GTX680 3 Way Help Please

[Crezzlin]

Hi I run an Msi BigBang 2 with Palit Gtx 680's in Sli, the cards are the 4Gb models and use up 3 lanes each so its every 4th lane that I can only use, does anyone know if the lanes that I would need to use for 3 cards would work in this formation, as I’m finding it hard to find info online.. Thanks

http://i712.photobucket.com/albums/ww122/crezzlin/MsiBigBang2.jpg

 

[Crezzlin]

Thanks for looking 
Ok from looking on the Msi site they give this info

Slots
• 4 PCI Express gen3 x16 slots
- PCI_E1 supports up to PCIE x16 speed
- PCI_E5 supports up to PCIE x16 speed when PCI_E3 is empty, or supports x8 speed when PCI_E3 is occupied
- PCI_E3 & PCI_E7 support up to PCIE x8 speed
• 3 PCI Express gen2 x16 slots
- PCI_E2, PCU_E4 & PCI_E6 support up to PCIE x1 speed

Now this is where I get lost, it says in BOLD! 3 PCI Express gen2 x16 slots, but then below it says up to PCIE x1? Also if I look at the PCIE Slots on the board the E2, E4 & E6 all look like they have pins over half the socket saying they are 16x slots :s

 

[Crezzlin]

Cheers

I will have a play tomo, my next problem if I do manage to get a 3rd card installed, will a Sli bridge fit as the gap is 90mm between 2 cards :s

If the Sli bride would be a problem I will need to water cool, do OcUK Stock any water blocks for the 4Gb cards... Thanks

 

[Crezzlin]

The manual also states it can run • 4 PCI Express gen3 x16 slots lol but like you said it only has 2 16x slots from the photo, interesting to see what performance difference I will get from different slots.

 

[Crezzlin]

Much appreciated im not the best when it comes to looking for watercooling parts.. I will post back tomo with any results..

 

[Crezzlin]

Hi update, trying to run slots 1-4-7 doesn't work, slot 4 goes to 1x soon as slot 1 is in use