Problem getting the Two GTX770 graphics cards to sync in SLI with my OCZ Revodrive 3 fitted.

[T_M]

Asus Maximus VI formula, GTX 770 in slots 1 & 2 positions, Ocz Revodrive in slot 3 position.

The graphics cards sync at x8, fine in slots 1 & 2 without revodrive fitted, when the revodrive is fitted in slot 3, they will not sync

 

[krells]

You only have 16 PCIe lanes so you can't run SLI with the revodrive. SLI is only supported on 8x and up.

 

[T_M]

You only have 16 PCIe lanes so you can't run SLI with the revodrive. SLI is only supported on 8x and up.

 

[T_M]

16 PCIe lanes ?? please explain

 

[krells]

The 16 lanes are divided by the three slots of the motherboard. When only the top slot is used the you get full 16x speed. When the first and second are used they run at 8 and 8. When all three are used the bandwidth on the second slot is split and given to the 3rd so you only have 8x 4x 4x.

 

[T_M]

Thanks krells, it all makes sense. i think i need a new motherboard.