MSI PRO B840M-B AM5 DDR5 MATX Motherboard

The MSI PRO B840M-B AM5 DDR5 MATX motherboard delivers exceptional performance for gamers and crea...

Best current price£11.47from eBay

Best offers

Shopping.co.uk recommended and popular offers

Lowest price

eBay£11.47Visit shop

Rear DOOR LOCK H1 H2 Roof Burglary Rear Door for Ducato Relay Boxer X2508731

Visit shop

AWD-IT.co.uk£94.99Visit shop

Msi B550-A Pro Amd Ryzen B550 Atx Ddr4 Motherboard - Socket Am4

Visit shop

All Offers

107 offers from £11.47 - £259.99

View price history by clicking the chart icon.

eBayRear DOOR LOCK H1 H2 Roof Burglary Rear Door for Ducato Relay Boxer X2508731

Free delivery in 1–3 days

£11.47

Visit shop

AWD-IT.co.ukMsi A520m Pro Amd Ryzen Ddr4 M-Atx Motherboard - Socket Am4

Free delivery in 1–3 days

£47.99

Visit shop

CurrysMsi A520m-A Pro Am4 Motherboard, Black

Free delivery in 1–3 days

£49.99

Visit shop

Scan ComputersMsi Amd Ryzen Am4 Microatx Ddr4 Motherboard A520m-A Pro

£5.48 delivery

£49.99

Visit shop

PCHUB.UKMsi A520m-A Pro Motherboard Amd A520 Socket Am4 Micro Atx

Free delivery in 1–3 days

£54.36

Visit shop

Refurbished Offers

3 offers from £109.99 - £164.99

View price history by clicking the chart icon.

Scan ComputersMsi Amd B550 Open Box Atx Motherboard B550-A Pro

£5.48 delivery

£109.99

Visit shop

Used Offers

10 offers from £22.96 - £100.00

View price history by clicking the chart icon.

eBayFAULTY MSI A520M-A Pro motherboard mATX for AMD Ryzen 3rd Gen AM4 DDR4 READ B

Free delivery in 1–3 days

£22.96

Visit shop

Product Information

Full details

The MSI PRO B840M-B is a micro-ATX motherboard designed for professionals and PC enthusiasts seeking a reliable and high-performance foundation for their systems. It supports the latest AMD Ryzen processors and DDR5 memory, offering rapid data transfer and enhanced stability. A key benefit is its robust power design and efficient cooling, ensuring optimal performance even under heavy loads. However, its micro-ATX form factor may limit expansion options compared to larger motherboards. This guide provides detailed information to help you effectively use the MSI PRO B840M-B.

All features

Model Part Number	B840M-B
Brand	MSI

Extended Product Information

FAQs

What type of memory does the MSI PRO B840M-B support?

The motherboard supports DDR5 SDRAM.

What processors are compatible with this motherboard?

It is compatible with AMD Ryzen 7000, 8000, and 9000 Series processors (Socket AM5).

How many M.2 slots are available?

There are two M.2 Gen4 x4 64Gbps slots.

Does this motherboard support RAID?

Yes, it supports RAID levels 0, 1, and 10.

What is the maximum supported memory speed?

The motherboard supports memory speeds up to 8000 MHz (OC).

Does the motherboard have integrated Wi-Fi?

No, this motherboard does not have integrated Wi-Fi.

What is the form factor of this motherboard?

The form factor is micro ATX.

What is the warranty period for this product?

Warranty information is not available in the product data.

Troubleshooting

Computer won't boot.

Check all power connections, ensure the CPU and RAM are correctly installed, and verify the graphics card is properly seated.

System runs slowly.

Ensure the latest drivers are installed, check for overheating, and consider upgrading to an SSD for faster storage.

Network connectivity issues.

Check the network cable connection, update network drivers, and ensure your internet service is working.

No display output.

Ensure the monitor cable is correctly connected to the graphics card or onboard graphics port. Check if the RAM is properly installed.

Pros and Cons

Pros

Supports the latest AMD Ryzen processors for cutting-edge performance.
Offers fast storage options with dual M.2 Gen4 x4 slots.
Features a robust power design for stable and efficient operation.
Provides high-speed network connectivity with 2.5Gbps LAN.
Supports DDR5 memory for improved system responsiveness.
Includes a PCIe 4.0 x16 slot for modern graphics cards.

Cons

Micro-ATX form factor may limit expansion options compared to larger boards.
Requires an 8-pin power connector.
Limited number of USB 2.0 ports.
May require additional cooling for optimal performance in demanding tasks.

Setup, Compatibility & Care

Setup

Install CPU: Carefully align the CPU with the socket on the motherboard and gently secure it.
Install RAM: Insert the DDR5 memory modules into the DIMM slots, ensuring they click into place.
Install Storage: Install M.2 SSDs into the M.2 slots, securing them with screws. Connect SATA drives to the SATA III connectors.
Install Graphics Card: Insert the graphics card into the PCIe 4.0 x16 slot and secure it.
Connect Power: Connect the 8-pin power connector and other necessary power cables to the motherboard.
Install in Case: Mount the motherboard inside the PC case, using the provided standoffs.

Compatibility

CPU: Compatible with AMD Ryzen 7000, 8000, and 9000 Series processors (Socket AM5).
Memory: Supports DDR5 memory with speeds up to 8000 MHz (OC).
Storage: Supports M.2 SSDs and SATA drives.
Operating System: Compatible with Windows 11 x64.

Care

Keep the motherboard clean and free from dust. Use compressed air to remove dust from heatsinks and components regularly.
Avoid static electricity when handling the motherboard. Always ground yourself before touching components.
Ensure proper airflow within the PC case to prevent overheating.