Asus PRIME B840M-A WIFI Socket AM5/ Micro ATX Motherboard

PRIME B840M-A WIFI

The ASUS PRIME B840M-A WIFI is designed to take full advantage of AMD Ryzen™ 9000 processors. With advanced customization features, efficient cooling, and next-generation connectivity, this motherboard is ideal for both advanced AI applications and DIY PC enthusiasts looking to optimize performance.

AI Advisor

ASUS AI Advisor easily guides users to explore and understand the advanced functions and features of this motherboard.

Digital Power Design

8+2+1 power phase configuration with discrete MOSFETs ensures stable and efficient power delivery, suitable for high-performance processors.

It offers stability for both everyday tasks and demanding workloads.

Improved DDR5 Performance

AEMP (ASUS Enhanced Memory Profile): Automatically detects DDR5 modules without EXPO™ support and applies optimized profiles for better performance.

EXPO™ Support: Supports AMD extended overclocking profiles to achieve faster than stock DDR5 speeds.

Advanced Options in UEFI BIOS: Offers extensive settings for users looking to customize their memory performance.

Ultra-fast M.2 storage

Three M.2 slots:

Two PCIe 4.0 compliant for transfer speeds up to 64Gbps.

An additional PCIe 3.0, ideal for secondary storage units.

Allows for much faster boot and application loading times.

Refrigeration and Temperature Control

Advanced Thermal Design

Integrated heat sinks for key components.

Hybrid fan headers ensure efficient cooling and thermal stability under high load scenarios.

ASUS Fan Xpert 2+

Auto-Tuning: Automatic configuration of fan parameters with a single click.

Extreme Quiet Mode: Reduces fan speeds for quiet operation during light tasks.

Additional control available through the UEFI BIOS.

Liquid Cooling Compatibility

Compatible with ASUS AIO liquid cooling solutions, enabling customized aesthetic designs and robust thermal performance.

Connectivity and Expansion

WiFi 6E:

Uses the 6 GHz spectrum to deliver ultra-fast speeds, higher capacity, and better performance in crowded environments.

Realtek 2.5Gb Ethernet:

It offers fast data transfer, with less CPU overhead and smooth network performance.

PCIe 4.0 and USB Type-C:

Supports high-performance components and modern connections for advanced peripherals.

Specs

• CPU
• AMD Socket AM5 compatible with AMD Ryzen 9000, 8000 and 7000 Series Desktop Processors.
• Chipset
• AMD B840 Chipset.
• Memory
• 4 DIMM slots, max 192GB, DDR5.
• Support for up to 7600+MT/s (OC) using Ryzen 9000, 8000, and 7000 Series Processors.
• Support for ECC and Non-ECC, unbuffered memory.
• Dual channel memory architecture.
• AMD Extended Profiles for Overclocking (EXPO) and ASUS Enhanced Memory Profile (AEMP).
• Support for On-Die ECC on Non-ECC DDR5 memory.
• Graphics
• 2 DisplayPort ports (max. 8K@30Hz, DisplayPort 1.4).
• 1 HDMI™ port (max. 4K@60Hz, HDMI 2.1).
• Graphics specifications subject to CPU.
• Expansion Slots
• Ryzen 9000 and 7000 Series:
• 1 x PCIe 4.0 x16 (x16 mode).
• Ryzen 8000 Series:
• 1 x PCIe 4.0 x16 (x8/x4 mode).
• AMD B840 Chipset:
• 2 x PCIe 3.0 x16 (x1 mode).
• Storage
• Full support for 3 M.2 slots and 4 SATA 6Gb/s ports.
• RAID support depending on processor:
• Ryzen 9000: RAID 0/1/5/10.
• Ryzen 8000: RAID 0/1.
• Ryzen 7000: RAID 0/1/10.
• Grid
• Realtek 2.5Gb Ethernet with ASUS LANGuard.
• Wireless and Bluetooth Connectivity
• Wi-Fi 6E (2x2, 2.4/5/6GHz).
• Bluetooth® v5.3.
• USB ports
• Rear (7 in total):
• 2 x USB 10Gbps (Type-A).
• 1 x USB 5Gbps (Type-C®).
• 4 x USB 2.0 (Type-A).
• Frontals (7 in total):
• 1 x USB 5Gbps (Type-C®).
• 1 x USB 5Gbps header (2 additional ports).
• 2 x USB 2.0 headers (4 additional ports).
• Audio
• Realtek 7.1 Surround Sound audio codec.
• Support for 24-bit/192kHz and premium features like Audio Shielding and high-quality capacitors.
• Rear I/O Ports
• 2 x USB 10Gbps (Type-A).
• 1 x USB 5Gbps (Type-C®).
• 4 x USB 2.0 (Type-A).
• 2 x DisplayPort, 1 x HDMI.
• 1 x Ethernet 2.5Gb.
• 3 audio connectors.
• 1 BIOS FlashBack button.
• Internal Connectors
• Fans and Cooling:
• 1 x CPU Fan, 1 x CPU OPT Fan, 1 x AIO Pump, 3 x Chassis Fan headers.
• Feeding:
• 1 x 24-pin main connector, 1 x 8-pin CPU +12V connector.
• Storage:
• 3 x M.2 slots, 4 x SATA 6Gb/s ports.
• USB:
• 1 x USB 5Gbps (Type-C).
• 1 x USB 5Gbps header (2 additional ports).
• 2 x USB 2.0 headers (4 additional ports).
• Miscellaneous:
• 3 x Addressable Gen 2 headers, 1 x Clear CMOS header, 1 x COM Port header, 1 x Front Panel Audio header, 1 x S/PDIF Out header, 1 x SPI TPM header, 1 x Front Panel System header.
• Special Features
• ASUS 5X PROTECTION III (DIGI+ VRM, LANGuard, surge protection, etc.).
• ASUS EZ DIY (BIOS FlashBack™ button, BIOS FlashBack™ LED, Pre-mounted I/O).
• ASUS Aura Sync with Addressable Gen 2 headers.
• Included Software
• Armory Crate (Aura Sync, Fan Xpert 2+, etc.).
• Norton 360 Deluxe (60-day trial), Adobe Creative Cloud (free trial), WinRAR (40-day trial).
• BIOS
• 256 Mb Flash ROM, UEFI AMI BIOS.
• Operating System
• Windows 11, Windows 10 64-bit.
• Shape and Dimensions
• Micro-ATX format (24.4 cm x 24.4 cm).