5-chip Gridseed ASIC devices in Scrypt only mining mode you probably already know that they are using about 8W of power when overclocked. But what about optimizing the power usage even more by removing the noisy fan that might be needed for the 60W power usage in Dual mode or the 50 and something in BTC only mode, but you can go without it in Scrypt only mode. So we did just that, desoldered the fan from the ASIC and ran the device in fanless mode. And surprise, surprise the total power usage without the fan gets down to just about 5-6W overclocked to 850 MHz, but what about cooling without a fan?


Running for more than 2 hours already the ASIC in fanless mode mining Scrypt has shown that it can do just fine with passive cooling. The maximum temperature was about 36.6 degrees Celsius at the hottest point with an ambient temperature of about 25 degrees Celsius. Don’t get the wrong impression from the thermal images, these temperatures for passive cooling are more than adequate and essentially the cooling radiator is considered cool, meaning that in Scrypt only mining mode you can do just fine with passive cooling at lower ambient temperatures. If you have multiple units together you might want to have a single big fan with slow rpm just to move a bit of air around them you you can be safe even when the summer heat hits.

A word of warning though, if you remove the fan from the Gridseed 5-chip ASIC devices and for some reason you start a miner for Scrypt that does not stop the BTC mining part or you start the dual mining mode you will have trouble with cooling the device and this can lead to a damage of the ASIC caused by overheating of the chips – most likely the first to blow up would be the voltage regulators. So be careful that you run only in Scrypt mode if going fanless and to use miners that do activate only the Scrypt mining mode and disable the SHA-256 one.


Asic scrypt mining