ASUS S2011-3 ATX X99-A II DDR4 Motherboard - Computer Alliance
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ASUS S2011-3 ATX X99-A II DDR4 Motherboard

Web ID: 18623

Intel Socket 2011-3, X99 Chipset, 8 x Quad Channel DDR4 sockets (up to 64GB), 40-Lane CPU: 3 x PCIe 3.0/2.0 x16, 28-Lane CPU: 3 x PCIe 3.0/2.0 x16 and 1 x PCIe 2.0 x16 (x4 mode) and 2 x PCIe 2.0 x1, Supports AMD 3-Way CrossFireX, NVIDIA 3-Way SLI, 8 x SATA 6Gb/s, RAID 0, 1, 5, 10, 1 x M.2 PCIe Socket, 1 x SATA Express, Intel I218V Gigabit LAN, 1 x USB 3.1 Type-A, 1 x USB 3.1 Type-C, 8 x USB 3.0 (4 via back panel, 4 via internal header), 8 x USB 2.0 (4 via back panel, 4 via internal header), 7.1 Channel Audio with Optical Out, ATX Form Factor
Manufacturer PN: X99-A II
GTIN: 889349399149
Warranty: 3 Year
Manufacturer Website

Unleash the true performance of new Intel Core i7 processor family for socket LGA 2011-v3 in future

ASUS X99 Series motherboards are engineered from the ground up to get the most from new Intel® Core™ i7 processor family for socket LGA 2011-v3 and extract every ounce of performance from Intel's latest architecture. ASUS delivers the BEST of motherboards for gamers, enthusiasts, content creation professionals and passionate DIYers.

Drive CPU and DDR4 performance beyond all expectations!
ASUS Pioneered OC Socket

Designed to break performance barriers, ASUS OC Socket utilizes extra pins to connect a proprietary circuit to contacts found on land grid array (LGA). Combined with our customized UEFI, this exclusive feature enables higher DDR4 memory frequencies, lower latencies and enhanced stability while overclocking, extending all the way to extreme overclocking conditions, such as liquid nitrogen (LN2). OC Socket is 100% compatible with all LGA 2011-v3 CPUs, ensuring the ideal combination of overclocking performance and compatibility.

Other X99 Sockets

CPU Core 0 Voltage 1.728v

Huge voltage drop on other X99 motherboard

OC Socket

CPU Core 0 Voltage 1.824v

Almost no voltage drop with OC Socket

Under 100% load with CPU voltage set to extreme 1.825v

Testing configuration: CPU: Intel Core i7-5960X | MB: X99-A II | DDR4: Corsair DDR4-2133*4 | GFX: GTX680 | OS: Windows 7 64-bit, Prime95

Better Protection from Overcurrent
The extra 4-pin power plug shares current with the standard 8-pin power connector to balance loads and provide ample margin to overclock Intel's latest CPUs to the limit.
Unique Cache Bus Voltage Adjustment

The cache bus links areas such as CPU cores, DDR4 memory controllers, system agent and the shared L3 cache — so it’s a critical interconnect for the whole CPU subsystem. A higher cache-bus frequency directly accelerates subsystem performance, so ASUS OC Socket exclusively provides an adjustable cache-bus voltage to reach higher cache bus frequencies.

3DMark Physics
CPU: Intel Core i7-5960X 4.8G| MB: X99-A II | DDR4: Corsair DDR4-2133*4 | GFX: GTX780 | OS: Windows7 64-bit

AIDA64 memory benchmark
CPU: Intel Core i7-5960X | MB: X99-A II | DDR4: Corsair DDR4-2133*4 | GFX: GTX780 | OS: Windows7 64-bit

Make your memory go faster

Drive your memory frequencies to 3333MHz and beyond! ASUS-exclusive T-Topology circuit design plus OC Socket provides a superb memory-overclocking capability to unleash the full power of DDR4 by minimizing coupling noise and signal reflection. With innovative equidistant memory channels, it delivers the most balanced control and powerful overclocking compatibility. ASUS works with almost every DDR4 memory vendor to ensure the best compatibility.

One click overclock and cooling, done!
5-way Optimization

One click takes care of all that complex tuning. Your PC is smart with ASUS 5-Way Optimization. It dynamically optimizes essential aspects of your system based on real-time use — so you get superb CPU performance, everyday energy savings, ultra-stable digital power, cool and quiet fans and now even networking and audio settings that are tailored for the apps that you are using. In short, 5-Way Optimization ensures that your PC is perfect for gaming, entertainment, productivity or just about anything else!

  • Games run swiftly and smoothly with high performance, prioritized bandwidth and vivid sound.
  • Fans stay whisper-quiet for everyday computing, and ensure extreme cooling efficiency when gaming.
  • Energy waste is reduced so you'll save money.
Testing configuration:
Intel LGA2011-3 i7-5960X 140W | X99-A II | CRUCIAL SSD 64G |ENERMAX EMR1350EWT 1350W | ASUS PB278Q 27” | MICRON MTA8ATF52164AZ-2G1A1 4GB*2 | GTX650Ti-DC2T-1GD5*1
  • CPU performance boost
  • All-round energy efficiency
  • Advanced fan controls
  • Precise Digital Power Control
  • Game faster, rank higher

Flexible cooling controls for air and liquid

The latest ASUS X99 motherboards feature the most advanced cooling capability to date, controllable from both Fan Xpert 4 and UEFI.


Water Pump Header

Full control of PWM or DC water pumps, perfect for both custom and self-contained cooling setups.

High-amp fan support

A dedicated fan header that can supply up to 3 Amps, for high-speed high-current fans.

Multiple temperature sources

Multiple temperature sources: Each header can be set to monitor and react up to 3 multiple thermal sensors.

4-pin PWM/DC fan support with Auto Detection

Every onboard header supports auto detection of PWM or DC fans.

Smart Protection

A dedicated integrated circuit that protects each fan header from both over-temperature and over-current.

Fan Ext Header

Next Page >
Media-acclaimed UEFI BIOS
The smoothest, slickest mouse-controlled graphical BIOS has been improved to make it even more appealing. Whether you're a PC novice or a seasoned overclocker, the EZ and Advanced Modes help you find your way, quickly and easily.
EZ Flash 3
Update the latest BIOS via the internet, and from within the BIOS.
Check up your storages devices' Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T) logs to gauge reliability, and even determine if they’re about to fail.
EZ Tuning Wizard — OC and RAID
Select your hardware and apply different scenarios to tune system performance, or streamline your RAID configuration for faster data retrieval and backups!
My Favorites
Quickly find tuning options and add preferred tools to the list.
EZ Mode
  • Intuitive Graphical Fan Control: Fine-tune individual fans simply by dragging a curve with the mouse.
  • EZ XMP: Improve your DRAM performance with a click.
  • SATA Information: View SATA port details for easy device recognition.
  • Fast Clock Adjustment: Use mouse controls to change the time and date.
Advanced Mode
  • GPU POST: Recommendation for multi-VGA configuration and detailed information for selected ASUS graphics cards .
  • Secure Erase: Restore your SSDs to factory-fresh condition.
  • Last Modified Log: Track last change and save preferred profiles onto a USB drive.
  • SATA Port Renaming: Rename SATA ports for easy identification.
  • Aura (LED Control) Customize your favorite RGB LED style direct from the BIOS.
Make it your own
Brighten up your build
AURA Lighting Control
A well-tuned enthusiast system deserves a matching aesthetic. ASUS Aura offers full RGB control with a variety of functional presets for both built-in RGB LEDs, as well as LED strips connected to the onboard 4-pin RGB headers, all of which can be synced with an ever-growing portfolio of Aura-capable ASUS hardware.
  • CPU
    Intel® Processors
    Intel® Core™ i7 X-Series Processors on LGA 2011-3 Socket
    Supports Intel® 14 nm CPU
    Supports Intel® Turbo Boost Technology
    * The Intel® Turbo Boost Technology 2.0 support depends on the CPU types.
  • Chipset
    Intel® X99
  • Memory
    8 x DIMM, Max. 128GB, DDR4 3333(O.C.)/3300(O.C.)/3200(O.C.)/3000(O.C.)/2800(O.C.)/2666(O.C.)/2400(O.C.)/2133 MHz Memory
    Quad Channel Memory Architecture
    Supports Intel® Extreme Memory Profile (XMP)
    ** Refer to for the Memory QVL (Qualified Vendors Lists).
    * Hyper DIMM support is subject to the physical characteristics of individual CPUs. 
  • Multi-GPU Support
    Supports NVIDIA® Quad-GPU SLI™ Technology
    Supports NVIDIA® 3-Way SLI™ Technology
    Supports AMD Quad-GPU CrossFireX™ Technology
    Supports AMD 3-Way CrossFireX™ Technology
  • Expansion Slots
    40-Lane CPU-
    3 x PCIe 3.0/2.0 x16 (x16 or x16/x16, x8/x16/x8) *1
    28-Lane CPU-
    3 x PCIe 3.0/2.0 x16 (x16, x16/x8, x8/x8/x8) *2
    1 x PCIe 2.0 x16 (x4 mode) *3
    2 x PCIe 2.0 x1 (x1 mode) *3
  • Storage
    New Intel® Core™ i7 X-Series Processors :
    1 x M.2 x4 Socket 3, with M Key, type 2242/2260/2280/22110 storage devices support (Support PCIE SSD only)*4
    1 x U.2 port, support PCIe 3.0 x4 NVM Express storage*4
    Intel® X99 chipset :
    1 x SATA Express port, Compatible with 2 x SATA 6.0 Gb/s ports
    8 x SATA 6Gb/s port(s)*5,
    Support Raid 0, 1, 5, 10
    Supports Intel® Smart Response Technology, Intel® Rapid Recovery Technology*6
  • LAN
    Intel® I218V, 1 x Gigabit LAN Controller(s)
  • Audio
    Realtek® ALC1150 8-Channel High Definition Audio CODEC featuring Crystal Sound 3
    - Supports : Jack-detection, Multi-streaming, Front Panel Jack-retasking
    - High quality 112 dB SNR stereo playback output (Line-out at rear) and 104 dB SNR stereo playback input (Line-in)
    - High-fidelity audio OP AMP(s)
    Audio Feature :
    - DTS Connect
    - DTS Studio Sound
    - Optical S/PDIF out port(s) at back panel
    - BD Audio Layer Content Protection
    - 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
    - Audio amplifier: Provides the highest-quality sound for headphone and speakers
    - 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
    - Top notch audio sensation delivers according to the audio configuration
    - EMI protection cover to prevent electrical noise to affect the amplifier quality
    - Power pre-regulator: Reduces power input noise to ensure consistent performance
  • USB Ports
    Intel® X99 chipset :
    5 x USB 3.0/2.0 port(s) (1 at back panel, blue, 4 at mid-board)
    Intel® X99 chipset :
    8 x USB 2.0/1.1 port(s) (4 at back panel, blue, 4 at mid-board)
    ASMedia® USB 3.1 controller :
    2 x USB 3.1/3.0/2.0 port(s) ( at back panel, teal blue, Type-A + Type-C)
    ASMedia® USB 3.0 controller :
    3 x USB 3.0/2.0 port(s) ()
  • Special Features
    5-Way Optimization by Dual Intelligent Processors 5
    - 5-Way Optimization tuning key perfectly consolidates TPU, EPU, DIGI+ VRM, Fan Xpert 4, and Turbo Core App
    ASUS 5X Protection II :
    - ASUS LANGuard - 2.5X higher surge tolerance
    - ASUS Overvoltage Protection - World-class circuit-protecting power design
    - ASUS DIGI+ VRM - 8 Phase digital power design
    - ASUS DRAM Overcurrent Protection - Prevents damage from short circuits
    - ASUS Stainless-Steel Back I/O - 3X corrosion-resistance for greater durability
    ASUS TPU :
    - Auto Tuning
    - GPU Boost
    ASUS EPU :
    - EPU
    ASUS Digital Power Design :
    - Industry leading Digital 8 Phase Power Design
    - Industry leading Digital 4 Phase DRAM Power Design
    - CPU Power Utility
    - DRAM Power Utility
    ASUS Exclusive Features :
    - Remote GO!
    - USB BIOS Flashback
    - MemOK!
    - AI Suite 3
    - Ai Charger+
    - USB Charger+
    - M.2 & SATA Express
    - Anti-Surge
    - Onboard Button : Power/Reset
    - ASUS UEFI BIOS EZ Mode featuring friendly graphics user interface
    - USB 3.1 Boost
    - Turbo LAN
    - Crystal Sound 3
    - EZ XMP ASUS Exclusive Features
    - Mobo Connect
    - PC Cleaner
    Remote Entertainment
    - Media Streamer
    - HyStream
    ASUS Quiet Thermal Solution :
    - ASUS Fan Xpert 4
    - Precision Tweaker 2
    - ASUS O.C. Tuner
    - ASUS O.C. Profile
    - ASUS CrashFree BIOS 3
    - ASUS EZ Flash 3
    - ASUS USB BIOS Flashback
    - Push Notice
    ASUS Q-Design :
    - ASUS Q-Shield
    - ASUS Q-Code
    - ASUS Q-LED (CPU, DRAM, VGA, Boot Device LED)
    - ASUS Q-Slot
    - ASUS Q-Connector
    Special Memory O.C. Design
    AURA: RGB Lighting Control
    Special Memory O.C. Design
    Turbo App
  • Operating System Support
    Windows® 10 , 64bit
    Windows® 8.1 86x64
    Windows® 8 86x64
    Windows® 7 86x64
  • Back I/O Ports
    1 x PS/2 keyboard/mouse combo port(s)
    1 x LAN (RJ45) port(s)
    2 x USB 3.1 ()Type-A + Type-C
    4 x USB 3.0
    4 x USB 2.0
    1 x Optical S/PDIF out
    5 x Audio jack(s)
  • Internal I/O Ports
    1 x U.2 port
    1 x AAFP connector
    1 x RGB Header(s)
    2 x USB 3.0 connector(s) support(s) additional 4 USB 3.0 port(s)
    2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s)
    1 x SATA Express connector: , Compatible with 2 x SATA 6.0 Gb/s ports
    1 x M.2 Socket 3 with M Key design, type 2242/2260/2280/22110 storage devices support (Support PCIE SSD only)
    8 x SATA 6Gb/s connector(s)
    1 x CPU Fan connector(s) (1 x 4 -pin)
    1 x CPU OPT Fan connector(s) (1 x 4 -pin)
    2 x Chassis Fan connector(s) (2 x 4 -pin)
    1 x S/PDIF out header(s)
    1 x Thunderbolt header(s)
    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 EZ XMP switch
    1 x 5-pin EXT_FAN(Extension Fan) connector
    1 x DRCT header(s)
    1 x MemOK! button(s)
    1 x Thermal sensor connector(s)
    1 x CPU OV
    1 x Power-on button(s)
    1 x Reset button(s)
    1 x Clear CMOS jumper(s)
    1 x Water Pump header (4-pin)
    1 x 14-1 pin TPM connector
    1 x COM port header
  • Accessories
    User's manual
    ASUS Q-Shield
    4 x SATA 6Gb/s cable(s)
    1 x M.2 Screw Package
    1 x CPU installation tool
    1 x Supporting DVD
    1 x SLI bridge(s)
    1 x Q-connector(s) (1 in 1)
    1 x Extension Cable for RGB strips (80 cm)
  • Form Factor
    ATX Form Factor
    12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )
  • Note
    1* PCIe x16_1 and PCIe x16_4 slots share the same bandwidth. PCIe x16_4 slot support up to x8 mode.
    2* When using a 28-lane CPU, the PCIe x16_3 slot support up to x8 mode.
    3* The PCIe x16_2 shares bandwidth with USB 3.1 and PCIe x1_2 slot. By default, the PCIe x16_2 slot automatically runs at x1 mode.
    4* M.2 shares bandwidth with U.2, only one device can be activated at a time.
    5* Due to chipset behavior, The SATA6G_78, SATA6G_910 ports (black) do not support IRST including RAID configuration.
    6* These functions will work depending on the CPU installed.