ASROCK B450M Steel Legend User Manual (English)

To Next Page

Version 1.1

Published November 2020

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

Need help?

Do you have a question about the ASROCK B450M Steel Legend and is the answer not in the manual?

ASROCK B450M Steel Legend Specifications

General

Processor socket	Socket AM4
Processor manufacturer	AMD
Compatible processor series	AMD A
Maximum number of SMP processors	1
Audio chip	Realtek ALC892 / Realtek ALC897
Certification	FCC, CE, ErP/EuP
Component for	PC
Power source type	ATX
Motherboard chipset	AMD B450
PC health monitoring	CPU, FAN, Temperature, Voltage
Audio output channels	7.1 channels
Motherboard form factor	micro ATX
Windows operating systems supported	Windows 10 x64, Windows 11 x64
Non-ECC	Yes
Memory channels	Dual-channel
Memory slots type	DIMM
Number of memory slots	4
Supported memory types	DDR4-SDRAM
Maximum internal memory	128 GB
Supported memory clock speeds	2133, 2400, 2667, 2933, 3200, 3533 MHz
Supported memory clock speed (max)	3533 MHz
Supported memory module capacities	4GB, 8GB, 16GB, 32GB
BIOS type	UEFI AMI
ACPI version	5.1
BIOS memory size	128 Mbit
System Management BIOS (SMBIOS) version	2.3
DirectX version	12.0
Maximum resolution	4096 x 2160 pixels
Maximum graphics card memory	2048 MB
Parallel processing technology support	CrossFireX, Quad-GPU CrossFireX
Wi-Fi	No
LAN controller	Realtek RTL8111H
Ethernet interface type	Gigabit Ethernet
Number of M.2 (M) slots	2
USB 3.2 Gen 2 (3.1 Gen 2) connectors	0
HDMI version	1.4
DisplayPort version	1.2
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Cables included	SATA
Weight	750 g
RAID levels	0, 1, 10
Supported storage drive types	HDD & SSD
Supported storage drive interfaces	M.2, SATA III
Harmonized System (HS) code	84733020