LGA1851 ASUS PRIME B860M-A-CSM

Prime B860M-A CSM
ASUS PRIME series motherboards are expertly engineered to unlock the full potential of the latest Intel® Core™ Ultra (2 Series) processors. Featuring a robust power design, comprehensive cooling solutions, and intelligent tuning options, the PRIME B860M-A-CSM motherboard offers users and PC DIY builders a range of performance optimizations via intuitive software and firmware features. Designed as an Advanced AI PC-ready, it delivers the performance and connectivity required for demanding AI applications.

AI Advisor
The ASUS AI Advisor allows users to explore the functions and advanced features of ASUS motherboards in a simple and straightforward way.1

Robust power design
A stable power delivery is critical for maximizing the performance of Intel® Core™ Ultra (2 Series) processors. Designed to meet the demands of high-core-count CPUs, the PRIME B860M-A-CSM features 7 (80A) + 1 (80A) + 1 (80A) + 1 (80A) power stages that integrate high-side and low-side MOSFETs and drivers in packages capable of up to 80 amps each. This configuration ensures optimal power delivery, efficiency, stability, and performance for current and future Intel® processors.4

Six-layer board design
The multi-layer board design quickly dissipates heat around the voltage regulators to improve overall system stability and give the CPU more overclocking headroom.

Pro Cool connection
Proprietary connectors complement the motherboard“s connection to the power supply with 8-pin connectors that pass 12 volts directly to the processor. Each connector features solid pins that can handle more current than hollow pins.

Saving electricity
The Power Saver feature includes various settings to optimize power consumption and maximize energy savings. You can enable CPU power limiting, dim the Aura lighting, and set the fan profile to a power-saving mode. You can also switch the power plan built into Microsoft Windows.

Digi+ VRM control
The Digi+ Voltage Regulator Module (VRM) provides real-time control over voltage drop and automatically controls frequency and energy efficiency settings.

AEMP III for ultimate DDR5 performance
ASUS Enhanced Memory Profile III (AEMP III) is an advanced firmware feature that enables users to achieve unparalleled memory performance with cutting-edge CUDIMM memory. In a two-stage, comprehensive tuning process, AEMP III first optimizes the clock driver and then the memory frequency. The result is an optimal balance between performance and stability, even at peak 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 detect potential issues. This delivers the highest efficiency, compatibility, and system stability. Whether you“re an overclocker seeking ultimate performance, a competitor striving for the most responsive gameplay, or a content creator who values rock-solid stability, DIMM Fit offers optimizations tailored to your needs and hardware configuration.5

Two M.2 slots (up to 128Gbps)
The PRIME B860M-A-CSM offers a total of two M.2 slots, one supporting data transfer speeds of up to 128 Gbps via PCIe 5.0 and one supporting 64 Gbps via PCIe 4.0. This enables faster boot times and faster loading times for operating systems and applications.3

ASUS Fan Expert 2+
ASUS Fan Xpert 2+ software offers comprehensive control over the fans. Auto-Tuning mode intelligently configures all parameters with a single click. There“s also an Ultra Quiet mode that reduces fan speeds below the default minimum, keeping your system whisper-quiet during light tasks. The fans can also be controlled via the UEFI BIOS.5

Cooler compatibility
ASUS AIO coolers offer robust performance, high overclocking potential, eye-catching aesthetics, and customizable features for new motherboards, allowing you to build your dream gaming rig.5

PCIe 5.0 slot
The latest processors support PCIe 5.0, which doubles data transfer speeds compared to PCIe 4.0, improves signal integrity, and provides backward compatible CEM connectors and support for earlier PCIe versions.

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

UEFI BIOS
The UEFI interface offers user-friendly configuration options for PC novices and advanced features for veterans.

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

Armoury Crate
Customize Aura Sync RGB and control ASUS devices. Includes product registration and updates.

Aura Sync
Complete RGB lighting control for enthusiast systems, ensuring seamless synchronization with compatible hardware.

Addressable Gen2 RGB headers
Three addressable Gen2 headers detect the number of LEDs on compatible RGB devices and automatically adjust the lighting effects.

Pre-assembled connection panel
Our pre-installed I/O shield protects connectors, simplifies assembly, increases functionality, and improves aesthetics for PC DIY enthusiasts.

SafeSlot
PCIe 5.0 is twice as fast as PCIe 4.0. ASUS has adapted our SMT manufacturing for the faster SafeSlot, a reinforced metal enclosure that ensures secure card installation and faster data speeds.

Q-LED Core
The Q-LED Core display shows colored lights during the power-on self-test (POST) to help you troubleshoot problems.

ASUS Corporate Stable Model
ASUS Corporate Stable Model (CSM) is a commercial program designed to deliver stable and reliable motherboards. We offer up to 36 months of product lifecycle support and 6 months“ end-of-life notice, giving your organization ample time to prepare for product transitions. Every ASUS CSM motherboard purchase comes with ASUS Control Center Express—server-grade IT management software.

ASUS Control Center Express
ASUS Control Center Express is an integrated IT monitoring and management software designed to accelerate deployment, simplify IT operations, and improve productivity through comprehensive control and user-friendly features. Compatible with over 100 ASUS motherboards, ASUS Control Center Express provides a high-quality, TCO-optimized solution for your business needs.