Windows 8 and 8.1 Forums


Motherboard Advice Needed

  1. #1


    Posts : 4
    windows 8

    Motherboard Advice Needed


    As it stands

    I only use 1 GPU maybe 2 if i plan to upgrade

    I have a FX 8350 watercooled

    what motherboard should i get to save money for when i upgrade

    990X or 990FX

      My System SpecsSystem Spec

  2. #2


    990FX gets my vote...more expensive but it allows you to SLI or Crossfire in X16 mode vs 990X in SLI/Crossfire in X8 mode, from what I've read.
      My System SpecsSystem Spec

  3. #3


    From our friends at Wikipedia:

    990FX [edit]

    • Codenamed RD990
    • Four physical PCIe 2.0 16 slots @ x8 electrical which can be combined to create two PCIe 2.0 16 slots @ x16 electrical, one PCIe 2.0 4 slot and two PCIe 2.0 1 slots, the chipset provides a total of 38 PCIe 2.0 lanes and 4 PCIe 2.0 for A-Link Express III solely in the Northbridge
    • HyperTransport 3.0 up to 2600 MHz and PCI Express 2.0
    • ATI CrossFireX supporting up to four graphics cards
    • 19.6 Watt TDP
    • Southbridge: SB950
    • Enthusiast discrete multi-graphics segment

    990X [edit]

    • Codenamed RD980
    • One physical PCIe 2.0 16 slot or two physical PCIe 2.0 16 slots @ x8, one PCIe 2.0 4 slot and two PCIe 2.0 1 slots, the chipset provides a total of 22 PCIe 2.0 lanes and 4 PCIe 2.0 for A-Link Express III solely in the Northbridge
    • HyperTransport 3.0 up to 2600 MHz and PCI Express 2.0
    • Support for up to two graphics cards
    • 14 Watt TDP
    • Southbridge: SB950


    Short version: the 990FX has 38 PCI-E lanes, while the 990X has 22. The 990FX would support the full X16 bandwidth for two graphics cards, while the 990X only has enough lanes to support two X8 connections. (That's probably not very significant in practice.)

    Interesting. AMD makes PCI-E 3 graphics cards, but no PCI-E 3 motherboards? (I've been out of touch with AMD since the Socket 939 days.)
      My System SpecsSystem Spec

  4. #4


    Covington, La
    Posts : 1,184
    Windows 7 HP 64bit, Windows 8.1 Pro w/Media Center 64BIT


    Check this Asus board. It has the new PCIe 3.0 and can run two slots at x16. And has the AM3+ CPU socket for your FX 8350.

    SABERTOOTH 990FX/GEN3 R2.0 - Motherboards - ASUS

    Jim
      My System SpecsSystem Spec

  5. #5


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


      My System SpecsSystem Spec

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