Asrock B550 Phantom Gaming-ITX/ax User Manual

Version 1.0

Published May 2020

Copyright©2020 ASRock INC. All rights reserved.

Copyright Notice:

No part of this documentation may be reproduced, transcribed, transmitted, or
translated in any language, in any form or by any means, except duplication of
documentation by the purchaser for backup purpose, without written consent of
ASRock Inc.

Products and corporate names appearing in this documentation may or may not
be registered trademarks or copyrights of their respective companies, and are used
only for identication or explanation and to the owners’ benet, without intent to

infringe.

Disclaimer:

Specications and information contained in this documentation are furnished for
informational use only and subject to change without notice, and should not be
constructed as a commitment by ASRock. ASRock assumes no responsibility for
any errors or omissions that may appear in this documentation.

With respect to the contents of this documentation, ASRock does not provide
warranty of any kind, either expressed or implied, including but not limited to
the implied warranties or conditions of merchantability or tness for a particular
purpose.

In no event shall ASRock, its directors, ocers, employees, or agents be liable for
any indirect, special, incidental, or consequential damages (including damages for
loss of prots, loss of business, loss of data, interruption of business and the like),
even if ASRock has been advised of the possibility of such damages arising from any
defect or error in the documentation or product.

is device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that

may cause undesired operation.

CALIFORNIA, USA ONLY

e Lithium battery adopted on this motherboard contains Perchlorate, a toxic substance
controlled in Perchlorate Best Management Practices (BMP) regulations passed by the
California Legislature. When you discard the Lithium battery in California, USA, please
follow the related regulations in advance.
“Perchlorate Material-special handling may apply, see ww w.dtsc.ca.gov/hazardouswaste/
perchlorate”

ASRock Website: http://www.asrock.com

AUSTRALIA ONLY

Our goods come with guarantees that cannot be excluded under the Australian
Consumer Law. You are entitled to a replacement or refund for a major failure and
compensation for any other reasonably foreseeable loss or damage caused by our
goods. You are also entitled to have the goods repaired or replaced if the goods fail
to be of acceptable quality and the failure does not amount to a major failure. If
you require assistance please call ASRock Tel : [phone] ext.123 (Standard
International call charges apply)

e terms HDMI® and HDMI High-Denition Multimedia Interface, and the
HDMI logo are trademarks or registered trademarks of HDMI Licensing LLC in the
United States and other countries.

CE Warning

is device complies with directive 2014/53/EU issued by the Commision of the European
Community.

is equipment complies with EU radiation exposure limits set forth for an uncontrolled
environment.
is equipment should be installed and operated with minimum distance 20cm between
the radiator & your body.

Operations in the 5.15-5.35GHz band are restricted to indoor usage only.

Radio transmit power per transceiver ty pe

Function Frequency Maximum Output Power (EIRP)

2400-2483.5 MHz 18.5 + / -1.5 dbm

5150-5250 MHz 21.5 + / -1.5 dbm

WiFi

Bluetooth 2400-2483.5 MHz 8.5 + / -1.5 dbm

5250-5350 MHz

5470-5725 MHz

18.5 + / -1.5 dbm (no TPC)

21.5 + / -1.5 dbm (TPC)

25.5 + / -1.5 dbm (no TPC)

28.5 + / -1.5 dbm (TPC)

Contents

Chapter 1 Introduction 1

1.1 Package Contents 1

1.2 Specications 2

1.3 Motherboard Layout 7

1.4 I/O Panel 10

1.5 WiFi-802.11ax Module and ASRock WiFi 2.4/5 GHz Antenna 11

Chapter 2 Installation 12

2.1 Installing the CPU 13

2.2 Installing the CPU Fan and Heatsink 15

2.3 Installing Memory Modules (DIMM) 23

2.4 Expansion Slots (PCI Express Slots) 25

2.5 Jumpers Setup 26

2.6 Onboard Headers and Connectors 27

2.7 M.2_SSD (NGFF) Module Installation Guide (M2_1) 32

2.8 M.2_SSD (NGFF) Module Installation Guide 35

Chapter 3 Software and Utilities Operation 38

3.1 Installing Drivers 38

3.2 ASRock Motherboard Utility (Phantom Gaming Tuning) 39

3.2.1 Installing ASRock Motherboard Utility (APhantom Gaming
Tuning) 39

3.2.2 Using ASRock Motherboard Utility (Phantom Gaming Tuning) 39

3.3 ASRock Live Update & APP Shop 42

3.3.1 UI Overview 42

3.3.2 Apps 43

3.3.3 BIOS & Drivers 46

3.3.4 Setting 47

3.4 Nahimic Audio 48

3.5 ASRock Polychrome SYNC 49

Chapter 4 UEFI SETUP UTILITY 52

4.1 Introduction 52

4.1.1 UEFI Menu Bar 52

4.1.2 Navigation Keys 53

4.2 Main Screen 54

4.3 OC Tweaker Screen 55

4.4 Advanced Screen 59

4.4.1 CPU Conguration 60

4.4.2 Onboard Devices Conguration 61

4.4.3 Storage Conguration 63

4.4.4 ACPI Conguration 64

4.4.5 Trusted Computing 65

4.4.6 AMD PBS 66

4.4.7 AMD Overclocking 67

4.4.8 AMD CBS 68

4.5 Tools 69

4.6 Hardware Health Event Monitoring Screen 70

4.7 Security Screen 72

4.8 Boot Screen 73

4.9 Exit Screen 76

B550 Phantom Gaming-ITX/ax

Chapter 1 Introduction

ank you for purchasing ASRock B550 Phantom Gaming-ITX/ax motherboard,

a reliable motherboard produced under ASRock ’s consistently stringent quality

control. It delivers excellent performance with robust design conforming to

ASRock’s commitment to quality and endurance.

In this documentation, Chapter 1 and 2 contains the introduction of the

motherboard and step-by-step installation guides. Chapter 3 contains the operation

guide of the soware and utilities. Chapter 4 contains the conguration guide of

the BIOS setup.

Becau se the motherboard specications and the BIOS soware might be updated, the
content of this documentation will be subject to change without notice. In case any
modications of this documentation occur, the updated version will be available on
ASRock’s website w ithout f urther notice. If you require technical support relate d to
this motherboard, please vi sit our website for s pecic information about the model
you are using. You may nd the l atest VGA cards and CPU suppor t list on ASRock’s
website a s well. ASRock website ht tp://www.a srock.com.

1.1 Package Contents

ASRock B550 Phantom Gaming-ITX/ax Motherboard (Mini-ITX Form Factor)

•

ASRock B550 Phantom Gaming-ITX/ax Quick Installation Guide

•

ASRock B550 Phantom Gaming-ITX/ax Support CD

•

2 x Serial ATA (SATA) Data Cables (Optional)

•

1 x Screw for M.2 Socket (Optional)

•

1 x ASRock WiFi 2.4/5 GHz Antenna (Optional)

•

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1

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1.2 Specications

Platform

CPU

Chipset

Memory

•

•

•

•

* Not compatible with AMD AthlonTM Processors.

•

•

•

•

•

•

•

* Please refer to Memory Support List on ASRock’s website for

more information. (http://www.asrock.com/)

* Please refer to page 23 for DDR4 UDIMM maximum

frequency support.

•

•

•

Mini-ITX Form Factor

8 Layer PCB

2oz Copper PCB

Supports AMD AM4 Socket RyzenTM 3000, 3000 G-Series,

4000 G-Series, 5000 and 5000 G-Series Desktop Processors*

Digi Power design

8 Power Phase design

AMD B550

Dual Channel DDR4 Memory Technology

2 x DDR4 DIMM Slots

AMD Ryzen series CPUs (Matisse) support DDR4 4733+

(OC)/4666(OC)/4600(OC)/4533(OC)/4466(OC)/4400

(OC)/4333(OC)/4266(OC)/4200(OC)/4133(OC)/4000

(OC)/3866(OC)/3800(OC)/3733(OC)/3600(OC)/3466

(OC)/3200/2933/2667/2400/2133 ECC & non-ECC, un-

buered memory*

AMD Ryzen series APUs (Renoir) support DDR4 4733+

(OC)/4666(OC)/4600(OC)/4533(OC)/4466(OC)/4400

(OC)/4333(OC)/4266(OC)/4200(OC)/4133(OC)/4000

(OC)/3866(OC)/3800(OC)/3733(OC)/3600(OC)/3466

(OC)/3200/2933/2667/2400/2133 ECC & non-ECC, un-

buered memory*

Max. capacity of system memory: 64GB

Supports Extreme Memory Prole (XMP) memory modules

15μ Gold Contact in DIMM Slots

2

B550 Phantom Gaming-ITX/ax

Expansion
Slot

Graphics

AMD Ryzen series CPUs (Matisse)

1 x PCI Express x16 Slot (PCIE1: Gen4x16 mode)*

•

AMD Ryzen series APUs (Renoir)

1 x PCI Express x16 Slot (PCIE1: Gen3x16 mode)*

•

* Supports NVMe SSD as boot disks

1 x Vertical M.2 Socket (Key E) with the bundled WiFi-

•

802.11ax module (on the rear I/O)

15μ Gold Contact in VGA PCIe Slot (PCIE1)

•

Integrated AMD RadeonTM Vega Series Graphics in Ryzen

•

Series APU*

* Actual support may vary by CPU

DirectX 12, Pixel Shader 5.0

•

Shared memory default 2GB. Max Shared memory supports

•

up to 16GB.

* e Max shared memory 16GB requires 32GB system memory

installed.

Dual graphics output: support HDMI and DisplayPort 1.4

•

ports by independent display controllers

Supports HDMI 2.1 with max. resolution up to 4K x 2K

•

(4096x2160) @ 60Hz

Supports DisplayPort 1.4 with max. resolution up to 5K

•

(5120x2880)@120Hz

Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and

•

HBR (High Bit Rate Audio) with HDMI 2.1 Port (Compliant

HDMI monitor is required)

Supports HDR (High Dynamic Range) with HDMI 2.1

•

Supports HDCP 2.3 with HDMI 2.1 and DisplayPort 1.4

•

Ports

Supports 4K Ultra HD (UHD) playback with HDMI 2.1 and

•

DisplayPort 1.4 Ports

Supports Microso PlayReady®

•

Audio

7.1 CH HD Audio with Content Protection (Realtek

•

ALC1220 Audio Codec)

Premium Blu-ray Audio support

•

Supports Surge Protection

•

120dB SNR DAC with Dierential Amplier

•

Pure Power-In

•

Direct Drive Technology

•

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3

LAN

Wireless
LAN

Rear Panel
I/O

PCB Isolate Shielding

•

Impedance Sensing on Rear Out port

•

Individual PCB Layers for R/L Audio Channel

•

15μ Gold Audio Connector

•

Nahimic Audio

•

2.5 Gigabit LAN 10/100/1000/2500 Mb/s

•

GigaLAN Intel® I225V

•

Supports Wake-On-LAN

•

Supports Lightning/ESD Protection

•

Supports Energy Ecient Ethernet 802.3az

•

Supports PXE

•

Intel® 802.11ax WiFi Module

•

Supports IEEE 802.11a/b/g/n/ax

•

Supports Dual-Band (2.4/5 GHz)

•

Supports WiFi6 802.11ax (2.4Gbps)

•

2 antennas to support 2 (Transmit) x 2 (Receive) diversity

•

technolog y

Supports Bluetooth 5.2 + High speed class II

•

Supports MU-MIMO

•

2 x Antenna Ports

•

1 x HDMI Port

•

1 x DisplayPort 1.4

•

1 x USB 3.2 Gen2 Type-A Port (10 Gb/s) (Supports ESD

•

Protection)

1 x USB 3.2 Gen2 Type-C Port (10 Gb/s) (Supports ESD

•

Protection)

4 x USB 3.2 Gen1 Ports (Supports ESD Protection)

•

1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED

•

LED)

HD Audio Jacks: Line in / Front Speaker / Microphone

•

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4

Storage

4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0,

•

RAID 1 and RAID 10), NCQ, AHCI and Hot Plug

1 x Hyper M.2 Socket (M2_1), supports M Key type 2280 M.2

•

PCI Express module up to Gen4x4 (64 Gb/s) (with Matisse)

or Gen3x4 (32 Gb/s) (with Renoir)*

Connector

B550 Phantom Gaming-ITX/ax

1 x M.2 Socket, supports M Key t ype 2280 M.2 SATA3 6.0

•

Gb/s module and M.2 PCI Express module up to Gen3 x4 (32

Gb/s)*

* Supports NVMe SSD as boot disks

* Supports ASRock U.2 Kit (M2_1)

1 x RGB LED Header

•

* Supports in total up to 12V/3A, 36W LED Strip

1 x Addressable LED Header

•

* Supports in total up to 5V/3A, 15W LED Strip

1 x CPU Fan Connector (4-pin)

•

* e CPU Fan Connector supports the CPU fan of ma ximum

1A (12W) fan power.

1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan

•

Speed Control)

1 x Chassis/Water Pump Fan Connector (4-pin) (Smart Fan

•

Speed Control)

* e Chassis/Water Pump Fan supports the water cooler fan of

maximum 2A (24W) fan power.

* CPU_FAN2/WP and CHA_FAN1/WP can auto detect if 3-pin

or 4-pin fan is in use.

1 x 24 pin ATX Power Connector (Hi-Density Power Con-

•

nector)

1 x 8 pin 12V Power Connector (Hi-Density Power Connec-

•

tor)

1 x Front Panel Audio Connector (15μ Gold Audio Connec-

•

tor)

1 x USB 2.0 Header (Supports 2 USB 2.0 ports) (Supports

•

ESD Protection)

1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports)

•

(Supports ESD Protection)

1 x Front Panel Type C USB 3.2 Gen2 Header (Supports ESD

•

Protection)

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5

BIOS
Feature

Hardware
Monitor

OS

Certica­tions

AMI UEFI Legal BIOS with GUI support

•

Supports “Plug and Play”

•

ACPI 5.1 compliance wake up events

•

Supports jumperfree

•

SMBIOS 2.3 support

•

CPU, CPU VDDCR_SOC, DRAM, VPPM, Chipset 1.05V,

•

2.50V, +1.8V, VDDP Voltage Multi-adjustment

Temperature Sensing: CPU, CPU/Water Pump, Chassis/Wa-

•

ter Pump Fans

Fan Tachometer: CPU, CPU/Water Pump, Chassis/Water

•

Pump Fans

Quiet Fan (Auto adjust chassis fan speed by CPU tempera-

•

ture): CPU, CPU/Water Pump, Chassis/Water Pump Fans

Fan Multi-Speed Control: CPU, CPU/Water Pump, Chassis/

•

Water Pump Fans

Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore

•

Microso® Windows® 10 64-bit

•

FCC, CE

•

ErP/EuP ready (ErP/EuP ready power supply is required)

•

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6

* For detailed product information, please visit our website: http://ww w.asrock.com

Please realize that the re is a certain r isk involved with overclocking, including
adjusting the setting in the BIOS, applying Untied Overclocking Technol ogy, or using
third-party overclocking tool s. Overclocking may aect your system’s stability, or
even cause dam age to the components and devices of your system. It should be done
at your own risk and expense. We are not responsible for poss ible damage caused by
overclocking.

1.3 Motherboard Layout

Top Side View

B550 Phantom Gaming-ITX/ax

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7

Back Side View

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8

No. Description

1 ATX 12V Power Connector (ATX12V1)

2 CPU Fan Connector (CPU_FAN1)

3 Addressable LED Header (ADDR_LED1)

4 RGB LED Header (RGB_LED1)

5 CPU/Water Pump Fan Connector (CPU_FAN2/WP)

6 2 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1)

7 ATX Power Connector (ATXPWR1)

8 SATA3 Connectors (SATA3_1_2)

9 SATA3 Connectors (SATA3_3_4)

10 USB 3.2 Gen1 Header (USB3_5_6)

11 System Panel Header (PANEL1)

12 USB 2.0 Header (USB_1_2)

13 Front Panel Type C USB 3.2 Gen2 Header (USB32_TC_2)

14 Clear CMOS Jumper (CLRCMOS1)

15 Chassis/Water Pump Fan Connector (CHA_FAN1/WP)

16 Chassis Speaker Header (SPEAKER1)

17 Front Panel Audio Header (HD_AUDIO1)

B550 Phantom Gaming-ITX/ax

English

9

1.4 I/O Panel

1

2

3

4

5

10

9

8

7

6

No. Description No. Description

1 2.5G LAN RJ-45 Port (Intel® I225V)* 6 Antenna Ports

USB 3.2 Gen2 Type-A Port

2

(USB32_TA_1)

7 Microphone (Pink)**

3 DisplayPort 1.4 8 USB 3.2 Gen1 Ports

4 Line In (Light Blue)** 9 HDMI Port

5 Front Speaker (Lime)** 10

* ere are two LEDs on each LAN port. Please refer to the table below for the LAN port LED indications .

ACT/LINK L ED

SPEED LE D

LAN Por t

USB 3.2 Gen2 Type-C Port

(USB32_TC_1)

Activity / Link LED Speed LED

Status Description Status Description

O No Link O 10Mbps connection
Blinking Data Activity Orange 100Mbps/1Gbps connection

On Link Green 2.5Gbps connection

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10

** Function of the Au dio Ports in 7.1-channel Con guration:

Port Function

Light Blue (Rear panel) Rear Speaker Out
Lime (Rear panel) Front Speaker Out
Pink (Rear panel) Central /Subwoofer Speaker Out
Lime (Front panel) Side Speaker Out

B550 Phantom Gaming-ITX/ax

1.5 WiFi-802.11ax Module and ASRock WiFi 2.4/5 GHz Antenna

WiFi-802.11ax + BT Module

is motherboard comes with an exclusive WiFi 802.11 a/b/g/n/ax + BT v5.2 module

(pre-installed on the rear I/O panel) that oers support for WiFi 802.11 a/b/g/n/

ax connectivity standards and Bluetooth v5.2. WiFi + BT module is an easy-to-use

wireless local area network (WLAN) adapter to support WiFi + BT. Bluetooth v5.2

standard features Smart Ready technolog y that adds a whole new class of functionality

into the mobile devices. BT 5.2 also includes Low Energy Technolog y and ensures

extraordinary low power consumption for PCs. e 2T2R WiFi solution sets a WiFi

high speed standard and oers max link rate up to 2.4Gbps.

* e transmission speed may vary according to the environment.

ASRock WiFi 2.4/5 GHz Antenna

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11

Chapter 2 Installation

is is a Mini-ITX form factor motherboard. Before you install the motherboard,

study the conguration of your chassis to ensure that the motherboard ts into it.

Pre-installation Precautions

Take note of the following precautions before you install motherboard components

or change any motherboard settings.

Make sure to unplug the power cord before installing or removing the motherboard.

•

Failure to do so may cause physical injuries to you and damages to motherboard

components.

In order to avoid damage from static electricity to the motherboard’s components,

•

NEVER place your motherboard directly on a carpet. Also remember to use a grounded

wrist strap or touch a safety grounded object before you handle the components.

Hold components by the edges and do not touch the ICs.

•

Whenever you uninstall any components, place them on a grounded anti-static pad or

•

in the bag that comes with the components.

When placing screws to secure the motherboard to the chassis, please do not over-

•

tighten the screws! Doing so may damage the motherboard.

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12

2.1 Installing the CPU

Unplug all power cables be fore installing the CPU.

1

B550 Phantom Gaming-ITX/ax

2

English

13

3

English

14

B550 Phantom Gaming-ITX/ax

2.2 Installing the CPU Fan and Heatsink

Aer you install the CPU into this motherboard, it is necessary to install a larger

heatsink and cooling fan to dissipate heat. You also need to spray thermal grease

between the CPU and the heatsink to improve heat dissipation. Ma ke sure that the

CPU and the heatsink are securely fastened and in good contact with each other.

Please turn o the power or remove the power cord before changing a CPU or heatsink.

Installing the CPU Box Cooler SR1

1

2

English

15

3

English

16

4

1

N

FA

_

U

P

C

Installing the AM4 Box Cooler SR2

1

B550 Phantom Gaming-ITX/ax

2

English

17

3

English

18

B550 Phantom Gaming-ITX/ax

4

1

N

FA

_

U

P

C

*e diagrams shown here are for reference only. e headers might be in a dierent position on

your motherboard.

19

English

Installing the AM4 Box Cooler SR3

1

English

20

2

B550 Phantom Gaming-ITX/ax

4

3

English

21

5

CPU_FAN1

6

English

22

1

N

FA

_

U

P

C

2

D

E

L

_

B

RG

+12V

*e diagrams shown here are for reference only. e headers might be in a dierent position

on your motherboard.

B550 Phantom Gaming-ITX/ax

2.3 Installing Memory Modules (DIMM)

is motherboard provides two 288-pin DDR4 (Double Data Rate 4) DIMM slots,

and supports Dual Channel Memory Technology.

1. For dual channel conguration, you always need to install identica l (the same

brand, speed , size and chip-type) DDR4 DIMM pairs.

2. It is unable to activate Dual Channel Memor y Technology with only one memory
module instal led.

3. It is not allowed to install a DDR, DDR2 or DDR3 memory module into a DDR4
slot; otherwise, this motherboard and DIMM may be damaged.

AMD non-XMP Memory Frequency Support

Ryzen Series CPUs (Matisse):

UDIMM Memory Slot

A1 B1

SR - 3200

- SR 3200

DR - 3200

- DR 3200

SR SR 3200

DR DR 3200

Ryzen Series APUs (Renoir):

UDIMM Memory Slot

A1 B1

SR - 3200

- SR 3200

DR - 3200

- DR 3200

SR SR 3200

DR DR 3200

Frequency

(Mhz)

Frequency

(Mhz)

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23

e DIMM only ts in one correct orie ntation. It will cause permanent dam age to
the mothe rboard and the DIMM if you force the DIMM into the slot at incor rect
orientation .

1

2

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24

3

B550 Phantom Gaming-ITX/ax

2.4 Expansion Slot (PCI Express Slot)

ere is 1 PCI Express slot on the motherboard.

Before installing an ex pansion card, please make sure that the power supply is
switched o or the power cord is unplugged. Plea se read the documentation of the
expan sion card and mak e necessary hardware settings for the card before you start
the installation.

PCIe slots:

PCIE1 (PCIe 4.0 x16 slot) is used for PCI Express x16 lane width graphics cards.

PCIe Slot Congurations

PCIE1

Ryzen Series CPUs (Matisse) Gen4x16

Ryzen Series APUs (Renoir) Gen3x16

For a better ther mal environment, ple ase connect a ch assi s fan to the motherboard’s
chassis fan connector (CHA_ FAN1/WP) when using multiple graphics c ards.

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25

2.5 Jumpers Setup

e illustration shows how jumpers are setup. When the jumper cap is placed on

the pins, the jumper is “Short”. If no jumper cap is placed on the pins, the jumper is

“Open”.

English

Clear CMOS Jumper

(CLRCMOS1)

(see p.7, No. 14)

CLRCMOS1 allows you to clear the data in CMOS. e data in CMOS includes

system setup information such as system password, date, time, and system setup

parameters. To clear and reset the system parameters to default setup, please

turn o the computer and unplug the power cord, then use a jumper cap to short

the pins on CLRCMOS1 for 3 seconds. Please remember to remove the jumper

cap aer clearing the CMOS. If you need to clear the CMOS when you just nish

updating the BIOS, you must boot up the system rst, and then shut it down

before you do the clear-CMOS action.

2-pin Jumper

Short: Clear CMOS

Open: Default

26

2.6 Onboard Headers and Connectors

Onboard headers and connectors are NOT jumpers. Do NOT place jumper caps over
these header s and connectors. Placing jumper caps over the headers and connectors
will cause permanent damage to the motherboard.

B550 Phantom Gaming-ITX/ax

System Panel Header

(9-pin PANEL1)

(see p.7, No. 11)

PWRBTN (Power Button):

Connec t to the power button on the chassi s front panel. You may congure the way
to turn o your system using the powe r button.

RESET (Reset Button):

Connec t to the reset button on the chassi s front panel. Press the reset button to
restar t the computer if the computer freezes and fails to perform a nor mal restart.

PLED (Syste m Power LED):

Connec t to the power status indicator on the chassis front panel. e LED i s on when
the system is ope rating. e LED keeps blinking when the system i s in S1/S3 sleep
state. e LED is o when the system is in S4 sleep state or powered o (S5).

HDLED (Ha rd Drive Activity LED):

Connec t to the hard drive ac tivity LED on the chassis front panel. e LED is on
when the hard drive i s reading or writing data.

e front panel de sign may dier by chassis. A front pane l module mainly consists
of power button , reset button, power LED, hard dr ive activity LED, speaker and etc.
When connecting your chassis front panel module to this head er, make sure the wire
assig nments and the pin assig nments are matched correctly.

GND

PWR BT N #

PLE D-

PLE D+

GND

RES ET#

GND

HDL ED -

HDL ED +

1

Connect the power

button, reset button and

system status indicator on

the chassis to this header

according to the pin

assignments below. Note

the positive and negative

pins before connecting

the cables.

Chassis Speaker Header

(4-pin SPEAKER1)

(see p.7, No. 16)

SPE AKE R

DUM MY

DUM MY

+5V

Please connect the chassis

speaker to this header.

1

English

27

Serial ATA3 Connectors

1

(SATA3_1_2:

see p.7, No. 8)

(SATA3_3_4:

see p.7, No. 9)

SATA3_1

SATA3_3

ese four SATA3

connectors support SATA

data cables for internal

SATA3_2

storage devices with up to

6.0 Gb/s data transfer rate.

SATA3_4

English

USB 2.0 Headers

(9-pin USB_1_2)

(see p.7, No. 12)

USB 3.2 Gen1 Header

(19-pin USB3_5_6)

(see p.7, No. 10)

Front Panel Type C USB

3.2 Gen2 Header

(20-pin USB32_TC_2)

(see p.7, No. 13)

Front Panel Audio Header

(9-pin HD_AUDIO1)

(see p.7, No. 17)

MIC 2_L

MIC 2_R

OUT 2_R

J_S ENS

Dumm y

IntA _PB_ D+

IntA _PB_ D-

IntA _PB_ SSTX +

IntA _PB_ SSTX -

IntA _PB_ SSRX +

IntA _PB_ SSRX -

USB Type-C Cable

E

OUT 2_L

GND

GND

Vbus

1

IntA _PA_D +

IntA _PA_D -

GND

IntA _PA_S STX+

IntA _PA_S STX-

GND

IntA _PA_S SRX+

IntA _PA_S SRX-

Vbus

PRE SEN CE #

MIC _RE T

OUT _R ET

ere is one header on

this motherboard. is

USB 2.0 header can

support two ports.

ere is one header on

this motherboard. is

USB 3.2 Gen1 header can

support two ports.

ere is one Front

Panel Type C USB 3.2

Gen2 Header on this

motherboard. is header

is used for connecting a

USB 3.2 Gen2 module for

additional USB 3.2 Gen2

ports.

is header is for

connecting audio devices

GND

to the front audio panel.

28

B550 Phantom Gaming-ITX/ax

4 3 2 1

1. High Denition Audio supports Jack Sensing, but the panel wire on the chassis
must support HDA to function correctly. Please follow the instructions in our
manual and chassis manual to install your system.

2. If you use an AC’97 audio panel, please install it to the front panel audio heade r by
the steps below:
A. Connect Mic_IN (MIC) to MIC2_ L.
B. Conne ct Audio_R (RIN) to OUT2_R and Audio_ L (LIN) to OUT2_ L.
C. Connect Ground (GND) to Ground (GND).
D. MIC_ RET and OUT_RET are for the HD audio panel only. You don’t need to
connec t them for the AC’97 audio panel.
E. To activate the front mic, go to the “FrontMic” Tab in the Realtek Control panel
and adju st “Recording Volume”.

Chassis Water Pump Fan

Connector

(4-pin CHA_FAN1/WP)

(see p.7, No. 15)

CPU Fan Connector

(4-pin CPU_FAN1)

(see p.7, No. 2)

CPU Water Pump Fan

Connector

(4-pin CPU_FAN2/WP)

(see p.7, No. 5)

GND

1

FAN_VOLTAGE

2
3

CHA _FA N_S PE ED

4

FAN _SP EED _C ONT ROL

4 3 2 1

+12 V

FAN_ SP EED _C ONT RO L

CPU _FA N_S PE ED

GND

FAN _VOLT AGE

CPU _F

AN_ SPEED

FAN_ SPEED _CONT ROL

GND

is motherboard

provides a 4-Pin water

cooling chassis fan

connectors. If you plan to

connect a 3-Pin

chassis

water cooler fan, please

connect it to Pin 1-3.

is motherboard pro-

vides a 4-Pin CPU fan

(Quiet Fan) connector.

If you plan to connect a

3-Pin CPU fan, please

connect it to Pin 1-3.

is motherboard

provides a 4-Pin water

cooling CPU fan

connector. If you plan

to connect a 3-Pin CPU

water cooler fan, please

connect it to Pin 1-3.

English

29

ATX Power Connector

1

(24-pin ATXPWR1)

(see p.7, No. 7)

12

24

is motherboard pro-

vides a 24-pin ATX power

connector. To use a 20-pin

ATX power supply, please

plug it along Pin 1 and Pin

1

13

13.

ATX 12V Power

Connector

(8-pin ATX12V1)

(see p.7, No. 1)

RGB LED Header

(4-pin RGB_LED1)

(see p.7, No. 4)

8 5

4

1

12V G R B

is motherboard

provides a 8-pin ATX 12V

power connector. To use a

4-pin ATX power supply,

please plug it along Pin 1

and Pin 5.

*Warning: Please make

sure that the power cable

connected is for the CPU

and not the graphics

card. Do not plug the

PCIe power cable to this

connector.

RGB header is used to connect

RGB LED extension cable which

allows users to choose from vari-

ous LED lighting eects.

Caution: Never install the RGB

LED cable in the wrong orienta-

tion; otherwise, the cable may

be damaged.

* Please refer to page 49 for

further instructions on this

header.

English

30

B550 Phantom Gaming-ITX/ax

Addressable LED Header

(3-pin ADDR_LED1)

(see p.7, No. 3)

1

VOU T

DO_ ADD R

GND

is header is used to connect

Addressable

LED extension cable

which allows users to choose

from various LED lighting

eects.

Caution: Never install the

Addressable LED cable in the

wrong orientation; otherwise,

the cable may be damaged.

* Please refer to page 50 for

further instructions on this

header.

31

English

2.7 M.2_SSD (NGFF) Module Installation Guide (M2_1)

The M.2, also known as the Next Generat ion Form Factor (NGFF), is a small size and

versatile card edge connector that aims to replace mPCIe and mSATA. e Hy per M.2

Socket (M2_1) supports M Key type 2280 M.2 PCI Express module up to Gen4x4 (64 Gb/s)

(with Matisse) or Gen3x4 (32 Gb/s) (with Renoir).

Installing the M.2_SSD (NGFF) Module

Step 1

Prepare a M.2_SSD (NGFF) module

and the screw.

Step 2

Depending on the PCB type and

length of your M.2_SSD (NGFF)

module, nd the corresponding nut

location to be used.

English

32

No. 1

Nut Location A

PCB Length 8cm

Module Type Type 2280

B550 Phantom Gaming-ITX/ax

1

2

1

Step 3

Before installing a M.2 (NGFF) SSD

module, please loosen the screws to

remove the M.2 heatsink.

*Please remove the protective lms

on the bottom side of the M.2

heatsink before you install a M.2

SSD module.

Step 4

Align and gently insert the M.2

(NGFF) SSD module into the M.2

slot. Please be aware that the M.2

(NGFF) SSD module only ts in one

A

orientation.

A

o

20

1

Step 5

2

Tighten the screw with a screwdriver

to secure the module and M.2

2

heatsink into place. Please do

not overtighten the screw as this

might damage the module and M.2

heatsink.

English

33

M.2_SSD (NGFF) Module Support List

Vendor Interface P/N

SanDisk PCIe SanDisk-SD6PP4M-128G( Gen2 x2)
Intel PCIe INTEL 6000P-SSDPEKKF256G7 (nvme)
Intel PCIe INTEL 6000P-SSDPEKKF512G7 (nvme)
Intel PCIe SSDPEKKF512G7 NVME / 512GB
Kingston PCIe Kingston SHPM2280P2 / 240G (Gen2 x4)
Samsung PCIe Samsung XP941-MZHPU512HCGL(Gen2x4)
Samsung PCIe SM951 (NVME) / 512GB
Samsung PCIe SM951 (MZHPV512HDGL) / 512GB
ADATA PCIe ASX8000NP-512GM-C / 512GB
ADATA PCIe ASX7000NP-512GT-C / 512GB
Kingston PCIe SKC1000/480G
Kingston PCIe SKC1000/960GB NVME
PLEXTOR PCIe PX-512M8PeG/ 512GB
WD PCIe WDS512G1X0C-00ENX0 (NVME) / 512GB

For the latest updates of M.2 _SSD (NFGG) module support list, please visit our website

for details: http://www.asrock.com

English

34

B550 Phantom Gaming-ITX/ax

2.8 M.2_SSD (NGFF) Module Installation Guide

The M.2, also known as the Next Generat ion Form Factor (NGFF), is a small size and

versatile card edge connector that aims to replace mPCIe and mSATA. e M.2 Socket

supports M Key ty pe 2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up

to Gen3 x4 (32 Gb/s).

Installing the M.2_SSD (NGFF) Module

Step 1

Prepare a M.2_SSD (NGFF) module

and the screw.

Step 2

Depending on the PCB type and

length of your M.2_SSD (NGFF)

module, nd the corresponding nut

location to be used.

No. 1

Nut Location A

PCB Length 8cm

Module Type Type 2280

English

35

Step 3

Align and gently insert the M.2

(NGFF) SSD module into the M.2

slot. Please be aware that the M.2

(NGFF) SSD module only ts in one

orientation.

A

English

A

o

20

Step 4

Tighten the screw with a screwdriver

to secure the module into place.

Please do not overtighten the screw

NUT1NUT2

as this might damage the module.

36

B550 Phantom Gaming-ITX/ax

M.2_SSD (NGFF) Module Support List

Vendor Interface P/N

SanDisk PCIe SanDisk-SD6PP4M-128G( Gen2 x2)
Intel PCIe INTEL 6000P-SSDPEKKF256G7 (nvme)
Intel PCIe INTEL 6000P-SSDPEKKF512G7 (nvme)
Intel PCIe SSDPEKKF512G7 NVME / 512GB
Intel SATA 540S-SSDSCKKW240H6 / 240GB
Kingston PCIe Kingston SHPM2280P2 / 240G (Gen2 x4)
Samsung PCIe Samsung XP941-MZHPU512HCGL(Gen2x4)
Samsung PCIe SM951 (NVME) / 512GB
Samsung PCIe SM951 (MZHPV512HDGL) / 512GB
ADATA SATA ADATA - AXNS381E-128GM-B
ADATA PCIe ASX8000NP-512GM-C / 512GB
ADATA PCIe ASX7000NP-512GT-C / 512GB
ADATA SATA ASU800NS38-512GT-C / 512GB
Crucial SATA Crucial-CT240M500SSD4-240GB
ezlink SATA ezlink P51B-80-120GB
Intel SATA INTEL 540S-SSDSCKKW240H6-240GB
Kingston SATA Kingston SM2280S3G2/120G - Win8.1
Kingston SATA Kingston-RBU-SNS8400S3 / 180GD
Kingston PCIe SKC1000/480G
Kingston PCIe SKC1000/960GB NVME
LITEON SATA LITEON LJH-256V2G-256GB (2260)
PLEXTOR SATA PLEXTOR PX-128M6G-2260-128GB
PLEXTOR SATA PLEXTOR PX-128M7VG-128GB
PLEXTOR PCIe PX-512M8PeG/ 512GB
SanDisk SATA SanDisk X400-SD8SN8U-128G
SanDisk SATA Sandisk Z400s-SD8SNAT-128G-1122
SanDisk SATA SanDisk-SD6SN1M-128G
Transcend SATA Transcend TS256GMTS800-256GB
Transcend SATA TS512GMTS800 / 512GB
V-Color SATA V-Color 120G
V-Color SATA V-Color 240G
WD SATA WD GREEN WDS240G1G0B-00RC30
WD PCIe WDS512G1X0C-00ENX0 (NVME) / 512GB

For the latest updates of M.2 _SSD (NFGG) module support list, please visit our website

for details: http://www.asrock.com

English

37

Chapter 3 Software and Utilities Operation

3.1 Installing Drivers

e Support CD that comes with the motherboard contains necessary drivers and

useful utilities that enhance the motherboard’s features.

Running The Support CD

To begin using the support CD, insert the CD into your CD-ROM drive. e CD

automatically displays the Main Menu if “AUTORUN” is enabled in your computer.

If the Main Menu does not appear automatically, locate and double click on the le

“ASRSETUP.EXE” in the Support CD to display the menu.

Drivers Menu

e drivers compatible to your system will be auto-detected and listed on the

support CD driver page. Please click Instal l All or follow the order from top to

bottom to install those required drivers. erefore, the drivers you install can work

properly.

Utilities Menu

e Utilities Menu shows the application soware that the motherboard supports.

Click on a specic item then follow the installation wizard to insta ll it.

English

38

B550 Phantom Gaming-ITX/ax

3.2 ASRock Motherboard Utility (Phantom Gaming Tuning)

ASRock Motherboard Utilit y (Phantom Gaming Tuning) is ASRock’s multi pur-

pose soware suite with a new interface, more new features and improved utilities.

3.2.1 Installing ASRock Motherboard Utility (Phantom
Gaming Tuning)

ASRock Motherboard Utilit y (Phantom Gaming Tuning) can be downloaded from

ASRock Live Update & APP Shop. Aer the installation, you will nd the icon “AS-

Rock Motherboard Utility (Phantom Gaming Tuning)“ on your desktop. Double-

click the “ASRock Motherboard Utility (Phantom Gaming Tuning)“ icon,

ASRock Motherboard Utilit y (Phantom Gaming Tuning) main menu will pop up.

3.2.2 Using ASRock Motherboard Utility (Phantom Gam­ing Tuning)

ere are ve sections in ASRock Motherboard Utility (Phantom Gaming Tuning)

main menu: Operation Mode, OC Tweaker, System Info, FAN-Tastic Tuning and

Settings.

Operation Mode

Choose an operation mode for your computer.

39

English

OC Tweaker

Congurations for overclocking the system.

System Info

View information about the system.

*e System Browser tab may not appear for certain models.

English

40

B550 Phantom Gaming-ITX/ax

FAN-Tastic Tuning

Congure up to ve dierent fan speeds using the graph. e fans will automatically shi

to the next speed level when the assigned temperature is met.

Settings

Congure ASRock ASRock Motherboard Utility (Phantom Gaming Tuning).

Click to select "Auto run at Windows Startup" if you want ASRock Motherboard

Utility (Phantom Gaming Tuning) to be launched when you start up the Windows

operating system.

English

41

3.3 ASRock Live Update & APP Shop

e ASRock Live Update & APP Shop is an online store for purchasing and

downloading soware applications for your ASRock computer. You can quick ly and

easily insta ll various apps and support utilities. With ASRock Live Update & APP

Shop, you can optimize your system and keep your motherboard up to date simply

with a few clicks.

Double-click on your desktop to access ASRock Live Update & APP Shop
utility.

*You need to be connected to the Internet to download apps f rom the ASRock Live Update & APP Shop.

3.3.1 UI Overview

Category Panel

Hot News

English

42

Information Panel

Category Panel: e category panel contains several category tabs or buttons that

when selected the information panel below displays the relative information.

Information Panel: e information panel in the center displays data about the

currently selected category and allows users to perform job-related tasks.

Hot News: e hot news section displays the various latest news. Click on the image

to visit the website of the selected news and know more.

B550 Phantom Gaming-ITX/ax

3.3.2 Apps

When the "Apps" tab is selected, you will see all the available apps on screen for you

to download.

Installing an App

Step 1

Find the app you want to install.

e most recommended app appears on the le side of the screen. e other various

apps are shown on the right. Please scroll up and down to see more apps listed.

You can check the price of the app and whether you have already intalled it or not.

- e red icon displays the price or "Free" if the app is free of charge.

- e green "Installed" icon means the app is installed on your computer.

Step 2

Click on the app icon to see more details about the selected app.

English

43

Step 3

If you want to install the app, click on the red icon to start downloading.

Step 4

When installation completes, you can nd the green "Installed " icon appears on the

upper right corner.

English

44

To uninstall it, simply click on the trash can icon .
*e trash icon may not appear for certain apps.

B550 Phantom Gaming-ITX/ax

Upgrading an App

You can only upgrade the apps you have already installed. When there is an

available new version for your app, you will nd the mark of "New Version"

appears below the installed app icon.

Step 1

Click on the app icon to see more details.

Step 2

Click on the yellow icon to start upgrading.

English

45

3.3.3 BIOS & Drivers

Installing BIOS or Drivers

When the "BIOS & Drivers" tab is selected, you will see a list of recommended or

critical updates for the BIOS or drivers. Please update them all soon.

Step 1

Please check the item information before update. Click on to see more details.

Step 2

English

46

Click to select one or more items you want to update.

Step 3

Click Update to start the update process.

B550 Phantom Gaming-ITX/ax

3.3.4 Setting

In the "Setting" page, you can change the language, select the server location, and

determine if you want to automatically run the ASRock Live Update & APP Shop

on Windows startup.

47

English

3.4 Nahimic Audio

Nahimic audio soware provides an incredible high denition sound technology which

boosts the audio and voice performance of your system. Nahimic Audio interface is

composed of four tabs: Audio, Microphone, Sound Tracker and Settings.

ere are four functions in Nahimic audio :

No. Function Description

From this tab, you can mute the current audio device, choose

Audio

1

between four factory audio proles, turn all audio eects
on/o, restores the current prole to its default settings and
access Surround Sound and various features.

English

48

Microphone

2

3

4

Sound

Tracker

Settings

From this tab, you can mute the current mic device, choose
between two factory mic proles, turn/o all microphone
eects, restore the current prole to its default settings, and
access Static Noise Suppression and various features.

e Sound Tracker provides a visual indication localizing
the sources of the sounds while in a game. ese are
represented by dynamic segments pointing the direction
of the sounds: the more opaque they are, the stronger the
sounds are.

From this tab, you can access all settings and information of
the soware.

B550 Phantom Gaming-ITX/ax

3.5 ASRock Polychrome RGB

ASRock Polychrome RGB is a lighting control utility specically designed for unique indi-

viduals with sophisticated tastes to build their own stylish colorful lighting system. Simply

by connecting the LED strip, you can customize various lighting schemes and patterns,

including Static, Breathing, Strobe, Cycling, Music, Wave and more.

Connecting the LED Strip

Connect your RGB LED strips to the

motherboard.

RGB LED Header (RGB_LED1)

1

G

V

2

1

RGB_LED1

1

12V G R B

on the

B

R

1. Never in stall the RGB LED cable in the w rong orientation; otherwi se, the cable
may be damaged.

2. Before installing or removing your RGB LED cable, pl ease power o your system
and unplug the powe r cord from the power supply. Failure to do so m ay cause dam­ages to motherboard components.

1. Please note that the RGB LED strips do not come with the package.

2. e RGB LED header supports standard 5050 RGB LED strip (12V/G/R/B), with a
maximum power rating of 3A (12V) and length within 2 meters.

English

49

Connecting the Addressable RGB LED Strip

Connect your Addressable RGB LED strip to the Addressable LED Header (ADDR_LED1)

on the motherboard.

1

ADDR_LED1

1

GND

DO_ ADD R

VOU T

1. Never in stall the RGB LED cable in the w rong orientation; otherwi se, the cable
may be damaged.

2. Before installing or removing your RGB LED cable, pl ease power o your system
and unplug the powe r cord from the power supply. Failure to do so m ay cause dam­ages to motherboard components.

English

50

1. Please note that the RGB LED strips do not come with the package.

2. e RGB LED header supports WS2812B addressable RGB LED strip (5V/Data/
GND), with a ma ximum power rating of 3A (5V) and length w ithin 2 meters.

B550 Phantom Gaming-ITX/ax

ASRock Polychrome RGB Utility

Now you can adjust the RGB LED color through the ASRock Polychrome RGB utility.

Download this utility from the ASRock Live Update & APP Shop and start coloring your

PC style your way!

Drag the tab to customize your

preference.

Toggle on/o the

RGB LED switch

Sync RGB LED eects

for all LED regions of

the motherboard

Select a RGB LED light eect

from the drop-down menu.

51

English

Chapter 4 UEFI SETUP UTILITY

4.1 Introduction

is section explains how to use the UEFI SETUP UTILITY to congure your

system. You may run the UEFI SETUP UTILITY by pressing <F2> or <Del> right

aer you power on the computer, other wise, the Power-On-Self-Test (POST) will

continue with its test routines. If you wish to enter the UEFI SETUP UTILITY aer

POST, restart the system by pressing <Ctl> + <Alt> + <Delete>, or by pressing the

reset button on the system chassis. You may also restart by turning the system o

and then back on.

Becau se the UEFI soware is constantly being upd ated, the following UEFI setup
screens and de scriptions are for reference purpose only, and they may not exactly
match what you see on your scre en.

4.1.1 UEFI Menu Bar

e top of the screen has a menu bar with the following selections:

English

52

Main

OC Tweaker

Advanced

Tool

H/W Monitor

Security

Boot

Exit

For setting system time/date information

For overclocking congurations

For advanced system congurations

Useful tools

Displays current hardware status

For security settings

For conguring boot settings and boot priority

Exit the current screen or the UEFI Setup Utility

B550 Phantom Gaming-ITX/ax

4.1.2 Navigation Keys

Use < > key or < > key to choose among the selections on the menu bar, and

use < > key or < > key to move the cursor up or down to select items, then

press <Enter> to get into the sub screen. You can also use the mouse to click your

required item.

Please check the following table for the descriptions of each navigation key.

Navigation Key(s) Description

+ / -

<Tab>

<PGUP>

<PGDN>

<HOME>

<END>

<F1>

<F7>

<F9>

<F10>

<F12>

<ESC>

To change option for the selected items

Switch to next function

Go to the previous page

Go to the next page

Go to the top of the screen

Go to the bottom of the screen

To display the General Help Screen

Discard changes and exit the SETUP UTILITY

Load optimal default values for all the settings

Save changes and exit the SETUP UTILITY

Print screen

Jump to the Exit Screen or exit the current screen

53

English

4.2 Main Screen

When you enter the UEFI SETUP UTILITY, the Main screen will appear and

display the system overview.

English

54

4.3 OC Tweaker Screen

In the OC Tweaker screen, you can set up overclocking features.

B550 Phantom Gaming-ITX/ax

Becau se the UEFI soware is constantly being upd ated, the following UEFI setup
screens and de scriptions are for reference purpose only, and they may not exactly
match what you see on your scre en.

Overclock Mode(Bus Speed)

Select the overclock mode. Warning! When overclocking also the PCIe, PCI, SATA and

USB busses will be overcloked which may cause instability or failure. Please install an

operating system and the drivers required before overclocking, or else your HDD's may be

undetectable. Overclocking is not supported if the monitor is connected via the onboard

D-Bus/VGA connector.

CPU Frequency and Voltage(VID) Change

If this item is set to [Manual], the multiplier and voltage will be set based on user

selection. Final result is depending on the CPU's capability.

CPU Core (Per CCX)

CPU Voltage

Species a custom CPU core voltage (mV), Should be combined with a custom CPU

core frequency. Power saving features for idle cores (e.g. cc6 sleep) remain active.

English

55

CCD0

CCX0 Frequency (MHz)

Use this item to adjust CCX0 Frequency.

CCX1 Frequency (MHz)

Use this item to adjust CCX1 Frequency.

CCD1

CCX0 Frequency (MHz)

Use this item to adjust CCX0 Frequency.

CCX1 Frequency (MHz)

Use this item to adjust CCX1 Frequency.

SoC/Uncore OC Voltage(VID)

Specify the SoC/Uncore voltage (VDD_SOC) in mV to support memory and Innity Fabric

overclocking. VDD_SOC also determines the GPU voltage on processors with integrated

graphics. “SoC/Uncore OC Mode” needs to be enabled to force this voltage.

CLD0 VDDP Voltage Control

AMD Overclocking Setup VDDP is a voltage for the DDR4 bus signaling (PHY), and it is

derived from your DRAM Voltage (VDDIO_Mem). As a result, VDDP voltage in mV can

approach but not exceed your DRAM Voltage.

English

56

CLD0 VDDG CCD Voltage Control

AMD Overclocking Setup VDDG CCD represents voltage for the data portion of the Innity

Fabric. It is derived from the CPU SoC/Uncore Voltage (VDD_SOC). VDDG can approach

but not exceed VDD_SOC.

CLD0 VDDG IOD Voltage Control

AMD Overclocking Setup VDDG IOD represents voltage for the data portion of the Innity

Fabric. It is derived from the CPU SoC/Uncore Voltage (VDD_SOC). VDDG can approach

but not exceed VDD_SOC.

DRAM Information

DRAM Frequency

If [Auto] is selected, the motherboard will detect the memory module(s) inserted and assign

B550 Phantom Gaming-ITX/ax

the appropriate frequency automatically. Setting DRAM Frequency can adjust DRAM

Timing.

DRAM Voltage

Congure the voltage for the DRAM Voltage.

Innity Fabric Frequency and Dividers

AMD Overclocking Setup Set Innity Fabric frequency (FCLK). Auto: FCLK = MCLK.

Manual: FCLK must be less than or equal to MCLK for best performance in most cases.

Latency penalties are incurred if FCLK and MCLK are mismatched, but suciently high

MCLK can negate or overcome this penalty.

DRAM Timing Conguration

External Voltage Settings and Load-line Calibration

Voltage Mode

[OC]

If this option is selected, there is larger range voltage for overclocking.

[Normal]

If this option is selected, there is smaller range voltage for normal system.

CPU Core/Cache Voltage

Input voltage for the processor by the external voltage refulator.

CPU Core/Cache Load-Line Calibration

CPU Core/Cache Load-Line Calibration helps prevent CPU voltage droop when the system

is under heavy loading.

CPU VDDCR_SOC Voltage

Congure the voltage for the VID-requested VDDCR_SOC supply level.

CPU VDDCR_SOC Load-Line Calibration

CPU VDDCR_SOC Load-Line Calibration helps prevent VDDCR_SOC voltage droop when

the system is under heavy loading.U

VPPM

Congure the voltage for the VPPM.

2.50V Voltage

Use this to select 2.50V Voltage. e default value is [Auto].

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DRAM Voltage

Use this to select DRAM Voltage. e default value is [Auto].

CPU VDD 1.8 Voltage

Congure the voltage for the CPU VDD 1.8 PROM.

VDDP

Congure the voltage for the VDDP.

Chipset 1.05V Voltage

Use this to select 1.05V Voltage. e default value is [Auto].

Save User Default

Type a prole name and press enter to save your settings as user default.

Load User Default

Load previously saved user defaults.

Save User UEFI Setup Prole to Disk

Save current UEFI settings as an user default prole to disk.

Load User UEFI Setup Prole to Disk

Load previously saved user defaults from the disk.

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B550 Phantom Gaming-ITX/ax

4.4 Advanced Screen

In this section, you may set the congurations for the following items: CPU

Conguration, Onboard Devices Conguration, Storage Conguration, ACPI

Conguration, Trusted Computing , AMD PBS, AMD Overclocking and AMD

CBS.

Setting wrong values in this sec tion may cause the system to malfunction.

UEFI Conguration

Active Page on Entry

Select the default page when entering the UEFI setup utility.

Full HD UEFI

When [Auto] is selected, the resolution will be set to 1920 x 1080 if the monitor

supports Full HD resolution. If the monitor does not support Full HD resolution,

then the resolution will be set to 1024 x 768. When [Disable] is selected, the

resolution will be set to 1024 x 768 directly.

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4.4.1 CPU Conguration

PSS Support

Use this to enable or disable the generation of ACPI_PPC, _PSS, and _PCT objects.

NX Mode

Use this to enable or disable NX mode.

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SVM Mode

When this is set to [Enabled], a VMM (Virtual Machine Architecture)can utilize the

additional hardware capabilities provided by AMD-V. e default value is [Enabled].

Coniguration options: [Enabled] and [Disabled].

SMT Mode

is item can be used to disable symmetric multithreading. To re-enable SMT, a

power cycle is needed aer selecting [Auto].

Warning: S3 is not supported on systems where SMT is disabled.

AMD fTPM Switch

Use this to enable or disable AMD CPU fTPM.

B550 Phantom Gaming-ITX/ax

4.4.2 Onboard Devices Conguration

Turn On Onboard LED in S5

Turn on/o the LED in the ACPI S5 state.

SR-IOV Support

Enable/disable the SR-IOV (Single Root IO Virtualization Support) if the system

has SR-IOV capable PCIe devices.

UMA Frame buer Size

is item allows you to set the size of the UMA frame buer.

(Only for processor with integrated graphics)

Gnb Hd Audio

Enable/disable onboard HD audio. Set to Auto to enable onboard HD audio and

automatically disable it when a sound card is installed.

Front Panel

Enable/disable front panel HD audio.

Restore on AC/Power Loss

Select the power state aer a power failure. If [Power O] is selected, the power will

remain o when the power recovers. If [Power On] is selected, the system will start

to boot up when the power recovers.

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WAN Radio

Congure the WiFi module's connectivity.

BT On/O

Enable/disable the bluetooth.

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4.4.3 Storage Conguration

SATA Mode

AHCI: Supports new features that improve performance.

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RAID: Combine multiple disk drives into a logical unit.

SATA Hot Plug

Enable/disable the SATA Hot Plug function.

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4.4.4 ACPI Conguration

Suspend to RAM

It is recommended to select auto for ACPI S3 power saving.

Deep Sleep

Congure deep sleep mode for power saving when the computer is shut down. We

recommend disabling Deep Sleep for better system compatibility and stability.

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PCIE Devices Power On

Allow the system to be waked up by a PCIE device and enable wake on LAN.

RTC Alarm Power On

Allow the system to be waked up by the rea l time clock alarm. Set it to By OS to let

it be handled by your operating system.

4.4.5 Trusted Computing

Security Device Support

Enable or disable BIOS support for security device.

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English

4.4.6 AMD PBS

e AMD PBS menu accesses AMD specic features.

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B550 Phantom Gaming-ITX/ax

4.4.7 AMD Overclocking

e AMD Overclocking menu accesses options for conguring CPU frequency and

voltage.

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4.4.8 AMD CBS

e AMD CBS menu accesses AMD specic features.

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B550 Phantom Gaming-ITX/ax

4.5 Tools

Easy RAID Installer

Easy R AID Installer helps you to copy the R AID driver from the support CD to

your USB storage device. Aer copying the drivers please change the SATA mode to

RAID, then you can start installing the operating system in RAID mode.

SSD Secure Erase Tool

All the SSD's listed that supports Secure Erase function.

NVME Sanitization Tool

Aer you Sanitize SSD, all user data will be permanently destroyed on the SSD and

cannot be recovered.

Instant Flash

Save UEFI les in your USB storage device and run Instant Flash to update your

UEFI.

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4.6 Hardware Health Event Monitoring Screen

is section allows you to monitor the status of the hardware on your system,

including the parameters of the CPU temperature, motherboard temperature, fan

speed and voltage.

CPU FAN1 Setting

Select a fan mode for CPU Fan 1, or choose Customize to set 5 CPU temperatures

and assign a respective fan speed for each temperature.

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CPU FAN1 Temp Source

Select a fan temperature source for CPU Fan 1.

FAN Conguration

CPU_FAN2/WP Switch

Select CPU Water Pump mode.

CPU Fan 2 Control Mode

Select PWM mode or DC mode for CPU Fan 2.

CPU Fan 2 Setting

Select a fan mode for CPU Fan 2, or choose Customize to set 5 CPU temperatures

and assign a respective fan speed for each temperature.

B550 Phantom Gaming-ITX/ax

CPU Fan 2 Temp Source

Select a fan temperature source for CPU Fan 2.

CHA_FAN1/WP Switch

Select CHA_FAN1 or Water Pump mode.

Chassis Fan 1 Control Mode

Select PWM mode or DC mode for Chassis Fan 1.

Chassis Fan 1 Setting

Select a fan mode for Chassis Fan 1, or choose Customize to set 5 CPU temperatures

and assign a respective fan speed for each temperature.

Chassis Fan 1 Temp Source

Select a fan temperature source for Chassis Fan 1.

Fan-Tastic

Select a fan mode for Fan, or choose Customize to set 5 CPU temperatures and assign a

respective fan speed for each temperature.

FanTuning

Detect the lowest fan speed in the system. Iy may ta ke 3-5 minutes to complete.

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4.7 Security Screen

In this section you may set or change the supervisor/user password for the system.

You may also clear the user password.

Supervisor Password

Set or change the password for the administrator account. Only the administrator

has authority to change the settings in the UEFI Setup Utility. Leave it blank and

press enter to remove the password.

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User Password

Set or change the password for the user account. Users are unable to change the

settings in the UEFI Setup Utility. Leave it blank and press enter to remove the

password.

Secure Boot

Enable to support Secure Boot.

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4.8 Boot Screen

is section displays the available devices on your system for you to congure the

boot settings and the boot priority.

Boot From Onboard LAN

Allow the system to be waked up by the onboard LAN.

Setup Prompt Timeout

Congure the number of seconds to wait for the setup hot key.

Fast Boot

Fast Boot minimizes your computer's boot time. In fast mode you may not boot

from an USB storage device.

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CSM (Compatibility Support Module)

CSM

Enable to launch the Compatibility Support Module. Please do not disable unless

you’re running a WHCK test.

Launch PXE OpROM Policy

Select UEFI only to run those that support UEFI option ROM only. Select Legacy

only to run those that support legacy option ROM only. Select Do not launch to not

execute both legacy and UEFI option ROM.

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Launch Storage OpROM Policy

Select UEFI only to run those that support UEFI option ROM only. Select Legacy

only to run those that support legacy option ROM only. Select Do not launch to not

execute both legacy and UEFI option ROM.

Bootup Num-Lock

Select whether Num Lock should be turned on or o when the system boots up.

Full Screen Logo

Enable to display the boot logo or disable to show normal POST messages.

B550 Phantom Gaming-ITX/ax

AddOn ROM Display

Enable AddOn ROM Display to see the AddOn ROM messages or congure the AddOn

ROM if you've enabled Full Screen Logo. Disable for faster boot speed.

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English

4.9 Exit Screen

Save Changes and Exit

When you select this option the following message, “Save conguration changes

and exit setup?” will pop out. Select [OK] to save changes and exit the UEFI SETUP

UTILITY.

Discard Changes and Exit

When you select this option the following message, “Discard changes and exit

setup?” will pop out. Select [OK] to exit the UEFI SETUP UTILITY without saving

any changes.

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Discard Changes

When you select this option the following message, “Discard changes?” will pop

out. Select [OK] to discard all changes.

Load UEFI BIOS Defaults

Load UEFI BIOS Default values for all the setup questions. e F9 key can be used

for this operation.

Contact Information

If you need to contact ASRock or want to know more about ASRock, you’re welcome

to visit ASRock’s website at http://ww w.asrock.com; or you may contact your dealer

for further information. For technical questions, please submit a support request

form at http://www.asrock.com/support/tsd.asp

ASRock Incorporation

2F., No.37, Sec. 2, Jhongyang S. Rd., Beitou District,

Taipei City 112, Taiwan (R.O.C.)

ASRock EUROPE B.V.

Bijsterhuizen 11-11

6546 AR Nijmegen

e Netherlands

Phone: [phone]

Fax: [phone]

ASRock America, Inc.

13848 Magnolia Ave, Chino, CA91710

U.S.A.

Phone: [phone]

Fax: [phone]

DECLARATION OF CONFORMITY

Responsible Party Name:

Phone/Fax No:

hereby declares that the product

Product Name : Motherboard

Per FCC Part 2 Section 2.1077(a)

ASRock Incorporation

Address:

13848 Magnolia Ave, Chino, CA91710

[phone]/[phone]

Model Number :

Conforms to the following specications:

FCC Part 15, Subpart B, Unintentional Radiators

Supplementary Information:

B550 Phantom Gaming-ITX/ax

is device complies with part 15 of the FCC Rules. Operation is subject to the

following two conditions: (1) is device may not cause harmful interference,

and (2) this device must accept any interference received, including interference

that may cause undesired operation.

James

Representative Person’s Name:

Signature :

Date :

May 12, 2017

EU Declaration of Conformity

EMC —Directive 2014/30/EU (from April 20th, 2016)

For the following equipment:

Motherboard

(Product Name)

B550 Phantom Gaming-ITX/ax / ASRock

(Model Designation / Trade Name)

ASRock Incorporation

(Manufacturer Name)

2F., No.37, Sec. 2, Jhongyang S. Rd., Beitou District, Taipei City 112, Taiwan (R.O.C.)

(Manufacturer Address)

ڛ

☐ EN 55022:2010/AC:2011 Class B EN 55024:2010/A1:2015

ڛ EN 55032:2012+AC:2013 Class B ڛ
ڛ EN 61000-3-2:2014

ڛ

RED—Directive 2014/53/EU

EN 300 328 V2.1.1 EN 301 489-17 V3.1.1

☐
☐

EN 301 893 V2.1.1 ☐ EN 301 489-3 V2.1.1

☐ EN 300 220 V3.1.1

☐

LVD —Directive 2014/35/EU (from April 20th, 2016)

☐

EN 60950-1 : 2011+ A2: 2013 ☐ EN 60950-1 : 2006/A12: 2011

ڛ RoHS — Directive 2011/65/EU
ڛ CE marking

(EU conformity marking)

ASRock EUROPE B.V.

(Company Name)

Bijsterhuizen 1111 6546 AR Nijmegen e Netherlands

(Company Address)

Person responsible for making this declaration:

ڛ

EN 61000-3-3:2013

ڛ

(Name, Surname)

A.V.P

(Position / Title)

June 12, 2020

(Date)

P/N: 15G062237000AK V1.0