GridSeed GC3355 Scrypt ASIC Ubuntu GNU/Linux installation guide
Hi Scrypt miners,
I was lucky enough to get one of the first Scrypt ASICs produced by Chinese GridSeed during my stay in South Korea last month. Cheers to Dis Btopia of xbitcoinx.com!
I just hooked up one unit containing 5 chips to my Ubuntu box via USB port and here is what I did to get it running. Mind you, these instructions are for mining Scrypt, not SHA256 or dual mode, which the ASIC can also do. Most of the information I pieced together from this post in Chinese: http://cybtc.com/article-468-1.html
Download GridSeed's modified cpuminer and unpack zip file:
..or download via git:
Install automake:
You might need to install other compiling tools. I didn't need to, because I compiled other things before.
Compile:
Connect and power up ASIC.
Find correct USB device:
..or watch syslog while plugging in ASIC:
Start mining (replace "ttyUSB0" with device found above and add your pool data):
You should now see lots of output with yellow "LTC" lines. If you see red lines, that's bad.
Anyway, post here if you run into troubles.
I am not quite sure what the green and red LEDs are about. As far as I can tell there is no English documentation about that anywhere. I assume green (which is on as soon as power and USB are connected) indicates a certain ready state and red (which flashes sometimes) means hardware errors.
I am getting a lot of "Invalid nonce" errors in the cpuminer output along with red LED flashing. Probably because by mistake I got a 12V/0.5A power supply instead of 12V/5A and chips run low on power. So I can't tell you much about hash rates etc. right now. I'll get another power supply next week, so stay tuned.
I was lucky enough to get one of the first Scrypt ASICs produced by Chinese GridSeed during my stay in South Korea last month. Cheers to Dis Btopia of xbitcoinx.com!
I just hooked up one unit containing 5 chips to my Ubuntu box via USB port and here is what I did to get it running. Mind you, these instructions are for mining Scrypt, not SHA256 or dual mode, which the ASIC can also do. Most of the information I pieced together from this post in Chinese: http://cybtc.com/article-468-1.htmlDownload GridSeed's modified cpuminer and unpack zip file:
Code:
wget https://github.com/gridseed/cpuminer/archive/master.zip
unzip master.zip
cd cpuminer-master
unzip master.zip
cd cpuminer-master
..or download via git:
Code:
git clone git@github.com:gridseed/cpuminer.git
cd cpuminer
cd cpuminer
Install automake:
Code:
sudo apt-get install automake
You might need to install other compiling tools. I didn't need to, because I compiled other things before.
Compile:
Code:
./autogen.sh
./configure CFLAGS="-O3"
make
./configure CFLAGS="-O3"
make
Connect and power up ASIC.
Find correct USB device:
Code:
ls /dev/*USB*
..or watch syslog while plugging in ASIC:
Code:
tail -f /var/log/syslog
Start mining (replace "ttyUSB0" with device found above and add your pool data):
Code:
sudo ./minerd --freq=600 --gc3355=/dev/ttyUSB0 --url= --userpass=user:pass
You should now see lots of output with yellow "LTC" lines. If you see red lines, that's bad.
Anyway, post here if you run into troubles.I am not quite sure what the green and red LEDs are about. As far as I can tell there is no English documentation about that anywhere. I assume green (which is on as soon as power and USB are connected) indicates a certain ready state and red (which flashes sometimes) means hardware errors.
I am getting a lot of "Invalid nonce" errors in the cpuminer output along with red LED flashing. Probably because by mistake I got a 12V/0.5A power supply instead of 12V/5A and chips run low on power. So I can't tell you much about hash rates etc. right now. I'll get another power supply next week, so stay tuned.