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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1564

post #15631 of 38704
Quote:
Originally Posted by s0up2up View Post

Any black PCB'd 7970 Ghz Editions?

Yup, the one I got. http://www.newegg.com/Product/Product.aspx?Item=N82E16814150632&Tpk=xfx%20double%20d%207970%20ghz
 
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post #15632 of 38704
Anyone knows whats the difference between those two?

http://www.hoh.de/hardware/grafikkarten/amdati/radeon-hd7000-serie/sapphire/628241/sapphire-radeon-hd-7850-oc-2gb-gddr5?c=62051

http://www.hoh.de/hardware/grafikkarten/amdati/radeon-hd7000-serie/sapphire/616741/sapphire-radeon-hd-7850-oc-2gb-gddr5?c=62051

The only difference i can see is that the first one might be the lite version with smaller box and no additional stuff (cables...)
post #15633 of 38704
http://www.overclock.net/t/1304345/crossfire-issues-and-progression-out-of-them/0_50

guess this might be a good place to leave this, thanks in advance for your feed back
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post #15634 of 38704
Quote:
Originally Posted by wermad View Post

I've runned trifire 6970 lightnings and 560 ti tf3 all aircooled on the EVGA Z77 FTW. I'm waiting on two more 7970s to run tri-fire. Since the MB allows you to run with an extra slot of breathing room for the top cards, it should cool vastly better than a triple sandwich. There's a few boards that can allow this arrangement (it maxes out at 8x pcie 3.0 on the EVGA Z77). I know the EVGA 4-way X58 can, the Asrock x79 Chamption, X79 Classified., and I think the BigBang x79. Some board do have the this middle pcie slot but their designated as 4x. Here's how I ran the 6970s and 560s:


If you don't plan to upgrade your mb, then expect some high temps in sandwich setup:


Source

...you daisy chain is interesting...

http://www.overclock.net/t/1304345/crossfire-issues-and-progression-out-of-them/0_50

perhaps you can help explain proper usage in that thread?
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post #15635 of 38704
Quote:
Originally Posted by Oubadah View Post

I want the reference 'ducted blower' cooler because of my case layout. I though these cards were supposed to be very quiet. Can anyone comemnt on noise levels vs the GTX 580?

If you keep the reference cards at stock settings, they are not TOO loud, but still loud. I did have a GTX580 at one point and it was much louder than a reference 7970. If you plan to OC your reference card with stock cooler and use a customer fan profile to keep it around 80c or lower, you will find it get loud under full load - especially if you have 2 cards (or more)
post #15636 of 38704
Also, considering the Heaven screens that people have been posting recently, thought I would put mine up as well:

Intel Rig running two 7970's, both clocked at 1100/1450


AMD Rig running a 7970 crossfired with a 7950, both clocked at 1050/1400


All my cards are reference cards.
post #15637 of 38704
Quote:
Originally Posted by TheMafia View Post

...you daisy chain is interesting...
http://www.overclock.net/t/1304345/crossfire-issues-and-progression-out-of-them/0_50
perhaps you can help explain proper usage in that thread?


Nice catch. Those crossfire bridges are setup wrong!
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post #15638 of 38704
Quote:
Originally Posted by TheMafia View Post

...you daisy chain is interesting...
http://www.overclock.net/t/1304345/crossfire-issues-and-progression-out-of-them/0_50
perhaps you can help explain proper usage in that thread?

Quote:
Originally Posted by tsm106 View Post

Nice catch. Those crossfire bridges are setup wrong!

That's sli!!!! tongue.gif


First pic crossfire 6970 x3. Second pic, Sli gtx 560 448 x3. That's how you setup three Nvidia cards using ribbon cables. I know, its a pita. I found out the hard way and took me a week to find that long 140mm MSI ribbon cable. Thanks to Msi-Alex for the hook up thumb.gif. Since I'm running an extra slot, I can't run the traditional triple sli hard-bridge. Also, its a little hard to notice but the cards in the second pic are slightly shorter and use two 6-pin (Lightnings 6970 used two 8-pins).

eidt: here's the thread that found the solution -


http://www.overclock.net/t/1293941/triple-sli-with-ribbon-sli-bridges-solved
post #15639 of 38704
Quote:
Originally Posted by wermad View Post

That's sli!!!! tongue.gif
First pic crossfire 6970 x3. Second pic, Sli gtx 560 448 x3. That's how you setup three Nvidia cards using ribbon cables. I know, its a pita. I found out the hard way and took me a week to find that long 140mm MSI ribbon cable. Thanks to Msi-Alex for the hook up thumb.gif. Since I'm running an extra slot, I can't run the traditional triple sli hard-bridge. Also, its a little hard to notice but the cards in the second pic are slightly shorter and use two 6-pin (Lightnings 6970 used two 8-pins).
eidt: here's the thread that found the solution.
http://www.overclock.net/t/1293941/triple-sli-with-ribbon-sli-bridges-solved


Doh, hehe. I realized after posting that it could have been sli too, oh well. thumb.gif
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post #15640 of 38704
Quote:
Originally Posted by vonalka View Post

Also, considering the Heaven screens that people have been posting recently, thought I would put mine up as well:
Intel Rig running two 7970's, both clocked at 1100/1450

AMD Rig running a 7970 crossfired with a 7950, both clocked at 1050/1400

All my cards are reference cards.

I don't think those 7970's are running correct on that Intel rig. Here are my results at the same overclock (1100/1450) on the GPU's with Heaven max out 1080p.
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