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Author Topic: Need help quick! Dual 7970s  (Read 473 times)
M3t
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April 02, 2013, 12:22:37 AM
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I have dual 7970s in crossfire.

http://i48.tinypic.com/2reicet.jpg

552.6M/515.9Mh/s

What do these numbers mean for GPU 0?
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MysteryMiner
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April 02, 2013, 12:30:34 AM
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They mean speed. If not satisfied try to test various settings in mining software and then overclock the cards. Watch for temperature and stability.

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M3t
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April 02, 2013, 12:51:32 AM
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Okay, which number is the correct one?

Is GPU 0 my first 7970, and GPU 1 is my second 7970?
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April 02, 2013, 01:03:11 AM
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What are you using for drivers (amd cat and APP)?

You should be able to get a bit more from those cards.

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April 02, 2013, 01:05:23 AM
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Okay, which number is the correct one?

Is GPU 0 my first 7970, and GPU 1 is my second 7970?
Probably Yes. You know, computers like to start counting from zero, so 0 is first card and 1 is second card. If You are confused about two speed indications for each card then know that one is current speed and another is average speed over time.

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mulletwang
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April 02, 2013, 01:28:27 AM
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i was able to get 650 Mhash from both of my cards clocked at 1100 Core clock, but i did have to run the fans at 70% 24\7 so if noise is an issue just keep your cards at 925 clock and accept the 1100mhash instead of 1300. or find a comfortable middle ground you are comfortable with.
M3t
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April 02, 2013, 01:45:37 AM
 #7

I am using these drivers:

http://support.amd.com/us/gpudownload/windows/Pages/radeonaiw_vista64.aspx

the latest BETA 13.3 ones.

My setup is also in crossfire, does this hinder my performance?
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April 02, 2013, 01:57:32 AM
 #8

http://i50.tinypic.com/wkfjgo.jpg

This is what I'm getting after I overclocked them and turned the fan up a bit.

But HELP!! Should I disable or enable crossfire?

Should I take the crossfire bridge off physically too?
ltcminer
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April 02, 2013, 02:02:34 AM
 #9

first number is your current performance,

second number is your average over the last xxx minutes, which I am not so sure. please educate us.
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