ASUS PRIME X399-A Review & Specifications

ASUS PRIME X399-A AMD TR4 EATX

- Asus

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Powered by AMD Ryzen Thread ripper TR4 processors support for up to 128GB of DDR4 memory, dual NV Me M.2 drives, front side U.2 and front panel USB 3.1 Gen2 port
5-Way Optimization featuring Auto-Tuning and Fan pert 4 provides automatic overclocking profiles for maximum OC performance while AIO and water-cooling headers deliver dynamic system cooling
Patent-pending Safe Slot (3X) features an injection molding process that integrates metal framing for a stronger, firmly anchored Pie slot built for heavyweight GPUs
Unmatched Personalization with ASUS exclusive AURA Sync RGB lighting, two additional RGB headers and 3D-printing mounts to customize your build
Industry-leading 8-channel HD audio enhanced by ASUS exclusive Relate S1220A featuring Crystal Sound 3 and driven by Japanese capacitors for warm, immersive sound

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Specs Overview

Model PRIME X399-A
Socket TR4
Form factor EATX
Chipset AMD X399
Supported Memory DDR4:
2133Mhz 2400Mhz 2666Mhz 2800Mhz 3000Mhz 3200Mhz
SLI Support
CrossFire Support
RAID Support
Onboard USB 3.0
SATA 3 Gbps Ports 0
SATA 6 Gbps Ports 6
SATA Express Ports 0
M.2 Ports 2
mSATA Slots 0
RAM Slots 8
Maximum Supported RAM 128GB

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  • CPU

    AMD Socket TR4 for AMD Ryzen™ Threadripper™ Processors
    * Refer to www.asus.com for CPU support list

  • Chipset

    AMD X399

  • Memory

    AMD Ryzen™ Threadripper™ Processors
    8 x DIMM, Max. 128GB, DDR4 3200(O.C.)/3000(O.C.)/2800(O.C.)/2666/2400/2133 MHz Non-ECC, Un-buffered Memory
    ** Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).

  • Multi-GPU Support

    Supports NVIDIA® Quad-GPU SLI™ Technology
    Supports NVIDIA® 3-Way SLI™ Technology
    Supports NVIDIA® 2-Way SLI™ Technology
    Supports AMD Quad-GPU CrossFireX™ Technology
    Supports AMD 3-Way CrossFireX™ Technology
    Supports AMD 2-Way CrossFireX Technology

  • Expansion Slots

    AMD Ryzen™ Threadripper™ Processors
    4 x PCIe 3.0 x16 (single@x16, dual@x16/x16, triple@x16/x16/x8 mode)
    AMD X399 chipset
    1 x PCIe 2.0 x4 (max at x4 mode)
    1 x PCIe 2.0 x1

  • Storage

    AMD Ryzen™ Threadripper™ Processors :
    1 x M.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode)
    1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode)
    1 x U.2 port
    AMD X399 chipset :
    6 x SATA 6Gb/s port(s),
    Support Raid 0, 1, 10

  • LAN

    Intel® I211-AT
    ASUS Turbo LAN Utility
    ASUS LAN Guard

  • Audio

    Realtek® ALC S1220A 8-Channel High Definition Audio CODEC featuring Crystal Sound 3
    - Impedance sense for front and rear headphone outputs
    - Internal audio Amplifier to enhance the highest quality sound for headphone and speakers
    - Supports : Jack-detection, Multi-streaming, Front Panel Jack-retasking
    - High quality 120 dB (Line-out at rear) and 113 dB SNR recording input (Line-in)
    Audio Feature :
    - DTS Connect
    - DTS Headphone:X
    - Optical S/PDIF out port(s) at back panel
    - Audio Shielding: Ensures precision analog/digital separation and greatly reduced multi-lateral interference
    - Dedicated audio PCB layers: Separate layers for left and right channels to guard the quality of the sensitive audio signals
    - Premium Japanese-made audio capacitors: Provide warm, natural and immersive sound with exceptional clarity and fidelity
    - Unique de-pop circuit: Reduces start-up popping noise to audio outputs
    - EMI protection cover to prevent electrical noise to affect the amplifier quality
    Separate layer for left and right track, ensuring both sound deliver equal quality

  • USB Ports

    AMD Ryzen™ Threadripper™ Processors :
    8 x USB 3.1 Gen 1 port(s) (8 at back panel, , Type-A)
    AMD X399 chipset :
    1 x USB 3.1 Gen 2 port(s) (1 at mid-board)
    AMD X399 chipset :
    4 x USB 3.1 Gen 1 port(s) (4 at mid-board)
    AMD X399 chipset :
    4 x USB 2.0 port(s) (4 at mid-board)
    ASMedia® USB 3.1 Gen 2 controller :
    2 x USB 3.1 Gen 2 port(s) (Type-A + USB Type-CTM)

  • Special Features

    OC Design - ASUS PRO Clock Technology
    - Full BCLK range for extreme overclocking performance
    ASUS Dual Intelligent Processors 5-Way Optimization by Dual Intelligent Processors 5 :
    - 5-Way Optimization tuning key perfectly consolidates TPU, EPU, DIGI+ VRM, Fan Expert 4, and Turbo App
    AURA :
    - Aura RGB Strip Headers
    - Aura Lighting Effects Synchronization with compatible ASUS ROG devices
    ASUS Exclusive Features :
    - USB BIOS Flashback
    - AI Suite 3
    - Ai Charger
    - Onboard Button : Power
    - ASUS UEFI BIOS EZ Mode featuring friendly graphics user interface
    - Turbo LAN
    - Crystal Sound 3
    - PC Cleaner
    ASUS Quiet Thermal Solution :
    - Stylish Design Heat-pipe solution
    - Stylish Fanless Design with M.2 Heat-sink solution
    - ASUS Fan Xpert 4
    ASUS EZ DIY :
    - ASUS EZ Flash 3
    - ASUS USB BIOS Flashback
    - ASUS UEFI BIOS EZ Mode
    - Multi-language BIOS
    ASUS Q-Design :
    - ASUS Q-Shield
    - ASUS Q-Code
    - ASUS Q-LED (CPU, DRAM, VGA, Boot Device LED)
    - ASUS Q-Slot
    - ASUS Q-DIMM
    - ASUS Q-Connector
    Gaming Aesthetics :
    - 3D printing friendly
    - AURA-RGB Lighting
    M.2 and U.2 Onboard (The Latest Transfer Technology with up to 32Gb/s Data-transfer Speeds for M.2 and U.2)

  • Back I/O Ports

    1 x LAN (RJ45) port(s)
    2 x USB 3.1 Gen 2 (teal blue)Type-A + USB Type-CTM
    8 x USB 3.1 Gen 1 (blue)
    1 x Optical S/PDIF out
    5 x Audio jack(s)
    1 x USB BIOS Flashback Button(s)

  • Internal I/O Ports

    1 x 3-pin Cover fan (COV_FAN) connector
    1 x Q_Code
    1 x U.2 port
    2 x RGB Header(s)
    2 x USB 3.1 Gen 1 connector(s) support(s) additional 4 USB 3.1 Gen 1 port(s)
    2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s)
    1 x M.2 Socket 3 with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode)
    1 x M.2 Socket 3 with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode)
    6 x SATA 6Gb/s connector(s)
    1 x M.2_FAN connector
    1 x CPU Fan connector(s)
    1 x CPU OPT Fan connector(s)
    3 x Chassis Fan connector(s)
    1 x AIO_PUMP connector
    1 x W_PUMP+ connector
    1 x 24-pin EATX Power connector(s)
    1 x 8-pin ATX 12V Power connector(s)
    1 x 4-pin ATX 12V Power connector(s)
    1 x Front panel audio connector(s) (AAFP)
    1 x System panel(s)
    1 x 5-pin EXT_FAN(Extension Fan) connector
    1 x Thermal sensor connector(s)
    1 x Power-on button(s)
    1 x Clear CMOS button(s)
    1 x USB 3.1 Gen 2 front panel connector

  • Accessories

    User's manual
    ASUS Q-Shield
    1 x Vertical M.2 bracket set
    4 x SATA 6Gb/s cable(s)
    1 x M.2 Screw Package
    1 x Supporting DVD
    1 x SLI HB BRIDGE(2-WAY-M)
    1 x Q-Connector

  • BIOS

    128 Mb Flash ROM, UEFI AMI BIOS, PnP, WfM2.0, SM BIOS 3.0, ACPI 6.1, Multi-language BIOS, ASUS EZ Flash 3, CrashFree BIOS 3, F11 EZ Tuning Wizard, F6 Qfan Control, F3 My Favorites, Last Modified log, F12 PrintScreen and ASUS DRAM SPD (Serial Presence Detect) memory information

  • Manageability

    WfM 2.0, DMI 3.0, WOL by PME, PXE

  • Operating System

    Windows® 10 64-bit

  • Form Factor

    Extended ATX Form Factor
    12 inch x 10.6 inch ( 30.5 cm x 26.9 cm )

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