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Author Topic: Crossfire Mining?  (Read 1804 times)
sterob
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October 31, 2013, 02:02:15 AM
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I am a softcore part time miner, so I am  thinking to buy another GPU for both game and mining.
Is it possible to crossfire them to play offline game, then un-crossfire without having to unplug the xfire bridge and restart. So i can use 1 card for playing MMORPG while the other can keep mining?  I remember people mention that for crossfire both card will run on the same clock speed. After  un-crossfire can i run them on different clock/mem speed and voltage?
 

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October 31, 2013, 01:28:29 PM
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You'll get more hashes/second if they run un-crossfired.

I think there's an option in Catalyst Control Center somewhere to disable Xfire profiles for certain things, try disabling it for your mining program.
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November 01, 2013, 02:08:31 AM
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Lets find out. Smiley

Trying that now with my 7870s.

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November 01, 2013, 02:11:32 AM
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I agree. Crossfire just reduces the hashes per second.
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November 01, 2013, 02:47:19 AM
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After a quick AVP benchmark run, I disabled crossfire and had no issues running scrypt on both gpus, without having to reboot. Then I stopped mining with GPU0 and ran AVP while GPU1 continued to mine.

That last part isn't new to me as I have flipped between the gamer/htpc/miner mode many times before. You'll be ok as long as GPU0/ the main display, is run at stock speeds.

I'm using the 13.9 drivers with the 13.5 CAP1 app profiles, btw. Smiley

gl xD




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November 01, 2013, 04:45:02 AM
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After a quick AVP benchmark run, I disabled crossfire and had no issues running scrypt on both gpus, without having to reboot. Then I stopped mining with GPU0 and ran AVP while GPU1 continued to mine.

That last part isn't new to me as I have flipped between the gamer/htpc/miner mode many times before. You'll be ok as long as GPU0/ the main display, is run at stock speeds.

I'm using the 13.9 drivers with the 13.5 CAP1 app profiles, btw. Smiley

gl xD





Yes this is typically what I do when editing hi res raw images at the same time mining. I set the GPU running the monitor to not be included in the miner. It also gives me a cooler temperature running only 1 GPU in my dual GPU card.
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November 01, 2013, 04:56:06 AM
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I am a softcore part time miner, so I am  thinking to buy another GPU for both game and mining.
Is it possible to crossfire them to play offline game, then un-crossfire without having to unplug the xfire bridge and restart. So i can use 1 card for playing MMORPG while the other can keep mining?  I remember people mention that for crossfire both card will run on the same clock speed. After  un-crossfire can i run them on different clock/mem speed and voltage?
 

You can always de-active the first GPU just for gaming and the real continue to do the mining work....

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