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990FX Extreme9 M.2 support

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jgt1942 View Drop Down
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    Posted: 16 Mar 2016 at 1:13pm
I'm considering the Samsung 950 PRO -Series 512GB PCI SSD but I don't know if the  990FX Extreme9  has support for the M.2 four lanes. If not, can I use the Lycom DT-120 M.2 PCIe to PCIe 3.0 x4 Adapter and get full function from the SSD?
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jgt1942
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Post Options Post Options   Thanks (1) Thanks(1)   Quote parsec Quote  Post ReplyReply Direct Link To This Post Posted: 16 Mar 2016 at 2:13pm
Originally posted by jgt1942 jgt1942 wrote:

I'm considering the Samsung 950 PRO -Series 512GB PCI SSD but I don't know if the  990FX Extreme9  has support for the M.2 four lanes. If not, can I use the Lycom DT-120 M.2 PCIe to PCIe 3.0 x4 Adapter and get full function from the SSD?
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There are three main issues regarding the use of a Samsung 950 Pro NVMe SSD with the 990FX Extreme9 board:

  1. No M.2 slot on this board.
  2. This board only supports a PCIe 2.0 interface, not the PCIe 3.0 interface that the 950 Pro requires for its full speed. The Lycom DT-120 adapter is PCIe 3.0 compliant, but it does not supply PCIe 3.0 lanes to a mother board.  A 950 Pro can work with a PCIe 2.0 interface, but not at its full speed potential.
  3. This board does not have a UEFI/BIOS update to support NVMe. That limits the use of an NVMe SSD to a storage drive, not as the OS/Windows drive.

So the answer to your main question is no, you cannot use the Lycom adapter to get the full function from a Samsung 950 Pro.

The few 990FX boards that have an M.2 slot have a PCIe 2.0 x2 interface, rather than the PCIe 3.0 x4 interface required by the 950 Pro, or Intel 750. That interface would take a 950 Pro down to less than 1/2 its specified performance.

You would do somewhat better with a PCIe 2.0 x4 interface and the DT-120 card, but it would only be about 1/2 the specified performance.

Hopefully the next AMD processor generation (Zen) will have PCIe 3.0 support in the CPU and/or chipset, as FM2+ boards/processors have.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote jgt1942 Quote  Post ReplyReply Direct Link To This Post Posted: 16 Mar 2016 at 2:31pm
Much thanks for your excellent answer!
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Nightbird Quote  Post ReplyReply Direct Link To This Post Posted: 29 Apr 2016 at 5:26am
Hi,
Bios 1.80 has been released yesterday.
NVMe support has been added.
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