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HELP HELP HELP ! PLEASE READ!

Last response: in Graphics & Displays
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January 4, 2013 4:40:38 PM

Guys ok, The EVGA GTX 660, 28nm, Says this next to it ---> PCIe 3.0 (x16) <---- Will my gigabyte ga z77x up5th support two of these at x16 speed...


MY MOBO -------->http://www.gigabyte.com/products/product-page.aspx?pid=...

More about : help read

January 4, 2013 4:42:46 PM

As far as I am aware, no motherboard can do SLI or Crossfire with BOTH cards running at x16. The highest is 16x for slot 1 and then 8x for slot two.

1 x PCI Express x16 slot, running at x16 (PCIEX16)
* For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot.

1 x PCI Express x16 slot, running at x8 (PCIEX8)
* The PCIEX8 slot shares bandwidth with the PCIEX16 slot. When the PCIEX8 slot is populated, the PCIEX16 slot will operate at up to x8 mode.
January 4, 2013 4:45:30 PM

I LOVE YU MAN ! No homo , thought I brought the Erin motherboard lol :D 
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January 4, 2013 4:53:51 PM

Sorry I dot understand the end part ? About the x16
a c 109 U Graphics card
January 4, 2013 4:59:18 PM

Running at 16x dual mode vs 8x dual mode, there's no performance loss with that card in dual mode(SLI).
January 4, 2013 5:05:25 PM

norrisc86 said:
As far as I am aware, no motherboard can do SLI or Crossfire with BOTH cards running at x16. The highest is 16x for slot 1 and then 8x for slot two.

1 x PCI Express x16 slot, running at x16 (PCIEX16)
* For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot.

1 x PCI Express x16 slot, running at x8 (PCIEX8)
* The PCIEX8 slot shares bandwidth with the PCIEX16 slot. When the PCIEX8 slot is populated, the PCIEX16 slot will operate at up to x8 mode.


There's a lot of boards that can do 2 cards at x16/x16, there aren't a lot of boards that can do 3 or 4 cards at x16/x16/x16/x16, but for 2 cards there's a lot.

Maximus V Extreme
Rampage IV Extreme
G1.Sniper
ASRock Extreme9
X79 Champion

There's even one that can do 4 at x16, the ASRock X79 Extreme11.
a b U Graphics card
January 4, 2013 5:25:03 PM

your mainboard will support 2 way sli in x8 mode...but you don't need to worry atall...you will face no bottleneck from that part.

only those mainboard fitted with a Marvell chip or something around those lines that allows active switching of pci e lanes can achieve x16 bandwidth on both cards

asus rog mainboards have those chips
January 4, 2013 5:29:24 PM

Oh ok ;)  guys guess what ... I haven't got that mobo yet , in offering tonight ..? Is the gigabyte up5 th , the best z77 mobo ? I don't like the others... Give me you're adive ...? You guys are just much more cleaver at this
a b U Graphics card
January 4, 2013 6:41:09 PM

oh yours is a great mainboard...don't be scared.
dual thunderbolt,great audio,wireless connectivity etc.

a b U Graphics card
January 4, 2013 8:24:38 PM

edit: sorry about that Marvell chip thing...i ment to say the PLX chip.
January 4, 2013 8:37:46 PM

Thanks ill buy ASAP !!
January 4, 2013 8:38:13 PM

And what does the to mean on like the gtx 690 ? Is it good or bad ?
a b U Graphics card
January 4, 2013 10:18:41 PM

what does the which "to"?
!