Originally Posted by PatrickCrowely
16x, 16x, 8x & M.2 will be 2.0 speed. PCI-SSD will run x1.
My 950 pro only gets 1900mb/s & it's a 512GB with 3 way SLI. If I had a 5820K running 3 way SLI, it would get 3x4 speed. Seem that most boards are suited towards the 5820K. Not any difference between 16x & 8. Not where you'd tell.
Originally Posted by Chiobe
8x, 8x, 0x, 16x, 8x, 0x to m.2
That seems to be the setup for those 3 boards then.
Meaning I cant even run 3 way SLI + 1 PCI card and an m.2, at gen3.
Pretend the m2 slot is the 5th pcie slot. For anything to run or get allocated x8 using the 5th slot, the m2 has to give up lanes to accomplish this.
So you can fill up the board as long as you don't use the last slot. (if using m2) or the sata express or 1 or 2 ports the motherboard says they all share. If you're going regular sata drives and not using m2, then you're in the zone.
If there is only a 1 slot gap in between the graphics cards, the slot in between them will be allocated to the graphics cards. I have no idea why the hell it does this, but unless they fix that with a firmware or bios update, it is what it is. I have not tried to test this issue with different types of cards.
For instance the intel card that is sitting in there is showing up in the empty slot above it with x4 lanes assigned to it despite the graphics cards both being in x16 slots, so it's forcing a card to run at 8.
So yeah you can't go shoving a **** load of cards onto this board. If you want to use m2, you gotta just kiss that last pci slot goodbye. Also my machine used to take 90 seconds to POST when that 5th slot was filled with anything and I've heard a few other people with this problem and msi boards and nobody has figured out if that's the culprit or not, as soon as I took anything out of that spot the computer posts as it does now in the video I posted a page back.
Still not as fast as a skylake system unfortunately but it is what it is.