Will this mb support 2way CX with r7970 black editions

[robthatguyx]

http://www.newegg.com/Product/Product.aspx?Item=N82E16813131760 some are saying yes others no,so i figured id ask people on here who actually know what there talking about

 

[davcon]

Yes it supports X-fire x8x8.
Dual x8 Gen 3 PCI Express 3.0 x16 boards.
http://www.newegg.com/Product/Productcompare.aspx?Submit=ENE&N=100007627%20600093976%20600176035%20600041400%20600008722&IsNodeId=1&bop=And&ShowDeactivatedMark=False&CompareItemList=280%7C13%2D131%2D792%5E13%2D131%2D792%2DTS%2C13%2D131%2D791%5E13%2D131%2D791%2DTS

 

[robthatguyx]

7970s are 8x?

 

[dish_moose]

3.0 x16
-Bruce

 

[robthatguyx]

im so lost..so it can do 3 card then? or 2 or 1 because it says 4 (x16 or dual x8 or x8, x16, x16. does it mean theres 1 16x and 2 8x ? sorry for being such a noob guys just dont wanna blow 330 on this board and not have it do what i need it to

 

[davcon]

im so lost..so it can do 3 card then? or 2 or 1 because it says 4 (x16 or dual x8 or x8, x16, x16. does it mean theres 1 16x and 2 8x ? sorry for being such a noob guys just dont wanna blow 330 on this board and not have it do what i need it to

Yep that's right one card will work full speed x16
Two will be x8x8.
Personally i'd buy a Gen 3 board with PCIE 3.0 slots = the 7970 is a Gen 3 gpu.
If you want x16x16 dual mode you have to go SB-E X79.
Dual x8 vs. x16 dual isn't a huge difference.
Don't know for sure about this new Gen 3 stuff though.

 

[robthatguyx]

baa are there 1155 gen 3 boards?

 

[davcon]

baa are there 1155 gen 3 boards?

Yeah 2nd post this thread.
Pay attention son!

 

[noob2222]

Don't forget pci 3.0 is ivy bridge, not sandy

 

[robthatguyx]

http://www.newegg.com/Product/Product.aspx?Item=N82E16813157263
with intel i5 2500k
7970
work better now?

 

[davcon]

http://www.newegg.com/Product/Product.aspx?Item=N82E16813157263
with intel i5 2500k
7970
work better now?

There ya go !

 

[robthatguyx]

im just gonna quess that thats a yes it is better lol, now if i did do crossfire one in a 16x slot the other card in a 8 does that mean that the 8x card is only running half power?

 

[davcon]

im just gonna quess that thats a yes it is better lol, now if i did do crossfire one in a 16x slot the other card in a 8 does that mean that the 8x card is only running half power?

Dude both will run a x8.
The performance hit is negligible less the 4% difference from a x16 x16 set-up.
Either you buy one card to run at full speed or you go for two at Dual x8.
http://hardocp.com/article/2010/08/23/gtx_480_sli_pcie_bandwidth_perf_x16x16_vs_x8x8/3

 

[robthatguyx]

Best answer selected by robthatguyx.

 

[Mousemonkey]

This topic has been closed by Mousemonkey