MSI Big Bang-XPower II SLI question

[erickdesrochers]

Hello. I have a MSI Big Bang-XPower II with two cards in SLI. The cards are cooled using AIO water cooling brackets which makes them take up three slots each instead of two. I would like to add a third card with the same cooling. The manual says that for 3-way sli I should use slots 1,3 and 5 or 7 as they are all PCIe 3. My processor doesn't do PCIe 3 so I leave it in PCIe 2 mode. My question is, could I set up the SLI configuration using slots 1, 4 and 7? Would it run at 16/8/8 in pcie 2? Or would the 4th slot not be usable for sli?
Thanks

 

[flobelix]

No, that is not possible. PCI_E4 is a gen2 slot limited to x4. SLI is disabled once a slot used is at less than 8 lanes. Follow the Multi GPU support table on 1-21 of your manual.