ASUS PRIME B840M-R AMD B840 Socket AM5 mATX Motherboard

ASUS PRIME B840M-R | AMD B840 micro ATX Expert Analysis

The ASUS PRIME B840M-R AMD B840 Socket AM5 micro ATX motherboard is engineered for modern AMD Ryzen builds. It targets system builders who need a solid foundation for Ryzen 9000, 8000, or 7000 series processors. This board offers a practical mix of DDR5 support and essential connectivity for a compact PC.

Core Specifications Overview

Optimised for AMD Ryzen 9000 Series

This motherboard supports the latest AMD Ryzen processors. The Socket AM5 design accommodates Ryzen 9000, 8000, and 7000 series chips. You can install high-performance CPUs without compromise. The board’s power delivery is tuned for stability. Because it uses the AMD B840 chipset, it provides a reliable platform for daily computing and creative work. It is also Advanced AI PC-ready.

High-Speed DDR5 Memory Support

The board features two DIMM slots for DDR5-SDRAM memory. It supports dual-channel operation for improved bandwidth. You can install up to 128 GB of RAM. Furthermore, it supports memory overclocking up to 7600 MHz. This allows for responsive multitasking and smoother application performance. The system uses unbuffered, non-ECC memory, which is standard for consumer builds.

Flexible Storage and RAID Options

You get two M.2 slots and four SATA III connectors. This allows for a mix of fast NVMe SSDs and high-capacity HDDs. The board supports RAID levels 0, 1, 5, and 10. This provides options for performance or data redundancy. The first M.2 slot accepts 2280-size key modules. All storage interfaces use the standard M.2 and SATA III protocols.

Comprehensive Connectivity and Ports

The rear I/O panel includes four USB 3.2 Gen 1 Type-A ports. There are also two USB 2.0 ports for peripherals. Video output options include HDMI and DisplayPort. A Gigabit Ethernet port handles wired networking. Audio is provided via 7.1-channel output. The board also has a PS/2 port for legacy keyboards or mice.

Efficient micro ATX Form Factor

The micro ATX design fits compact cases while offering key expansion slots. It includes one PCI Express x1 Gen 3.x slot. The board measures 236 mm x 229 mm x 36.5 mm. This size balances build flexibility with space efficiency. It is suitable for small form factor (SFF) builds and office PCs.

Box contents

• ASUS PRIME B840M-R motherboard
• User guide and support documentation
• SATA cables
• I/O shield
• M.2 screw packages

Check before you buy

• Confirm your case supports micro ATX (236 mm x 229 mm) and has adequate CPU cooler clearance.
• Verify your power supply has a 24-pin ATX and 8-pin EPS connector for the motherboard.
• Ensure your memory kit is DDR5-SDRAM and compatible with the board’s supported speeds.
• Note this board has no built-in Wi-Fi; plan for a wired Ethernet connection or add a Wi-Fi card.

Frequently Asked Questions

Q: Does the ASUS PRIME B840M-R support Wi-Fi?

A: No, this motherboard does not have built-in Wi-Fi. It uses a Gigabit Ethernet LAN port for networking.

Q: What is the maximum memory speed supported?

A: The board supports DDR5 memory overclocking up to 7600 MHz, depending on the CPU and memory module.

Q: How many storage drives can I install?

A: You can install up to six drives: two via M.2 slots and four via SATA III connectors.

Q: Is this motherboard compatible with Windows 11?

A: Yes, it supports Windows 11 and Windows 10 x64 operating systems.

Q: Does it include a TPM connector?

A: Yes, the board has a TPM connector for enhanced security features.

The Consultant’s verdict & warranty

The ASUS PRIME B840M-R is a practical choice for builders creating a compact AMD Ryzen system. It suits users who need DDR5 performance and essential connectivity without unnecessary extras. This board is ideal for office PCs, home servers, or budget-friendly gaming builds. Covered by the standard Manufacturer Warranty.