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MSI Creator X299 Motherboard Review! | Level One Techs

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This is a companion discussion topic for the original entry at

Thanks for showing the diagram of data paths at 5:15. Curious about the switches for the PCIE slots, I checked the manual and found a little more info. With CPUs having 44 or 48 PCIe lanes:

  • The first two PCIe slots are either x16/x0 or x8/x8;
  • Two M.2 slots connect directly to the CPU;
  • With a 44-lane CPU, the last PCIe slot changes from x8 to x4 if a drive is present in the second M.2 slot.

That still seems like a pretty nice configuration and board. Thanks for a very interesting review.