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about top end z170 mainboards

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kaigen View Drop Down
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Joined: 13 Aug 2015
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    Posted: 13 Aug 2015 at 10:34pm
Specifically the Extreme 7+:

This is the PCI-E lane break out for the board:

- 4 x PCI Express 3.0 x16 Slots (PCIE2/PCIE4/PCIE6: single at x16 (PCIE2); dual at x8 (PCIE2) / x8 (PCIE4); triple at x8 (PCIE2) / x4 (PCIE4) / x4 (PCIE6). PCIE3: x4 mode)
- 1 x PCI Express 3.0 x1 Slot (PCIE5) (Flexible PCIe)
- 1 x PCI Express 2.0 x1 Slot (PCIE1)
- 1 x Half-size Mini-PCI Express Slot

I have read that the Intel 6700k has 16 pci-e lanes with 4 reserved for storage(source on tom'shardware) I want to sli gpu's then have an NVM-E storage device. sli requires that you have x8/x8 set aside for it to work. then another x4 are needed for the storage making 20, x16 gpu and 4 nvm-e. The question is do AsRock boards support this? I see on the MSI boars that they list it simply as x8/x8/x4 which is misleading as people will think they would be able to use three gpu in CF and get that bandwidth which is actually x8/x4/x4. 
Back on topic; the part that makes it unclear is here " PCIE3: x4 mode) " this is listed at the very end by itself, would this be the slot for x4 storage to be unaffected by sli gpu/ x16 single.

I have this same question posted here, it might help explain what I need if you take a look:

http://www.tomshardware.com/answers/id-2754331/asrock-z170-pcie-lanes.html
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