ASUS PRIME B860M-A-CSM Micro-ATX LGA 1851 Motherboard

ASUS PRIME B860M-A-CSM Micro-ATX LGA 1851 Motherboard

Feature

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-CSM 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.

ASUS Corporate Stable Model

ASUS Control Center Express

ASUS Control Center Express is an integrated IT monitoring and management software designed to deploy faster, simplify IT operations and improve productivity with comprehensive control and user-friendly functions. ASUS Control Center Express is compatible with over 100 ASUS motherboards to provide a high-quality, TCO-optimized solution for your business needs.

Optimize IT endpoint management

Designed to assist IT staff in monitoring and controlling devices within their corporate networks, and facilitate inventory checking in multiple locations remotely.

Automate IT maintenance

Allows IT staff to schedule automatic updates of the latest BIOS, software and utilities to specific or all devices at off-peak times, enhancing system stability and IT operational flexibility.

Securely manage all of endpoints

Securely manage endpoint configuration, portable storage access and PC software applications by enabling them to create grouping rules on individual devices.

Performance

AI Solutions

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

AI Advisor

ASUS AI Advisor allows users to explore the functionality and advanced features of ASUS motherboards in a simple and straightforward way.

Performance

Robust power design

Stable power is crucial for maximizing the performance of Intel^® Core^™ Ultra Processors (Series 2). The PRIME B860M-A-CSM 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.

Enhanced Memory & Storage Performance

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 is an ASUS-exclusive BIOS feature that precisely analyzes individual memory modules to optimize performance and pinpoint potential issues. This offers peak efficiency, compatibility, and system stability. Whether you are an overclocker seeking ultimate performance, a competitor pursuing the most responsive gameplay, or a content creator prioritizing rock-solid stability, DIMM Fit provides optimizations tailored to your needs and your hardware configuration.

Two M.2 slots (up to 128Gbps)

The PRIME B860M-A-CSM 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.

ASUS Fan Xpert 2+

ASUS Fan Xpert 2+ software provides comprehensive control over fans. An Auto-Tuning mode intelligently configures all parameters with a single click. There’s also an Extreme Quiet mode that reduces chassis fan speeds to below the default minimum to keep your system whisper-quiet when performing light tasks. Fans can also be controlled via the UEFI BIOS.

Cooler compatibility

ASUS AIO coolers offer robust performance, high overclocking potential, bold aesthetics and customizable functionality for new motherboards, empowering you to build your dream gaming rig.

Flexibility

Empowering connections

The PRIME B860M-A-CSM 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.

Customization

Personalization

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

UEFI BIOS

The UEFI interface delivers easy-to-use configuration options for PC beginners, and advanced features for veterans.

ASUS DriverHub

Simplify driver management with automatic detection, one-click installation and update for smooth, efficient system performance.

Specification	Details
Model	PRIME B860M-A-CSM
CPU Support	Intel® Core™ Ultra Processors (Series 2), LGA1851
Turbo Boost	Intel® Turbo Boost Technology 2.0 & Turbo Boost Max Technology 3.0
Chipset	Intel® B860 Chipset
Memory	4 x DIMM slots, max. 256GB DDR5, Supports up to 8666+ MT/s (OC), Non-ECC, Un-buffered DIMM, Dual Channel Memory Architecture, Intel® XMP & ASUS AEMPIII support
Graphics	2 x DisplayPort (4K@60Hz, DisplayPort 1.4), 1 x HDMI™ (4K@60Hz, HDMI 2.1), VGA resolution depends on CPU or discrete graphics card
Expansion Slots	– 1 x PCIe 5.0 x16 slot (Intel® Core™ Ultra Processors) – 1 x PCIe 4.0 x16 slot (x4 mode, Intel® B860 Chipset) – 1 x PCIe 4.0 x1 slot
Storage	2 x M.2 slots (1 PCIe 5.0 x4, 1 PCIe 4.0 x4), 4 x SATA 6Gb/s ports, Intel® Rapid Storage Technology (RAID 0/1/5/10)
Ethernet	1 x Realtek 2.5Gb Ethernet with ASUS LANGuard
USB (Rear)	1 x USB 20Gbps Type-C®, 1 x USB 10Gbps Type-A, 2 x USB 5Gbps Type-A, 4 x USB 2.0 Type-A
USB (Front)	1 x USB 10Gbps Type-C® connector, 1 x USB 5Gbps header (2 ports), 1 x USB 2.0 header (2 ports)
Audio	Realtek 7.1 Surround Sound High Definition Audio CODEC, Jack-detection, Multi-streaming, Front Panel Jack-retasking, Audio Shielding, Premium Capacitors, Dedicated PCB Layers
Back Panel I/O	1 x USB 20Gbps Type-C®, 1 x USB 10Gbps Type-A, 2 x USB 5Gbps Type-A, 4 x USB 2.0 Type-A, 2 x DisplayPort, 1 x HDMI™, 1 x Realtek 2.5Gb Ethernet Port, 3 x Audio Jacks
Internal I/O	1 x 24-pin Main Power Connector, 1 x 8-pin +12V CPU Power Connector, 2 x M.2 slots, 4 x SATA 6Gb/s ports, 1 x USB 10Gbps Type-C® connector, 1 x USB 5Gbps header (2 ports), 1 x USB 2.0 header (2 ports), 3 x Addressable Gen2 headers, 1 x Aura RGB header, 1 x Thunderbolt™ (USB4®) header
Cooling Features	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
Special Features	ASUS 5X PROTECTION III (DIGI+VRM, LANGuard, Overvoltage Protection, SafeSlot), ASUS Q-Design (Q-Dashboard, Q-DIMM, Q-LED Core, Q-Slot), ASUS Aura Sync with Addressable Gen2 headers, M.2 & VRM Heatsink, Pre-mounted I/O Shield
Software	Armoury Crate (Aura Sync, Aura Creator, Fan Xpert 2+, Power Saving), ASUS DriverHub, ASUS CPU-Z, Norton 360 Deluxe (60 Days Free Trial), WinRAR (40 Days Free Trial)
BIOS	256Mb Flash ROM, UEFI AMI BIOS, ASUS EZ DIY features (CrashFree BIOS 3, EZ Flash, UEFI BIOS EZ Mode)
Accessories	2 x SATA 6Gb/s cables, 1 x M.2 rubber package, 1 x M.2 SSD screw package, 1 x ACC Express Activation Key Card, 1 x Quick Start Guide
Operating System	Windows 11 (22H2 & later), Windows 10 64-bit (21H2 & later)
Form Factor	Micro-ATX (9.6″ x 9.6″ / 24.4cm x 24.4cm)