PCI-E speeds, so confused, help!

[Guest]

I think I want to buy this motherboard because I need one to do SLI 680s...

http://www.newegg.com/Product/Product.aspx?Item=N82E16813130644

I have a Sandy Bridge i5 2500k cpu

This board will overclock my Sandy Bridge CPU just fine right?

Main question... if I'm running my Sandy Bridge CPU, on this board, with SLI 680s, what PCI-E version and speeds will they be running at sitting in the 2x PCI-E 3.0 slots? Will they be running PCI-E 2.0 x16/x16? 2.0 x8/x8? PCI-E 3.0 x8/x8?

 

[4745454b]

Yes on the ability to OC (I think...) and seeing as you have a SB CPU then you are limited to PCIe 2.0. I believe that board runs 16x/4x, unless you have something in those slots then it will be 16x/2x.

 

[constepatdyak]

pcie 3.0 8x is the same as pcie 2.0 16x

 

[4745454b]

How does that matter?

seeing as you have a SB CPU then you are limited to PCIe 2.0

 

[Guest]

so if i have an ivy bridge cpu on that board i can run pci-e 3.0 at x8/x8 in sli? if sandy bridge it will only run pci-e 2.0 at x16/x4 but won't even do pci-e 2.0 x8/x8?

 

[4745454b]

I didn't see from the short newegg description where it even suggested 8x/8x.

1 x PCIe 2.0 x16 slot - PCI_E7 supports up to PCIe 2.0 x4 speed (when PCI_E3 or PCI_E6 is empty) or PCIe 2.0 x2 speed (when PCI_E3 or PCI_E6 is installed).

This is from the PCIe 2.0 section. Who cares if it will do 8x/8x if you have PCIe 3.0 as you lack a 3.0 CPU/NB.

 

[schnitter]

As others have pointed out, it will run 16x PCI 2.0 if only ONE card is used. Running SLI wont even get you 8x 8x

I would get an ASUS MAXIMUS V GENE that has PCI 3.0 at 8x 8x

http://www.newegg.com/Product/Product.aspx?Item=N82E16813131830