MSI MEG B550 UNIFY User manual

I
Quick Start
Quick Start
Thank you for purchasing the MSI® MEG B550 UNIFY motherboard.
This Quick Start section provides demonstration diagrams about
how to install your computer. Some of the installations also provide
video demonstrations. Please link to the URL to watch it with the web
browser on your phone or tablet. You may have even link to the URL
by scanning the QR code.
Kurzanleitung
Danke, dass Sie das MSI® MEG B550 UNIFY Motherboard gewählt
haben. Dieser Abschnitt der Kurzanleitung bietet eine Demo zur
Installation Ihres Computers. Manche Installationen bieten auch
die Videodemonstrationen. Klicken Sie auf die URL, um diese
Videoanleitung mit Ihrem Browser auf Ihrem Handy oder Table
anzusehen. Oder scannen Sie auch den QR Code mit Ihrem Handy,
um die URL zu öffnen.
Présentation rapide
Merci d’avoir choisi la carte mère MSI® MEG B550 UNIFY. Ce manuel
fournit une rapide présentation avec des illustrations explicatives
qui vous aideront à assembler votre ordinateur. Des tutoriels vidéo
sont disponibles pour certaines étapes. Cliquez sur le lien fourni
pour regarder la vidéo sur votre téléphone ou votre tablette. Vous
pouvez également accéder au lien en scannant le QR code qui lui est
associé.
Быстрый старт
Благодарим вас за покупку материнской платы MSI® MEG B550
UNIFY. В этом разделе представлена информация, которая
поможет вам при сборке комьютера. Для некоторых этапов сборки
имеются видеоинструкции. Для просмотра видео, необходимо
открыть соответствующую ссылку в веб-браузере на вашем
телефоне или планшете. Вы также можете выполнить переход по
ссылке, путем сканирования QR-кода.

II Quick Start
1
2
3
6
4
5
7
8
9
CPU_FAN1
Youtube
https://youtu.be/Xv89nhFk1vc
⚽
Installing a Processor/ Installation des Prozessors/ Installer un
processeur/ Установка процессора

III
Quick Start
1
23
⚠
Important
If you are installing the screw-type CPU heatsink, please follow the figure below to
remove the retention module first and then install the heatsink.
Wenn Sie einen CPU-Kühler mit Schraubenbefestigung einsetzen, folgen Sie bitte
den Anweisungen unten um das Retention-Modul zu entfernen und den Kühler zu
installieren.
Si vous voulez installer un ventirad pour processeur à vis, veuillez suivre les
instructions ci-dessous pour d’abord retirer le module de rétention puis installer le
ventirad.

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

IV Quick Start
http://youtu.be/T03aDrJPyQs
Youtube
DIMMA2 DIMMA2
DIMMB2
DIMMA1
DIMMA2
DIMMB1
DIMMB2
⚽
Installing DDR4 memory/ Installation des DDR4-Speichers/
Installer une mémoire DDR4/ Установка памяти DDR4

V
Quick Start
http://youtu.be/DPELIdVNZUI
Youtube
HDD LED
RESET SW
JFP1
HDD LED HDD LED -
HDD LED +
POWER LED -
POWER LED +
POWER LED
1
2 10
9
+
+
+- -- -
+
Power LED
HDD LED Reset Switch
Reserved
Power Switch
JFP1
1 HDD LED + 2 Power LED +
3 HDD LED - 4 Power LED -
5 Reset Switch 6 Power Switch
7 Reset Switch 8 Power Switch
9 Reserved 10 No Pin
RESET SW
POWER SW
POWER LED+
POWER LED-
HDD LED
⚽
Connecting the Front Panel Header/ Anschließen der
Frontpanel-Stiftleiste/ Connecter un connecteur du panneau
avant/ Подключение разъемов передней панели

VI Quick Start
1
Torque:
3 kgf·cm*
*3 kgf·cm
= 0.3 N·m
= 2.6 lbf·in
BAT1
2
https://youtu.be/wWI6Qt51Wnc
⚽
Youtube
Installing the Motherboard/ Installation des Motherboards/
Installer la carte mère/ Установка материнской платы

VII
Quick Start
ATX_PWR1
CPU_PWR2 PCIE_PWR1
CPU_PWR1
http://youtu.be/gkDYyR_83I4
Youtube
⚽
Connecting the Power Connectors/ Stromanschlüsse
anschliessen/ Connecter les câbles du module d’alimentation/
Подключение разъемов питания

VIII Quick Start
http://youtu.be/RZsMpqxythc
Youtube
1
23
4
5
⚽
Installing SATA Drives/ Installation der SATA-Laufwerke/
Installer le disque dur SATA/ Установка дисков SATA

IX
Quick Start
http://youtu.be/mG0GZpr9w_A
Youtube
1
2
3
4
5
6
⚽
Installing a Graphics Card/ Einbau der Grafikkarte/ Installer
une carte graphique/ Установка дискретной видеокарты

XQuick Start
Processor with integrated graphics
Connecting Peripheral Devices/ Peripheriegeräte/ Connecter
un périphérique anschliessen/ Подключение периферийных
устройств

XI
Quick Start
4
3
12
Power On/ Einschalten/ Mettre sous-tension/ Включение
питания

XII Quick Start
NOTE

1
Contents
Contents
Safety Information................................................................................................. 3
Specifications......................................................................................................... 4
Package contents ................................................................................................ 11
Rear I/O Panel ..................................................................................................... 12
LAN Port LED Status Table .................................................................................. 12
Audio Ports Configuration.................................................................................... 12
Realtek Audio Console ......................................................................................... 13
Installing Antennas............................................................................................... 15
Overview of Components .................................................................................... 16
Processor Socket ................................................................................................. 17
DIMM Slots............................................................................................................ 18
PCI_E1~4: PCIe Expansion Slots.......................................................................... 19
M2_1~4: M.2 Slots (Key M) ................................................................................... 23
SATA1~6: SATA 6Gb/s Connectors....................................................................... 25
JFP1, JFP2: Front Panel Connectors................................................................... 26
JAUD1: Front Audio Connector ............................................................................ 26
CPU_PWR1~2, ATX_PWR1, PCIE_PWR1: Power Connectors ............................. 27
JUSB3~4: USB 2.0 Connectors............................................................................. 28
JUSB1: USB 3.2 Gen 2 10Gbps Type-C Connector............................................... 28
JUSB2: USB 3.2 Gen 1 5Gbps Connector ............................................................. 29
JTPM1: TPM Module Connector........................................................................... 29
CPU_FAN1, PUMP_FAN1, SYS_FAN1~6: Fan Connectors.................................. 30
JCI1: Chassis Intrusion Connector....................................................................... 31
JBAT1: Clear CMOS (Reset BIOS) Jumper........................................................... 32
POWER1, RESET1: Power Button, Reset Button ................................................. 32
JRGB1: RGB LED connector................................................................................. 33
JRAINBOW1~2: Addressable RGB LED connectors ............................................ 34
JCORSAIR1: CORSAIR Connector ........................................................................ 35
Onboard LEDs...................................................................................................... 36
EZ Debug LED....................................................................................................... 36
LED_SW1: EZ LED Control................................................................................... 36
Debug Code LED................................................................................................... 36
Hexadecimal Character Table.............................................................................. 37
Boot Phases.......................................................................................................... 37
Debug Code LED Table......................................................................................... 37
ACPI States Codes................................................................................................ 41

2Contents
Installing OS, Drivers & Utilities ......................................................................... 42
Installing Windows® 10......................................................................................... 42
Installing Drivers .................................................................................................. 42
Installing Utilities ................................................................................................. 42
UEFI BIOS............................................................................................................. 43
BIOS Setup............................................................................................................ 44
Entering BIOS Setup............................................................................................. 44
Resetting BIOS...................................................................................................... 45
Updating BIOS....................................................................................................... 45
EZ Mode ................................................................................................................ 47
Advanced Mode .................................................................................................... 50
OC Menu................................................................................................................ 51

3
Safety 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.

4Specifications
Specifications
CPU
Supports AMD RyzenTM 5000 & 3000 Series desktop
processors (not compatible with AMD RyzenTM 5 3400G &
RyzenTM 3 3200G) and AMD RyzenTM 4000 G-Series desktop
processors for AM4 socket
Chipset AMD B550 Chipset
Memory
∙4x DDR4 memory slots, support up to 128GB*
▪Supports DDR4 1866/ 2133/ 2400/ 2667/ 2800/ 2933/
3000/ 3066/ 3200 MHz by JEDEC
▪AMD RyzenTM 4000 G-Series processors support DDR4
2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466/ 3600/ 3733/
3866/ 4000/ 4133/ 4266/ 4400/ 4533/ 4600/ 4733/ 4866/
5000/ 5100+ (Max. 5600) MHz by A-XMP OC MODE
▪AMD RyzenTM 5000 & 3000 Series processors (not
compatible with RyzenTM 5 3400G & RyzenTM 3 3200G)
support DDR4 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466/
3600/ 3733/ 3866/ 4000/ 4133/ 4266/ 4400/ 4533/ 4600/
4733/ 4866/ 5000/ 5100+ MHz by A-XMP OC MODE
▪AMD RyzenTM 4000 G-Series processors
▫1DPC 1R max speed 5100 MHz (QVL), Max. 5600 MHz
▫1DPC 2R max speed 4266 MHz
▫2DPC 1R max speed 4400 MHz
▫2DPC 2R max speed 3600 MHz
▪AMD RyzenTM 5000 & 3000 Series processors (not
compatible with AMD RyzenTM 5 3400G & RyzenTM 3
3200G)
▫1DPC 1R max speed 5100 MHz
▫1DPC 2R max speed 4000 MHz
▫2DPC 1R max speed 4000 MHz
▫2DPC 2R max speed 3600 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.
Continued on next page

5
Specifications
Continued from previous page
Onboard Graphics
∙1 x HDMI 2.1 port, supporting a maximum resolution of
4096x2160 @120 Hz*/**
∙Maximum shared memory of 16GB
* Available for the processor with integrated graphics.
** Graphics specifications may vary depending on the CPU installed.
Multi-GPU ∙Supports 2-Way AMD CrossFire ™ Technology
Storage
∙6x SATA 6Gb/s ports*/ ** (from Chipset)
∙4x M.2 slots (Key M)
▪M2_1 slot (from CPU)
▫Supports PCIe 4.0/ 3.0 x4***
▫Supports SATA 6Gb/s
▫Supports 2280/ 22110 storage devices
▪M2_2 slot
▫Chipset support mode (default, from Chipset ) -
supports PCIe 3.0 x2
▫CPU support mode (From CPU) - supports PCIe 4.0/
3.0 x4 ***/****
▫Supports 2280 storage devices
▪M2_3 slot
▫Chipset support mode (default, from Chipset ) -
supports PCIe 3.0 x2**
▫CPU support mode (From CPU) - supports PCIe 4.0/
3.0 x4**/ ***/ ****
▫Supports SATA 6Gb/s*
▫Supports 2280/ 22110 storage devices
▪M2_4 slot (from Chipset)
▫Supports PCIe 3.0 x4
▫Supports 2280 storage devices
* The SATA5 port will be unavailable when installing M.2 SATA SSD into M2_3.
** The SATA5 and SATA6 ports will be unavailable when installing M.2 PCIe SSD
into M2_3.
*** M.2 specifications may vary depending on the CPU installed.
**** Please refer to PCIe bandwidth configuration table for PCIe & M.2 slots
(page 20) for details.
Continued on next page

6Specifications
Continued from previous page
RAID
∙Supports RAID 0, RAID 1 and RAID 10 for SATA storage
devices
∙Supports RAID 0, RAID 1 and RAID 10 for M.2 NVMe
storage devices
Expansion Slot
AMD Processor
∙1x PCIe 4.0/ 3.0 x16 slot (PCI_E1)*
▪Supports x16 or x8 mode**
AMD B550 Chipset
∙1x PCIe 3.0 x16 slot , support x4 mode (PCI_E4)***
∙2x PCIe 3.0 x1 slots (PCI_E2 & PCI_E3)****
* PCIe specifications may vary depending on the CPU installed.
** Please refer to PCIe bandwidth configuration table for PCIe & M.2 slots
(page 20) for details.
*** The PCI_E4 slot will be unavailable, when installing M.2 SSD into M2_4.
**** The both PCIe x1 slots will be unavailable after you install the M.2 SSD into
M2_2 slot in Chipset support mode (default mode).
USB
AMD Processor
▪4x USB 3.2 Gen 2 10Gbps ports(3 Type-A ports and 1
Type-C port) on the back panel
AMD B550 chipset
▪1x USB 3.2 Gen 2 10Gbps Type-C internal connector
▪2x USB 3.2 Gen 1 5Gbps ports are available through
the internal USB 3.2 Gen 1 5Gbps connector
▪4x USB 2.0 ports on the back channel
AMD B550 chipset + USB 2.0 Hubs
▪4x USB 2.0 ports are available through the internal
USB 2.0 connectors
LAN 1x Realtek® RTL8125B 2.5Gbps LAN controller
Continued on next page

7
Specifications
Continued from previous page
Wireless LAN &
Bluetooth®
Intel® Wi-Fi 6 AX200
∙The Wireless module is pre-installed in the M2_WIFI1
(Key-E) slot
∙Supports MU-MIMO TX/RX, 2.4GHz/ 5GHz (160MHz) up to
2.4Gbps
∙Supports 802.11 a/ b/ g/ n/ ac/ ax
∙Supports Bluetooth® 5.1
Audio
Realtek® ALC1220P Codec
▪7.1-Channel High Definition Audio
▪Supports Optical S/PDIF output
Internal Connectors
∙1x 24-pin ATX main power connector
∙2x 8-pin ATX 12V power connector
∙1x 6-pin PCIE power connector
∙6x SATA 6Gb/s connectors
∙4x M.2 slots (M-Key)
∙1x USB 3.2 Gen 2 10Gbps Type-C port
∙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 water-pump fan connector
∙6x 4-pin system fan connectors
∙1x Front panel audio connector
∙2x System panel connectors
∙1x Chassis Intrusion connector
∙1x 4-pin RGB LED connectors
∙2x 3-pin RAINBOW LED connectors
∙1x 3-pin CORSAIR LED connector
∙1x TPM module connector
∙1x Clear CMOS jumper
∙1x Power button
∙1x Reset button
Continued on next page

8Specifications
Continued from previous page
Back Panel
Connectors
∙1x Clear CMOS Button
∙1x Flash BIOS Button
∙1x PS/2 keyboard/ mouse combo port
∙4x USB 2.0 Type-A ports
∙1x HDMI port
∙2x USB 3.2 Gen 2 10Gbps Type-A ports
∙1x 2.5 Gbps LAN (RJ45) port
∙1x USB 3.2 Gen 2 10Gbps Type-A port
∙1x USB 3.2 Gen 2 10Gbps Type-C port
∙2x Wi-Fi Antenna connectors
∙5x audio jacks
∙1x Optical S/PDIF Out connector
LED Features
∙1x EZ LED Control switch
∙1x 2-Digit Debug Code LED
∙4x EZ Debug LED
I/O Controller NUVOTON NCT6687D-R Controller Chip
Hardware Monitor
∙CPU/ System/ Chipset temperature detection
∙CPU/ System/ Pump fan speed detection
∙CPU/ System/ Pump fan speed control
Form Factor ∙ATX Form Factor
∙12 in. x 9.6 in. (30.4 cm x 24.4 cm)
BIOS Features
∙1x 256 Mb flash
∙UEFI AMI BIOS
∙ACPI 6.1 , SMBIOS 2.8
∙Multi-language
Continued on next page