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Gigabyte UD3R crossfire question

post #1 of 8
Thread Starter 
So I got myself another 5870 and wanna install it on this motherboard to crossfire. Which of the slots are best? AFAIK there are only 2 x16 ) no idea what 16 means ) and the other 2 are x8. What does that mean? On which slot should I install my 5870s and why?
Thanks a lot in advance! smile.gif
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post #2 of 8
Quote:
Originally Posted by Silvershot View Post

So I got myself another 5870 and wanna install it on this motherboard to crossfire. Which of the slots are best? AFAIK there are only 2 x16 ) no idea what 16 means ) and the other 2 are x8. What does that mean? On which slot should I install my 5870s and why?
Thanks a lot in advance! smile.gif

You can run them in anyway you want, you wont see the difference between 16x and 8x trust me. Run the cards in the 1st pci-e port and the last pic-e slot. IF you have a crossfire bridge that is long enough.. if not run them in the 2nd and last slot, the 2 16x slots might be to tight for the cards to breathe.
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post #3 of 8
Thread Starter 
Quote:
Originally Posted by freakb18c1 View Post

You can run them in anyway you want, you wont see the difference between 16x and 8x trust me. Run the cards in the 1st pci-e port and the last pic-e slot. IF you have a crossfire cable that is long enough.. if not run them in the 2nd and last slot, the 2 16x slots might be to tight for the cards to breathe.

Nice thanks. But which slots are 8x and which 18x and why does this number indicate?
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post #4 of 8
Quote:
Originally Posted by Silvershot View Post

Nice thanks. But which slots are 8x and which 18x and why does this number indicate?

1ST is 16x
2ND is 8X
3RD is 16x
4TH is 8x
http://www.overclock.net/t/1207345/16x-vs-8x-pci-e-bandwith/10


500
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post #5 of 8
Thread Starter 
Thanks guys smile.gif Thanks a lot. One last question before I commit:
The one us ASUS and the other sapphire. What is the procedure on running them in crossfire? Do I have to change some settings or what?
Edited by Silvershot - 5/3/12 at 10:12am
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Intel i7 950 @ 3.2 Ghz GA X58A UD3R REV.2 Asus Radeon HD5870 XMS3 3x2 gigs 
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My Rig
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post #6 of 8
Quote:
Originally Posted by Silvershot View Post

Thanks guys smile.gif Thanks a lot. One last question before I commit:
The one us ASUS and the other sapphire. What is the procedure on running them in crossfire? Do I have to change some settings or what?

the brand does not matter just go to your ATI catalyst control center and enable the crossfire.
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post #7 of 8
Thread Starter 
Hey guys. So I am having problems with my other sapphire 5870. I tried to run it alone without the asus in Xfire but all i got was a white screen with dots on vga and on HDMI nothing. monitor didnt recognise the graphic card. That was on boot btw so i can install any drivers and what not. I installed the drivers with my asus though, but with the sapphire it wont display anything. the seller on ebay claimed it was working fine, Whats the problem? I paid through bank transfer. Can I get my money back through ebay? What should I do ? frown.gif Looks like i was sold a dead 5870 and 45 days have passed so i cant solve the problem through ebay. only with the seller
Edited by Silvershot - 5/5/12 at 10:52am
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CPUMotherboardGraphicsRAM
Intel i7 950 @ 3.2 Ghz GA X58A UD3R REV.2 Asus Radeon HD5870 XMS3 3x2 gigs 
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post #8 of 8
Thread Starter 
Bump. Please if you have any idea what might be causing this or if the gpu is dead please reply.
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My Rig
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CPUMotherboardGraphicsRAM
Intel i7 950 @ 3.2 Ghz GA X58A UD3R REV.2 Asus Radeon HD5870 XMS3 3x2 gigs 
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1xSSD 60 gb & 1xHDD 1T Win 7 Ultimate 64 bit LG M2362D Razer Arctosa 
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