MSI X99A SLI PLUS Motherboard

MSI X99A SLI PLUS Motherboard
Key Features
  • ATX Form Factor
  • Intel LGA2011-3 Socket
  • Intel X99 Express Chipset
  • Supports Intel Core i7 Extreme Edition
The X99A SLI PLUS Motherboard from MSI is designed to fit in cases that support the ATX form factor. It supports Intel Core i7 Extreme Edition processors in the LGA1150-3 socket, as well as the Intel X99 Express chipset. It is optimized for multiple graphics cards and also supports Windows 8.1, 8, and 7 operating systems.
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MSI X99A Overview

  • 1Description
  • 2Optimized for Multiple Graphics Cards
  • 3USB 3.1
  • 4M.2
  • 5SATA Express
  • 6OC Engine
  • 7Intel Gigabit LAN
  • 8Military Class 4
  • 9Guard-Pro
  • 10USB Steel Power
  • 11OC Genie 4
  • 12Click BIOS 4
  • 13Software
  • 14Smart Utilities
  • 15Fast Boot

The X99A SLI PLUS Motherboard from MSI is designed to fit in cases that support the ATX form factor. It supports Intel Core i7 Extreme Edition processors in the LGA1150-3 socket, as well as the Intel X99 Express chipset. It is optimized for multiple graphics cards and also supports Windows 8.1, 8, and 7 operating systems.

The ATX form factor of the X99A has eight RAM slots that can support up to 128GB of non-ECC, unbuffered DDR4 RAM, or 16GB per slot. The following memory speeds are supported: 3333 (OC), 3110 (OC), 3000 (OC), 2750 (OC), 2666 (OC), 2600 (OC), 2400 (OC), 2200 (OC), and 2133 MHz. The X99A also has a total of 10 x SATA III 6 Gb/s ports (two reserved for the SATA Express port), 1 x SATA Express port, 1 x M.2 port, 2 x USB 3.1 ports, 10 x USB 3.0 ports, and 6 x USB 2.0 ports. To provide data redundancy, RAID 0, 1, 5, and 10 modes are supported. For PCIe expansion, there are four PCIe 3.0 x16 slots and two PCIe 2.0 x1 slots. The X99A has also been optimized for multiple graphics cards and has multi-GPU support for AMD 3-Way CrossFire technology and NVIDIA 3-Way SLI technology.

Network connectivity is achieved using Intel I218 Gigabit LAN which supports wired Gigabit Ethernet speeds. The integrated Realtek ALC892 audio codec supports 7.1 channel HD audio and S/PDIF out. The X99A has also been designed with Military Class 4 components, including Super Ferrite Chokes, Solid CAPs, circuit protection, ECO power, humidity protection, temperature protection, ESD protection, and EMI protection. There is also a software suite that includes Command Center, Live Update 6, an unlimited RAMdisk, and more. This motherboard is protected by a limited 3-year warranty.

Optimized for Multiple Graphics Cards

With a large number of PCI-Express 3.0 x16 slots for every MSI motherboard, you get to choose optimal placement for your graphics cards for better fitting and airflow up to Quad SLI/CF

USB 3.1

Faster than SATA III, USB 3.1 allows for speeds up to 10 Gb/s, doubling the speed compared to USB 3.0 and up to 20x faster than legacy USB 2.0

  • Up to 2x faster than USB 3.0
  • Up to 20x faster than USB 2.0
  • Up to 10 Gb/s data transfer bandwidth
  • Boost transfer rate between your PC and external storage devices
  • M.2

    M.2 is the successor to mSATA, offering a performance increase up to 10 Gb/s. M.2 is packed in a small form factor and is compatible with three different sizes to fit most storage solutions

    SATA Express

    SATA Express is a solution in high speed storage through PCI Express, helping to provide more bandwidth for the SSDs. Flexible solutions with an M.2 to SATA Express converter are also available

    OC Engine

    Have you run into unstable situations when pushing your CPU to the limit? This occurs because the internal clocks are linked through the 100 MHz BCLK strap. Thanks to an integrated Clock Generator, MSI motherboards support more flexible BCLK adjustments, from 100 / 125 / 167 MHz straps. Using these straps helps prevent system crashing while overclocking

    Intel Gigabit LAN

    This motherboard achieves network connectivity using an Intel I218 Gigabit Ethernet port. Optimized for multimedia and gaming use, it helps deliver a stable and fast network connection

    Military Class 4

    Military Class 4 helps provide high quality components. The Dark Choke and Solid CAP will help make sure that your PC runs more stable under extreme gaming conditions.

    Super Ferrite Chokes - Super Ferrite Chokes use a ferrite core that is super-permeable. This allows the chokes to run to a 35°C lower temperature, have a 30% higher current capacity, a 20% improvement in power efficiency, and better overclocking power stability

    Solid CAPs - With their aluminum core design and Japanese made quality, Solid CAPs are designed for high end motherboards. Not only do they provide lower Equivalent Series Resistance (ESR), but they also work for at least 10 years


    Circuit Protection - Carefully selected materials, multiple PCB layers, and shielding result in effective motherboard circuit protection

    ECO Power - The MSI ECO Center can physically but the power to unused chips to help save up to 29% power usage

    Humidity Protection - The 10% reduction in moisture absorption helps prevent "Conductive Anodic Filament." Untreated PCB's can have up to a 10x higher failure rate

    High Temperature Protection - All key components used in MSI motherboards have passed military testing, helping to ensure stable operations in harsh environments

    ESD Protection - Each and every I/O port is protected against the hazards of Electro Static Discharge

    EMI Protection - MSI motherboards comply with stringent American FCC regulations and help reduce the impact of Electromagnetic Interference

    USB Steel Power

    Are your USB Bitcoin ASICs drawing too much USB power resulting in losing Bitcoins? USB Steel Power offers a stable 5V to all USB ports via an extra PWM, optimizing all USB ports so that you'll never have to worry about any Bitcoin loss

    OC Genie 4

    With the one-second overclocking option OC Genie, we're giving you increased performance. Just hit the button and your PC gets another adrenalin shot straight away. Give your system a performance boost with ease

    Click BIOS 4

    MSI Click BIOS 4 is a UEFI BIOS with optimizations for Windows 8. It reacts faster, runs smoother, and has improved mouse support, and more


    Command Center
    MSI's Command Center software is a powerful tool to help push your motherboard to the max. With an intuitive touch-ready interface, Command Center allows users to tune settings to help increase system stability, maximize overclocking performance, and adjust cooling features

    Live Update 6
    MSI Live Update automatically downloads and installs drivers, BIOS, and software updates

    Unlimited RAMdisk
    MSI Command Center integrated an unlimited RAMdisk. With a RAMdisk, you can create a virtual drive from your system memory, helping to enable speeds up to 20x faster than an SSD. With a RAMdisk, you can speed up system performance, load complete game images, as well as speed up games, apps, and Internet browsers

    ECO Center
    ECO Center lets you disable unused chips and functions on your motherboard. By cutting off the power entirely, your motherboard will run up to 29% more efficiently

    Smart Utilities

    The MSI Smart Utilities application helps to easily setup, configure, and boost your system's performance and more through Intel Smart Response. Please note that this feature only works on platform and models that supports Intel Smart Response technology

    Fast Boot

    MSI Fast Boot helps to make your system boot quickly. MSI Fast Boot also features a GO2BIOS button. Simply click it to restart your PC and go straight to the system BIOS

    MSI X99A Specs

    CPUSupports Intel Core i7 Extreme Edition processors for the LGA2011-3 socket
    ChipsetIntel X99 Express Chipset
    Memory• Supports eight DDR4 2133 / 2200 (OC) / 2400 (OC) / 2600 (OC) / 2666 (OC) / 2750 (OC) / 3000 (OC) / 3110 (OC) and 3333 (OC) MHz DRAM
    - 128 GB max
    - Quad channel memory architecture
    - Supports non-ECC, unbuffered memory
    - Supports Intel Extreme Memory Profile (XMP)
    Slots• 4 x PCIe 3.0 x16 slots, supporting up to 3-way mode
    - 1-way mode: x16/x0/x0/x0
    - 2-way mode: x16/x16/x0/x0, x16/x8/x0/x0 (for 40-lane CPUs)
    - 3-way mode: x16/x16/x0/x8, x8/x8/x8/x0 (for 28-lane CPUs)
    • 2 x PCIe 2.0 x1 slots
    Multi-GPU Support• Supports 3-Way AMD CrossFire Technology
    • Supports 3-Way NVIDIA SLI Technology
    • Supports 8.1, 8, and 7
    Storage• Intel X99 Express Chipset
    - 10 x SATA 6 Gb/s ports (2 ports are reserved for the SATA Express port)
    - SATA 1~6 support RAID 0, 1, 5, and 10
    - SATA 7~10 ports only support IDE and AHCI modes
    - Supports Intel Smart Response Technology (Windows 8.1, 8, and 7)
    • 1 x SATA Express port
    • 1 x M.2 port
    - Supports M.2 SATA 6 Gb/s module or M.2 PCIe module up to 32 Gb/s
    - M.2 port supports 4.2 / 6 / 8 cm module
    - M.2 PCIe module does not support RAID 0, RAID 1, RAID 5, and RAID 10

    Please note that the SATA Express port or SATA 5~6 will not be available when the M.2 (Gen2 x2) module is installed in the M.2 port. Also, Intel RST does not support PCIe M.2 SSDs with Legacy ROM
    USB• Intel X99 Express Chipset
    - 6 x USB 3.0 ports (2 ports on the back panel, 4 ports available through the internal USB 3.0 connectors)
    - 6 x USB 2.0 ports (2 ports on the back panel, 4 ports available through the internal USB 2.0 connectors)

    • ASMedia ASM1142 Chipset
    - 2 x USB 3.1 ports on the back panel

    • VIA VL805
    - 4 x USB 3.0 ports on the back panel
    Audio• Realtek ALC892 Codec
    - 7.1-Channel High Definition Audio
    - Supports S/PDIF output
    LAN1 x Intel I218 Gigabit LAN
    Internal I/O Connectors- 1 x 24-pin ATX main power connector
    - 1 x 8-pin ATX 12 V power connector
    - 10 x SATA 6 Gb/s connectors
    - 1 x SATA Express connector
    - 1 x M.2 connector
    - 2 x USB 2.0 connectors (supports an additional 4 USB 2.0 ports)
    - 2 x USB 3.0 connectors (supports an additional 4 USB 3.0 ports)
    - 2 x 4-pin CPU fan connectors
    - 3 x 4-pin system fan connectors
    - 1 x Front panel audio connector
    - 2 x System panel connectors
    - 1 x TPM module connector
    - 1 x Chassis Intrusion connector
    - 1 x Clear CMOS jumper
    - 1 x Slow mode booting jumper
    - 1 x Power button
    - 1 x Reset button
    - 1 x OC Genie button
    - 1 x Multi-BIOS switch
    Back Panel I/O Ports- 1 x PS/2 keyboard/mouse combo port
    - 1 x Clear CMOS button
    - 2 x USB 2.0 ports
    - 6 x USB 3.0 ports
    - 2 x USB 3.1 ports
    - 1 x LAN (RJ-45) port
    - 1 x Optical S/PDIF OUT connector
    - 5 x OFC audio jacks
    BIOS• The motherboard BIOS provides "Plug & Play" BIOS which detects the peripheral devices and expansion cards of the board automatically
    • The motherboard provides a Desktop Management Interface (DMI) function which records your motherboard specifications.
    Mounting9 mounting holes
    Dimensions12.0 x 9.6" / 30.5 x 24.4 cm
    ATX form factor
    Packaging Info
    Package Weight3.7 lb
    Box Dimensions (LxWxH)13.6 x 10.6 x 2.6"
    See any errors on this page? Let us know



    What BIOS does it ship with? Will it support Broadwell E processors without an update?
    Asked by: mylordaustin
    you will need to flash your bios for full Broadwell E support
    Answered by: Jacob C.
    Date published: 2018-08-26
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