MSI B550-A Pro Service Manual

SPECIFICATION

MOTHERBOARD

B550-A PRO

BUSINESS ELEGANCE

FEATURE

Core Boost

With premium layout and fully digital power design to support more cores and provide better performance.

DDR4 Boost

Advanced technology to deliver pure data signals for the best gaming performance and stability.

Lightning Gen4 solution

The latest Gen4 PCI-E and M.2 solution with up to 64GB/s bandwidth for maximum transfer speed.

M.2 Shield FROZR

Strengthened built-in M.2 thermal solution. Keeps M.2 SSDs safe while preventing throttling, making them run faster.

Model Name B550-A PRO

CPU Support

CPU Socket AMD Socket AM4

Chipset

Graphics Interface 1x PCIe 4.0 / 3.0 x16 slot + 1x PCIe 3.0 x16 slot

Display Interface DisplayPort, HDMI – Requires Processor Graphics

Memory Support 4 DIMMs, Dual Channel DDR4-4400 MHz (OC)

Expansion Slots 2x PCI-E 3.0 x1 slots

Storage 1 x M.2 Gen4 x4, 1 x M.2 Gen3 x4 slot

USB ports 2x USB 3.2 Gen 2 10Gbps (1 Type-A + 1 Type-C)

LAN

Audio 8-Channel (7.1) HD Audio with Audio Boost

Support for 3rd Gen AMD® Ryzenth processors and future AMD® Ryzen™ processors with BIOS update

AMD® B550 Chipset

Support 2-way AMD® CrossFire™ Technology

6x SATA 6Gb/s ports

+ 5x USB 3.2 Gen 1 5Gbps (4 Type-A+ 1 Type-C) + 8 x USB 2.0

Realtek® RTL8111H Gigabit LAN

CONNECTIONS

2oz Thickened Copper PCB

An enhanced PCB design improves heat dissipation and performance reliability.

PCI-E Steel Armor

Protecting VGA cards against bending and EMI

EZ Debug LED

Easiest way to troubleshoot.

Audio Boost

Reward your ears with studio grade sound quality for the most immersive audio experience.

Keyboard / Mouse1. DisplayPort2. LAN3. HD Audio Connectors4. Flash BIOS Button5.

USB 2.06. HDMI7. USB 2.08. USB 3.2 Gen 1 5Gbps Type-A9. USB 3.2 Gen 2 10Gbps Type-A+C10.

Generated 2020-05-22, check for the latest version www.msi.com/datasheet. The information provided in this document is intended for informational purposes only and is subject to change without notice.