I was looking at getting a computer into which I will insert an Intel PCIe 400GB SSD drive (Intel 750 Series SSDPEDMW400G4R5). I noticed that the Lenovo P300 workstation comes with several slots:

  • 1 x PCIe x16
  • 1 x PCI x4 (x16 Mechanical)
  • 1 x PCIe x1
  • 1 x PCI

Intel PCIe 400GB SSD drive seems to use a PCIe Gen3 x4 PCI connection. Can I use any—or all—of these for the SSD drive?

  • possible duplicate of What is a PCI-Express Lane? Sep 10, 2015 at 2:44
  • Based on those specs, the SSD which is PCI x4 can only be used in that one PCI x4 slot. Sep 10, 2015 at 2:45
  • @JakeGould Why couldn't he use it in the x16 slot? Sep 10, 2015 at 3:03
  • 1
    @JakeGould Sure, just like in his x4 slot, since it's also x16 mechanical. Sep 10, 2015 at 3:05
  • 1
    @JakeGould It means the physical size and the available power. So you can put an x16 card in it, but it will only have an x4 interface. Sep 10, 2015 at 3:09

1 Answer 1


This SSD using PCIe x4 3.0. Based on the specifications on Lenovo Thinkstation website, Lenovo P300 motherboard supports PCIe 3.0, and have PCIe x4 line, so you can use it for this SSD.

Of course, you can use both PCIe x4 line (16 physical) and x16 line slots for SSD drives, together or separately. But, according to specification, your workstation has the PCIe x16 graphic card onboard. So, without of removing the graphic card, you can plug to your workstation only one PCIe SSD disk.

  • Why are you commenting on your own answer? Those details are valid. Just add them to your answer to make it a better answer. Sep 10, 2015 at 5:31
  • Yes. Please, delete your comments. Sep 10, 2015 at 6:32

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