ASROCK B450M/ac Manuel utilisateur

Version 1.0

Published May 2019

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 www.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 : +886-2-28965588 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.

English

B450M/ac

Motherboard Layout

19 13

BIOS

ROM

ATXPWR1

Super

I/O

CLRCMOS1

PCIE1

USB_3_4

HD_AUDIO1

CPU_FAN1

Top:

LIN E IN

Cen te r:

FRO NT

Bot to m:

MIC I N

RJ-45 LAN

USB 2.0

T: USB1

B: USB2

SOCKETAM4

CMOS

Battery

ATX12V1

M2_1

Ultra M.2

PCIe Gen3 x4

USB 3_ 5_ 6

CHA_FAN1

CHA_FAN2

HDLED RESET

PLED PWRBTN

PANEL1

RoHS

SPK_PLED1

DDR4_A1 (64 bit, 288 -pin mod ule)

DDR4_A2 (64 bit, 288 -pin mod ule)

DDR4_B1 (64 bit, 288 -pin module)

DDR4_B2 (64 bit, 288 -pin mod ule)

PCIE2

AMD

Promontory

B450

USB 3.2 Gen1

T: USB1

B: USB2

USB 3.2 Gen1

T: USB3

B: USB4

AMD_FAN_LED1

USB_ 7

M2_1_CT3M2_1_CT2M2_1_CT1

USB_5_6

SATA3 _3

SATA3 _4

SATA3 _1

SATA3 _2

HDMI1

M2_WIFI

ADDR_LED1

RGB_HEADER1

B450M/ac

CI1

English

No. Description

1 ATX 12V Power Connector (ATX12V1)

2 CPU Fan Connector (CPU_FAN1)

3 2 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1)

4 2 x 288-pin DDR4 DIMM Slots (DDR4_A2, DDR4_B2)

5 AMD Fan LED Header (AMD_FAN_LED1)

6 ATX Power Connector (ATXPWR1)

7 USB 3.2 Gen1 Header (USB3_5_6)

8 AMD LED Fan USB Header (USB_7)

9 SATA3 Connector (SATA3_3)

10 SATA3 Connector (SATA3_4)

11 SATA3 Connector (SATA3_2)

12 SATA3 Connector (SATA3_1)

13 System Panel Header (PANEL1)

14 Power LED and Speaker Header (SPK_PLED1)

15 Chassis Intrusion Header (CI1)

16 Chassis Fan Connector (CHA_FAN2)

17 USB 2.0 Header (USB_3_4)

18 USB 2.0 Header (USB_5_6)

19 Clear CMOS Jumper (CLRCMOS1)

20 RGB LED Header (RGB_HEADER1)

21 Addressable LED Header (ADDR_LED1)

22 Front Panel Audio Header (HD_AUDIO1)

23 Chassis/Water Pump Fan Connector (CHA_FAN1)

English

B450M/ac

I/O Panel

No. Description No. Description

1 LAN RJ-45 Port* 6 USB 3.2 Gen1 Ports (USB3_1_2)

2 Line In (Light Blue)** 7 HDMI Port

3 Front Speaker (Lime)** 8 USB 2.0 Ports (USB_1_2)

4 Microphone (Pink)** 9 Antenna Ports

5USB 3.2 Gen1 Ports (USB3_3_4)

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

Activity / Link LED Speed LED

Status Description Status Description

O No Link O 10Mbps connection

Blinking Data Activity Orange 100Mbps connection

On Link Green 1Gbps connection

ACT/LINK LED

SPEED LED

LAN Port

6 589 7

English

Chapter 1 Introduction

ank you for purchasing ASRock B450M/ac 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.

1.1 Package Contents

•ASRock B450M/ac Motherboard (Micro ATX Form Factor)

•ASRock B450M/ac Quick Installation Guide

•ASRock B450M/ac Support CD

•1 x I/O Panel Shield

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

•2 x ASRock WiFi 2.4/5 GHz Antennas (Optional)

•1 x Screw for M.2 Socket (Optional)

Because the motherboard specications and the BIOS soware might be updated, the

content of this manual will be subject to change without notice. In case any modica-

tions of this manual occur, the updated version will be available on ASRock’s website

without further notice. If you require technical support related to this motherboard,

please visit our website for specic information about the model you are using. You

may nd the latest VGA cards and CPU support list on ASRock’s website as well.

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

English

B450M/ac

1.2 Specications

Platform •Micro ATX Form Factor

•2oz Copper PCB

•Solid Capacitor design

CPU •AMD AM4 Socket

•Digi Power design

•9 Power Phase design

Chipset •AMD Promontory B450

Memory •Dual Channel DDR4 Memory Technology

•4 x DDR4 DIMM Slots

•AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4

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

buered memory*

•AMD Ryzen series CPUs (Summit Ridge) support DDR4

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

buered memory*

•AMD Ryzen series CPUs (Raven Ridge) support DDR4

3200+(OC)/2933/2667/2400/2133 non-ECC, un-buered

memory*

* For Ryzen Series CPUs (Raven Ridge), ECC is only supported

with PRO CPUs.

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

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

* Please refer to page 22for DDR4 UDIMM maximum frequency

support.

•Max. capacity of system memory: 64GB

•15μ Gold Contact in DIMM Slots

Expansion

Slot

AMD Ryzen series CPUs (Summit Ridge and Pinnacle Ridge)

•1 x PCI Express 3.0 x16 Slot (PCIE1: x16 mode)*

•1 x PCI Express 2.0 x16 Slot (PCIE2: x4 mode)

AMD Ryzen series CPUs (Raven Ridge)

•1 x PCI Express 3.0 x16 Slot (PCIE1: x8 mode)*

•1 x PCI Express 2.0 x16 Slot (PCIE2: x4 mode)

English

AMD Athlon series CPUs

•1 x PCI Express 3.0 x16 Slot (PCIE1: x4 mode)*

•1 x PCI Express 2.0 x16 Slot (PCIE2: x4 mode)

* Supports NVMe SSD as boot disks

•Supports AMD Quad CrossFireXTM and CrossFireXTM

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

802.11ac module (on the rear I/O)

Graphics •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.

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

(4096x2160) @ 24Hz / (3840x2160) @ 30Hz

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

HBR (High Bit Rate Audio) with HDMI 1.4 Port (Compliant

HDMI monitor is required)

•Supports HDCP 1.4 with HDMI 1.4 Port

•Supports 4K Ultra HD (UHD) playback with HDMI 1.4 Port

Audio •7.1 CH HD Audio with Content Protection (Realtek ALC892

Audio Codec)

•Premium Blu-ray Audio support

•Supports Surge Protection

•ELNA Audio Caps

LAN •PCIE x1 Gigabit LAN 10/100/1000 Mb/s

•Realtek RTL8111H

•Supports Wake-On-LAN

•Supports Lightning/ESD Protection

•Supports Energy Ecient Ethernet 802.3az

•Supports PXE

English

B450M/ac

Wireless

LAN

•Intel® 802.11ac WiFi Module

•Supports IEEE 802.11a/b/g/n/ac

•Supports Dual-Band (2.4/5 GHz)

•Supports high speed wireless connections up to 433Mbps

•Supports Bluetooth 4.2 / 3.0 + High speed class II

Rear Panel

I/O

•2 x Antenna Ports

•1 x HDMI Port

•2 x USB 2.0 Ports (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

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 Ultra M.2 Socket (M2_1), supports M Key type

2242/2260/2280 M.2 PCI Express module up to Gen3 x4 (32

Gb/s) (with Summit Ridge, Raven Ridge and Pinnacle Ridge)

or Gen3 x2 (16 Gb/s) (with Athlon 2xxGE series APU)*

* Supports NVMe SSD as boot disks

* Supports ASRock U.2 Kit

Connector •1 x Chassis Intrusion Header

•1 x Power LED and Speaker Header

•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 AMD Fan LED Header

*e AMD Fan LED Header supports LED strips of maximum

load of 3A (36W) and length up to 2.5M.

•1 x CPU Fan Connector (4-pin)

* e CPU Fan Connector supports the CPU fan of maximum

1A (12W) fan power.

English

•1 x Chassis Fan Connector (3-pin)

* e Chassis Fan Connector supports the chassis fan of

maximum 1A (12W) fan power.

•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.

* CHA_FAN1 can auto detect if 3-pin or 4-pin fan is in use.

•1 x 24 pin ATX Power Connector

•1 x 8 pin 12V Power Connector

•1 x Front Panel Audio Connector

•1 x AMD LED Fan USB Header

•2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD

Protection)

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

(Supports ESD Protection)

BIOS

Feature

•AMI UEFI Legal BIOS with multilingual GUI support

•Supports “Plug and Play”

•ACPI 5.1 compliance wake up events

•Supports jumperfree

•SMBIOS 2.3 support

•DRAM Voltage multi-adjustment

Hardware

Monitor

•Temperature Sensing: CPU, Chassis, Chassis/Water Pump

Fans

•Fan Tachometer: CPU, Chassis, Chassis/Water Pump Fans

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

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

•Fan Multi-Speed Control: CPU, Chassis, Chassis/Water

Pump Fans

•CASE OPEN detection

•Voltage monitoring: +12V, +5V, +3.3V, Vcore

OS •Microso® Windows® 10 64-bit

Certica-

tions

•FCC, CE

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

Ce manuel convient aux modèles suivants

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