Monday, March 25, 2013

Win7 cgminer setup guide

Submitted by Graet on 


cgminer is Ozcoin's recommened miner.
The official thread for support and development of cgminer, the combined gpu and cpu miner written in c, cross platform for windows, linux and osx, based on the original code cpuminer.
Forum and download links here
This is a guide for windows - for those on linux or wanting to use cgminer on linux there is an excellent guide by kanoi included in the cgminer folder to setting up on a usb drive which can also be used to setup cgminer on hdd.
This guide assumes you have already created a worker and worker password. Please DO NOT use site user account password for miner passwords.
The guide
1: Download Windows binary from
2: Extract to preffered location (I dump it on C: but will work fine from other partitions or drvies)
3: Open notepad
copy and paste the following without the ""s
@echo on
ECHO "Example cgminer miner startup file (set your own user and password)"
cgminer.exe -o http://pool:port -u username.workername -p password
set your own username.worker and password
save the notepad as cgminer.bat in the previously extracted cgminer folder
4: Create shortcut to dekstop for cgminer.bat
5: Double click cgminer.bat, wait a moment while cgminer starts up
6: Look in cgminer console to see you are submitting shares
7: Check on site that workers are submitting shares, please be aware stats on the site can take up[ to 10minutes to update :)
*Note1: This is the most basic parameters needed to run cgminer
cgminer is very fully functioned and allows for overclocking, fan control and much much more from the .bat,command line or on the fly from within the program,
2 examples of my command lines
single card dedicated rig with failover set
cgminer.exe -o -u graet.g9 -p 1234 -o -u graet.g9 -p 1234 -o -u graet.g9 -p 1234 -I 9 --auto-fan --gpu-engine 900 --gpu-powertune 20 --donation 1
My desktop with 3 cards, I use the middle screen for tv and videos, so it has lower intensity set
cgminer.exe -o -u graet.20 -p p -I 8,6,9 --auto-fan --gpu-engine 890 --donation 1
I encourage users to check the README.txt in the cgminer folder and use the options that get them the best performance possible on their rigs :)
At step 4: a mate renamed the shortcut to "make money" made it easy to tell his wife how to restart cgminer if he was out and rig crashed, lol.
Hope this is a help :D

for my 6950 in a .bat file I use:

cgminer.exe -o http://pool:port -u user -p password  -I 8 --auto-fan --gpu-engine 810-910 --gpu-vddc 1.05 --gpu-memdiff -125 --gpu-powertune 5

this allows for failover to backup pool
and gives me ~370Mhash/card


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