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[Official] Asus Maximus IV Extreme Owners Club - Page 193

post #1921 of 2086
I have question regarding crossfire setup. I ordered second 7950 (DCII TOP V2), is this configuration gonna give me 8x/8x Crossfire. It would be awesome for these cards, since there would be pretty good gap between them. Could also sandwich my sound card between them with this configuration.

Here is bad picture how i imagined it.

post #1922 of 2086
Quote:
Originally Posted by Tonza View Post

I have question regarding crossfire setup. I ordered second 7950 (DCII TOP V2), is this configuration gonna give me 8x/8x Crossfire. It would be awesome for these cards, since there would be pretty good gap between them. Could also sandwich my sound card between them with this configuration.

Here is bad picture how i imagined it.

Unfortunately it is the first x16 and the third x16 slot (not the fourth) that gives you the native x8,x8.
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post #1923 of 2086
So at what speed they would be running?, there is like 100 different opinions from this one in different forums.
post #1924 of 2086
Quote:
Originally Posted by Tonza View Post

So at what speed they would be running?, there is like 100 different opinions from this one in different forums.

I think it is generally accepted that in a two card configuration, native x8,x8 is the fastest. Running x16,x16 or x8,x16 with a two card solution adds on the additional overhead that the NF200 presents. When I personally tested it, I noticed around a 2-5fps difference at 2560x1440 in Battlefield 3 Ultra (no motion blur) with two 7970's. Depending on your cooling situation, this may be worth the hit in fps to keep your cards from running too hot.

Edit: Noticed I may not have addressed your question. If you go with the configuration in the picture, they will be running at x8,x16.
Edited by Fleat - 4/17/13 at 7:39am
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post #1925 of 2086
Ah ok, need to test out first when i get the second card how the temps are with native 8x/8x (some say they will run fine, some says top card will melt down biggrin.gif). Tho i have clean cable management and very good airflow in my case (also have mesh panel to replace the side window for extra GPU cooling). But anyway, running the second card in bottom slot would not be the end of the world, difference would so minimal considering games would run very fluently already.
post #1926 of 2086
Quote:
Originally Posted by Tonza View Post

Ah ok, need to test out first when i get the second card how the temps are with native 8x/8x (some say they will run fine, some says top card will melt down biggrin.gif). Tho i have clean cable management and very good airflow in my case (also have mesh panel to replace the side window for extra GPU cooling). But anyway, running the second card in bottom slot would not be the end of the world, difference would so minimal considering games would run very fluently already.

I had two 7970 Sapphire Dual X's running sandwiched for a short while before I watercooled them. They stayed within a reasonable temperature range at the expense of my hearing. The top card had to ramp up to 80%+ fan to stay lower than 75C under load.

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post #1927 of 2086
I have ran with 2 gtx 670 DirectCU II in the config you mentioned Tonza. I cant say what the difference is between the 2 mentioned, but because I like to get maximum airflow into these cards, I would sacrifice the 2-5fps for better temps. Also would you really notice that 2-5fps? (depending on monitor setup and game of course)
post #1928 of 2086
Ah well nothing too bad then, atleast i should not have overheating problems. Had reference 7970, it alone went to around 80-85c in heavy load biggrin.gif One last question, if i would do the native 8x/8x, does the bottom slot PCI-E 4x (the black one) would work also? I could put the sound card there. Man this board has to have the most complicated PCI-E lane scheme ever (thanks to P67) biggrin.gif.
Edited by Tonza - 4/17/13 at 8:40am
post #1929 of 2086
Thats the deal with E-ATX Z68/P67 boards and even some Ivy bridge boards, now if it was capable of doing quad sli/cross fire, things would be a lot simpler.
post #1930 of 2086
I'm looking to upgrade my ram to Kingston Beast Memory, however i wanted to get a single 8GB (8GB x 1) module due to limitations due to other hardware.

Does anybody know if 8GB modules are supported?
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