ASUS Prime B860M-A Motherboard

SKU: PRIME-B860M-A Brand:

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Description

ASUS PRIME series motherboards are expertly engineered to unleash the full potential of the latest Intel® Core Ultra Processors (Series 2). Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, the PRIME B860M-A motherboard provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features. It’s designed to be Advanced AI PC-ready, offering the power and connectivity needed for demanding AI applications.

AI Solutions

ASUS AI Solutions include AI Advisor as your technical expert with expertise in PC performance.

Robust power design

Stable power is crucial for maximizing the performance of Intel® Core Ultra Processors (Series 2). The PRIME B860M-A is designed to meet the needs of high-core-count CPUs. It features 7(80A) + 1(80A) + 1(80A) + 1(80A) power stages that integrate high-side and low-side MOSFETs and drivers into packages rated for up to 80 amperes each. This configuration ensures optimal power delivery, efficiency, stability and performance for both current and future Intel® processors.

AEMP III for Ultimate DDR5 Performance

ASUS Enhanced Memory Profile III (AEMP III) is an advanced firmware feature that empowers users to achieve unparalleled memory performance with cutting-edge CUDIMM memory. Through a two-phase comprehensive tuning process, AEMP III first optimizes the clock driver and then the memory frequency. This results in the best balance between performance and stability, even at cutting-edge speeds of DDR5-7600 or higher.

DIMM Fit / DIMM Fit Pro

DIMM Fit is an ASUS-exclusive BIOS feature that precisely analyzes individual memory modules to optimize performance and pinpoint potential issues. DIMM Fit Pro gives advanced PC builders more extensive customizability for memory tuning. It allows users to control up to twenty overclocking parameters, define testing ranges, and prioritize stability or performance, offering a more flexible and granular approach to memory optimization.

Two M.2 slots (up to 128Gbps)

The PRIME B860M-A offers a total of two M.2 slots, including one that supports data-transfer speeds of up to 128Gbps via PCIe 5.0, one that supports 64Gbps via PCIe 4.0. This enables quicker boot-up and app load times with OS or application drives.

Cooler by design

The PRIME B860M-A motherboard is engineered with multiple onboard heatsinks and an array of hybrid fan headers to help ensure your rig stays cool and stable under intense workloads.

Empowering connections

The PRIME B860M-A motherboard offers a versatile range of connectivity, including support for the latest version of PCI Express and an arsenal of USB ports which includes Type-C connections.

USB 20Gbps port

A batch of USB ports supports high-end rigs loaded with peripherals, including a rear USB Type-C® port with transmission speeds of up to 20Gbps.

PCIe 5.0 s​​​​lot

The latest processors introduce PCIe 5.0 support, doubling data transfer speeds compared to PCIe 4.0, enhancing signal integrity, and providing backward-compatible CEM connectors and support for previous PCIe versions.

Personalization

The PRIME B860M-A enhances the user experience across the board, from simplifying BIOS setting adjustments to offering customizable RGB lighting controls for a uniquely personal system aesthetic.

DIY friendly

The PRIME B860M-A motherboard features EZ PC DIY innovations that simplify and speed up the PC building process, making DIY easy and convenient.

Specifications

Weight 4 kg
Dimensions 18 × 18 × 10 cm
Processor

Support Intel® Core™ Ultra Processors (Series 2) , LGA1851*
Supports Intel® Turbo Boost Technology 2.0 and Intel® Turbo Boost Max Technology 3.0***
Refer to https://www.asus.com/support/download-center/ for CPU support list.**
Intel® Turbo Boost Max Technology 3.0 support depends on the CPU types.

Chipset

Intel B860

Memory

4 x DIMM slots, max. 256GB, DDR5
Supports up to 8666+MT/s (OC), Non-ECC,Un-buffered,Clocked Unbuffered DIMM (CUDIMM)*
Dual channel memory architecture
DIMM Fit
Supports Intel® Extreme Memory Profile (XMP) memory module
ASUS Enhanced Memory Profile III(AEMPIII)
*Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit https://www.asus.com/support/download-center/.
* Adjustments will be made based on the specifications of mass-produced memory products available on the market.
* Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.

Graphics

2 x DisplayPort**
1 x HDMI™ port***
1 x USB 20Gbps port (USB Type-C®) supports DisplayPort video output**
* Graphics specifications may vary between CPU types. Please refer to http://www.intel.com for any updates.
** Supports max. 4K@60Hz as specified in DisplayPort 1.4.
*** Supports 4K@60Hz as specified in HDMI 2.1.
**** Supports max. 4K@120Hz as specified in DisplayPort 1.4.
***** VGA resolution support depends on processors' or graphic cards' resolution.
******While installing the operating system, please ensure that your monitor is connected to the HDMI port on the back I/O panel or to a discrete graphics card.

Expansion Slots

Intel® Core™ Ultra Processors(series 2)
*1 x PCIe 5.0 x16 slot

Intel® B860 Chipset**
1 x PCIe 4.0 x16 slot (supports x4 mode)
1 x PCIe 4.0 x1 slot

– To ensure compatibility of the device installed, please refer to https://www.asus.com/support/download-center/ for the list of supported peripherals.

Storage

Total supports 2 x M.2 slots and 4 x SATA 6Gb/s ports*

Intel® Core™ Ultra Processors (Series 2) *
M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode)

Intel®B860 Chipset
M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 modes)
4 x SATA 6Gb/s ports

* Intel® Rapid Storage Technology supports SATA RAID 0/1/5/10.

LAN

1 x Intel® 2.5Gb Ethernet
ASUS LANGuard

USB

Rear USB (Total 8 ports)
1 x USB 20Gbps port (1 x USB Type-C® with DP Alt mode)
1 x USB 10Gbps port (1 x Type-A )
2 x USB 5Gbps ports (2 x Type-A)
4 x USB 2.0 ports (4 x Type-A)**

Front USB (Total 5 ports)
1 x USB 10Gbps connector (supports USB Type-C® )
1 x USB 5Gbps header supports 2 additional USB 5Gbps ports
1 x USB 2.0 header supports 2 additional USB 2.0 ports

*USB Type-C® power delivery output: max. 5V/3A
**USB_E1 port, USB_E2 port, USB_E3 port and USB_E4 port share the bandwidth.

Audio

Realtek 7.1 Surround Sound High Definition Audio CODEC*
– Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking
– Supports up to 24-Bit/192 kHz playback
Audio Features
– Audio Shielding
– Premium audio capacitors
– Dedicated audio PCB layers
** A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.

Back Panel Ports

1 x USB 20Gbps port (1 x USB Type-C® with DP Alt mode)
1 x USB 10Gbps port (1 x Type-A)
2 x USB 5Gbps ports (2 x Type-A)
4 x USB 2.0 ports (4 x Type-A )
2 x DisplayPort
1 x HDMI™ port
1 x Realtek 2.5Gb Ethernet port
3 x Audio jacks

Internal I/O Headers

Fan and Cooling Related
1 x 4-pin CPU Fan header
1 x 4-pin CPU OPT Fan header
1 x 4-pin AIO Pump header
3 x 4-pin Chassis Fan headers

Power Related
1 x 24-pin Main Power connector
1 x 8-pin +12V CPU Power connector

Storage Related
2 x M.2 slots (Key M)
4 x SATA 6Gb/s ports

USB
1 x USB 10Gbps connector (supports USB Type-C® )
1 x USB 5Gbps header supports 2 additional USB 5Gbps ports
1 x USB 2.0 header supports 2 additionalUSB 2.0 ports

Miscellaneous
3 x Addressable Gen 2 headers
1 x Aura RGB header
1 x Clear CMOS header
1 x Chassis Intrusion header
1 x COM Port header
1 x Front Panel Audio header (F_AUDIO)
1 x S/PDIF Out header
1 x SPI TPM header (14-1 pin)
1 x 10-1 pin Front System Panel header
1 x Thunderbolt™ (USB4®) header

Software Features

ASUS Exclusive Software
Armoury Crate
– Aura Creator
– Aura Sync
– Fan Xpert 2+
– Power Saving
ASUS DriverHub
ASUS CPU-Z
Norton 360 for Deluxe (60 Days Free Trial)
WinRAR (40 Days Free Trial)
UEFI BIOS
ASUS EZ DIY
– ASUS CrashFree BIOS 3
– ASUS EZ Flash
– ASUS UEFI BIOS EZ Mode
– ASUS MyHotkey

Special Features

ASUS Exclusive Software
Armoury Crate
– Aura Creator
– Aura Sync
– Fan Xpert 2+
– Power Saving
ASUS DriverHub
ASUS CPU-Z
Norton 360 for Deluxe (60 Days Free Trial)
WinRAR (40 Days Free Trial)
UEFI BIOS
ASUS EZ DIY
– ASUS CrashFree BIOS 3
– ASUS EZ Flash
– ASUS UEFI BIOS EZ Mode
– ASUS MyHotkey

ASUS 5X PROTECTION III
– DIGI+ VRM (- Digital power design with DrMOS)
– ESD Guards
– LANGuard
– Overvoltage protection
– SafeSlot
– Stainless-steel back I/O
ASUS Q-Design
– Q-Dashboard
– Q-DIMM
– Q-LED Core
– Q-Slot
ASUS Thermal Solution
– M.2 heatsink
– VRM heatsink design
ASUS EZ DIY
– ProCool
– Pre-mounted I/O shield
Aura Sync
– Aura RGB header
– Addressable Gen2 headers

BIOS

256 (128+128) Mb Flash ROM, UEFI AMI BIOS

Accessories

Cables
2 x SATA 6Gb/s cables

Miscellaneous
1 x M.2 rubber package
1 x Screw package for M.2 SSD

Documentation
1 x Quick start guide

Operating System

Windows 11 (22H2 & later)
Windows 10 64-bit (21H2 & later)

Manageability

WOL by PME, PXE

Form factor

Micro ATX

Warranty

3 Years

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