Author Topic: Setting up 1x 7850 1x r9 270  (Read 2799 times)

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Offline blitz355Topic starter

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Setting up 1x 7850 1x r9 270
« on: January 12, 2014, 09:26:40 PM »
Hello everyone,


First off, I appreciate any help you may be able to give.
I have a few questions.


1. I have been testing each card separately and got the 7850 up and running fine with some settings from guiminer (im using cgminer though) and the hardware comparison wiki. However, for the r9 270 i couldn't find much data on settings to try. So I ended up not setting thread concurrency. Is there any negative consequences to not setting this? Doing this seemed to give me the best hashes.


these are the settings
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
"C:\Users\Sempron\Desktop\cgminer-3.7.2-windows\cgminer-3.7.2-windows\cgminer.exe" --scrypt --gpu-platform 0 -I 18 -g 1 -w 256 -o stratum+tcp://middlecoin.com:3333 -u 1AXLWoTpvLQonUpwMLATLcLFTLmjGXGs4A -p x
(I'm using middlecoin for testing purposes for now because it was easy to connect to quickly)

I get about ~430k/h with this setting 1060/1475

2. I want to get the two graphics cards running together at the same time. I attempted to just plug both in at the same time and run my two separate .bat files. It was sorta scary, my r9 270 started making a weird noise and producing 600+ k/hs which is not normal for these cards. I shut it down very quickly.

 I'm assuming part of my problem was not using a dummy plug on the second gpu. Which i will be making one soon.

 How do I configure cgminer to make each batch file specific to the proper gpu's? Is it ok to run two separate windows of cgminer, or is it better to configure one .bat file?I remember reading somewhere that you can use a command to ask cgminer to identify the connected gpu's, What command is this, and what do I use that information for?Thanks for your help, and happy mining!
« Last Edit: January 12, 2014, 09:30:28 PM by blitz355 »


 

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