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<變數 1> Contents
Contents
Safety Information ...........................................................................................2
Specifications ...................................................................................................3
Rear I/O Panel .................................................................................................6
LAN Port LED Status Table ........................................................................................6
Overview of Components ................................................................................7
CPU Socket .................................................................................................................8
DIMM Slots..................................................................................................................9
PCI_E1~2: PCIe Expansion Slots ................................................................................9
M2_1: M.2 Slot ..........................................................................................................10
SATA1~4: SATA 6Gb/s Connectors ...........................................................................10
JFP1, JFP2: Front Panel Connectors .......................................................................11
JAUD1: Front Audio Connector ................................................................................11
ATX_PWR1, CPU_PWR1: Power Connectors ...........................................................12
JUSB1, JUSB2: USB 2.0 Connectors ........................................................................13
JUSB3: USB 3.2 Gen1 Connector .............................................................................13
CPU_FAN1, SYS_FAN1: Fan Connectors .................................................................14
JTPM1: TPM Module Connector ...............................................................................14
JCI1: Chassis Intrusion Connector ...........................................................................15
JCOM1: Serial Port Connector .................................................................................15
JBAT1: Clear CMOS (Reset BIOS) Jumper ...............................................................16
EZ Debug LED ...........................................................................................................16
UEFI BIOS .......................................................................................................17
BIOS Setup ................................................................................................................18
Entering BIOS Setup .................................................................................................18
Resetting BIOS ..........................................................................................................18
Updating BIOS...........................................................................................................19
Installing OS, Drivers & Utilities ...................................................................20
Installing Windows® 10 .............................................................................................20
Installing Drivers ......................................................................................................20
Installing Utilities .....................................................................................................20
Thank you for purchasing the MSI® B550M-A PRO/ A520M-A
PRO motherboard. This User Guide gives information about
board layout, component overview, BIOS setup and software
installation.
2Safety Information
Safety Information
∙The components included in this package are prone to damage from electrostatic
discharge (ESD). Please adhere to the following instructions to ensure successful
computer assembly.
∙Ensure that all components are securely connected. Loose connections may cause
the computer to not recognize a component or fail to start.
∙Hold the motherboard by the edges to avoid touching sensitive components.
∙It is recommended to wear an electrostatic discharge (ESD) wrist strap when
handling the motherboard to prevent electrostatic damage. If an ESD wrist strap is
not available, discharge yourself of static electricity by touching another metal object
before handling the motherboard.
∙Store the motherboard in an electrostatic shielding container or on an anti-static
pad whenever the motherboard is not installed.
∙Before turning on the computer, ensure that there are no loose screws or metal
components on the motherboard or anywhere within the computer case.
∙Do not boot the computer before installation is completed. This could cause
permanent damage to the components as well as injury to the user.
∙If you need help during any installation step, please consult a certified computer
technician.
∙Always turn off the power supply and unplug the power cord from the power outlet
before installing or removing any computer component.
∙Keep this user guide for future reference.
∙Keep this motherboard away from humidity.
∙Make sure that your electrical outlet provides the same voltage as is indicated on
the PSU, before connecting the PSU to the electrical outlet.
∙Place the power cord such a way that people can not step on it. Do not place
anything over the power cord.
∙All cautions and warnings on the motherboard should be noted.
∙If any of the following situations arises, get the motherboard checked by service
personnel:
▪Liquid has penetrated into the computer.
▪The motherboard has been exposed to moisture.
▪The motherboard does not work well or you can not get it work according to
user guide.
▪The motherboard has been dropped and damaged.
▪The motherboard has obvious sign of breakage.
∙Do not leave this motherboard in an environment above 60°C (140°F), it may
damage the motherboard.
3
Safety Information Specications
Specifications
CPU Support 3rd Gen AMD Ryzen™ Desktop Processors and AMD
Ryzen™4000 G-Series Desktop Processors
Chipset ∙AMD B550 Chipset (B550M-A PRO)
∙AMD A520 Chipset (A520M-A PRO)
Memory
∙2x DDR4 memory slots, support up to 64GB*
▪Supports DDR4 1866/ 2133/ 2400/ 2667/ 2800/ 2933/
3000/ 3066/ 3200 MHz by JEDEC
▪Supports DDR4 2667/ 2800 /2933 /3000 /3066 /3200
/3466 /3600/ 3733 /3866 /4000 /4133 /4266 /4400/ 4600+
MHz by A-XMP OC MODE
▫1DPC 1R max speed 4600 MHz
▫1DPC 2R max speed 3866 MHz
∙Dual channel memory architecture
∙Supports non-ECC UDIMM memory
∙Supports ECC UDIMM memory (non-ECC mode)
∙Supports un-buffered memory
* Please refer www.msi.com for more information on
compatible memory.
Expansion Slots
∙1x PCIe 3.0 x1 slot
∙1x PCIe x16 slot
▪B550M-A PRO supports PCIe 4.0/3.0*
▪A520M-A PRO supports PCIe 3.0
* PCIe specifications may vary depending on the CPU
installed.
Onboard
Graphics
∙1x HDMI 2.1 port, supporting a maximum resolution of
4096x2160 @60Hz*/**
∙1x DVI-D port, supporting a maximum resolution of
1920x1200 @60Hz*
∙Maximum shared memory of 16GB
* Available for the processor with integrated graphics.
** Graphics specifications may vary depending on the CPU
installed.
Audio Realtek® ALC892 Codec
▪7.1-Channel High Definition Audio
Continued on next page
4Specications
Continued from previous page
LAN ∙1x Realtek® RTL8111H 1Gbps LAN controller
Storage
AMD B550/A520 Chipset
∙4x SATA 6Gb/s ports
∙1x M.2 slot (Key M) (from AMD Processor)
▪B550M-A PRO supports PCIe 4.0/3.0*
▪A520M-A PRO supports PCIe 3.0
▪Supports SATA 6Gb/s
▪Supports 2242/ 2260/ 2280 storage devices
* PCIe specifications may vary depending on the CPU
installed.
USB
AMD B550/A520 Chipset
▪2x USB 3.2 Gen 1 5Gbps ports are available through the
internal USB 3.2 Gen 1 5Gbps connector
▪6x USB 2.0 ports (2 Type-A ports on the back panel, 4
ports through the internal USB 2.0 connectors)
AMD Processor
▪4x USB 3.2 Gen 1 5Gbps Type-A ports on the back panel
Internal
Connectors
∙1x 24-pin ATX main power connector
∙1x 4-pin ATX 12V power connector
∙4x SATA 6Gb/s connectors
∙1x M.2 slots (M-Key)
∙1x USB 3.2 Gen 1 5Gbps connector (supports additional 2
USB 3.2 Gen 1 5Gbps ports)
∙2x USB 2.0 connectors (supports additional 4 USB 2.0 ports)
∙1x 4-pin CPU fan connector
∙1x 4-pin system fan connector
∙1x Front panel audio connector
∙2x System panel connectors
∙1x Chassis Intrusion connector
∙1x TPM module connector
∙1x Clear CMOS jumper
Continued on next page
5
Specications Specications
Continued from previous page
Back Panel
Connectors
∙1x HDMI port
∙1x DVI-D port
∙1x PS/2 mouse port
∙1x PS/2 keyboard port
∙4x USB 3.2 Gen 1 5Gbps Type-A ports
∙2x USB 2.0 Type-A ports
∙1x LAN (RJ45) port
∙3x audio jacks
I/O Controller NUVOTON NCT6687-R Controller Chip
Hardware
Monitor
∙CPU/ System/ Chipset temperature detection
∙CPU/ System fan speed detection
∙CPU/ System fan speed control
Form Factor ∙mATX Form Factor
∙9.3 in. x 7.9 in. (23.6 cm x 20 cm)
BIOS Features
∙1x 256 Mb flash
∙UEFI AMI BIOS
∙ACPI 6.0, SMBIOS 2.8
∙Multi-language
Software
∙Drivers
∙DRAGON CENTER
∙CPU-Z MSI GAMING
∙Google Chrome™, Google Toolbar, Google Drive
∙Norton™ Internet Security Solution
Dragon Center
Features
∙User Scenario
∙Hardware Monitor
∙True Color
∙Live Update
∙Speed Up
∙Smart Tool
∙Super Charger
Please refer to http://
download.msi.com/manual/
mb/DRAGONCENTER2.pdf for
more details.