Gigabyte B450M K User manual

B450M K
User's Manual
Rev. 1001
For more product details, please visit GIGABYTE's website.
https://www.gigabyte.com/Motherboard/B450M-K-rev-10?m=ma#kf
GIGABYTE will reduce paper use in order to fulll the responsibilities of a global citizen.
Also, to reduce the impacts on global warming, the packaging materials of this product
are recyclable and reusable. GIGABYTE works with you to protect the environment.

Copyright
©2022 GIGA-BYTE TECHNOLOGY CO., LTD. All rights reserved.
The trademarks mentioned in this manual are legally registered to their respective owners.
Disclaimer
Information in this manual is protected by copyright laws and is the property of GIGABYTE.
Changes to the specications and features in this manual may be made by GIGABYTE without
prior notice. No part of this manual may be reproduced, copied, translated, transmitted, or
published in any form or by any means without GIGABYTE's prior written permission.
For detailed product information, carefully read the User's Manual.
For quick set-up of the product, refer to the Quick Installation Guide on GIGABYTE's
website.
https://download.gigabyte.com/FileList/Manual/mb_manual_installation-guide_103.pdf?m=sw
For product-related information, check on our website at: https://www.gigabyte.com
Identifying Your Motherboard Revision
The revision number on your motherboard looks like this: "REV: X.X." For example, "REV: 1.0"
means the revision of the motherboard is 1.0. Check your motherboard revision before updating
motherboard BIOS, drivers, or when looking for technical information.
Example:

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Table of Contents
Chapter 1 Product Introduction.......................................................................................4
1-1 Motherboard Layout......................................................................................... 4
1-2 Box Contents.................................................................................................... 5
Chapter 2 Hardware Installation .....................................................................................6
2-1 Installation Precautions.................................................................................... 6
2-2 Product Specications...................................................................................... 7
2-3 Installing the CPU .......................................................................................... 10
2-4 Installing the Memory..................................................................................... 11
2-5 Installing an Expansion Card ......................................................................... 12
2-6 Back Panel Connectors.................................................................................. 13
2-7 Internal Connectors........................................................................................ 15
Chapter 3 BIOS Setup ..................................................................................................24
Chapter 4 Installing the Operating System and Drivers................................................26
4-1 Operating System Installation ........................................................................ 26
4-2 Drivers Installation.......................................................................................... 27
Chapter 5 Appendix ......................................................................................................28
5-1 Conguring a RAID Set.................................................................................. 28
Regulatory Notices.................................................................................................... 29
Contact Us ................................................................................................................ 30

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1-1 Motherboard Layout
Chapter 1 Product Introduction
Temperature sensor
KB_MS CPU_FAN
SYS_FAN1
ATX
B450M K
AUDIO
DDR4_2 DDR4_1
BAT
ATX_12V
AMD
B450
R_USB30_1
HDMI
CODEC
M_BIOS
PCIEX16
PCIEX1 iTE®
Super I/O
Realtek®
GbE LAN
F_USB30
CI
SPEAKER
F_USB1 F_PANEL
F_USB2F_AUDIO
SATA3
012
USB_LAN
Socket AM4
R_USB30_2
3
CLR_CMOS
TPM
M2F_32G
80 60 42110
SATA3

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1-2 Box Contents
5B450M K motherboard
5User's Manual
5One SATA cable
5I/O Shield
* The box contents above are for reference only and the actual items shall depend on the product package you obtain.
The box contents are subject to change without notice.

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2-1 Installation Precautions
The motherboard contains numerous delicate electronic circuits and components which can become
damaged as a result of electrostatic discharge (ESD). Prior to installation, carefully read the user's
manual and follow these procedures:
•Prior to installation, make sure the chassis is suitable for the motherboard.
•Prior to installation, do not remove or break motherboard S/N (Serial Number) sticker or
warranty sticker provided by your dealer. These stickers are required for warranty validation.
•Always remove the AC power by unplugging the power cord from the power outlet before
installing or removing the motherboard or other hardware components.
•When connecting hardware components to the internal connectors on the motherboard, make
sure they are connected tightly and securely.
•When handling the motherboard, avoid touching any metal leads or connectors.
•It is best to wear an electrostatic discharge (ESD) wrist strap when handling electronic
components such as a motherboard, CPU or memory. If you do not have an ESD wrist strap,
keep your hands dry and rst touch a metal object to eliminate static electricity.
•Prior to installing the motherboard, please have it on top of an antistatic pad or within an
electrostatic shielding container.
•Before connecting or unplugging the power supply cable from the motherboard, make sure
the power supply has been turned off.
•Before turning on the power, make sure the power supply voltage has been set according to
the local voltage standard.
•Before using the product, please verify that all cables and power connectors of your hardware
components are connected.
•To prevent damage to the motherboard, do not allow screws to come in contact with the
motherboard circuit or its components.
•Make sure there are no leftover screws or metal components placed on the motherboard or
within the computer casing.
•Do not place the computer system on an uneven surface.
•Do not place the computer system in a high-temperature or wet environment.
•Turning on the computer power during the installation process can lead to damage to system
components as well as physical harm to the user.
•If you are uncertain about any installation steps or have a problem related to the use of the
product, please consult a certied computer technician.
•If you use an adapter, extension power cable, or power strip, ensure to consult with its installation
and/or grounding instructions.
Chapter 2 Hardware Installation

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2-2 ProductSpecications
CPU AMD Socket AM4, support for:
AMD Ryzen™5000 Series Processors/
AMD Ryzen™5000 G-Series Processors/
AMD Ryzen™4000 G-Series Processors/
3rd Generation AMD Ryzen™processors/
2nd Generation AMD Ryzen™processors/
1st Generation AMD Ryzen™processors/
2nd Generation Ryzen™with Radeon™Vega Graphics processors/
1st Generation Ryzen™with Radeon™Vega Graphics processors/
Athlon™with Radeon™Vega Graphics Processors
(Go to GIGABYTE's website for the latest CPU support list.)
Chipset AMD B450
Memory 2 x DDR4 DIMM sockets supporting up to 64 GB (32 GB single DIMM capacity)
of system memory
Dual channel memory architecture
Support for DDR4 2667 (Note 1)/2400/2133 MHz memory modules
Support for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules (operate in
non-ECC mode)
Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modules
Support for Extreme Memory Prole (XMP) memory modules
(Go to GIGABYTE's website for the latest supported memory speeds and memory
modules.)
Onboard
Graphics
Integrated Graphics Processor:
- 1 x HDMI port, supporting a maximum resolution of 4096x2160@60 Hz
* Support for HDMI 2.0 version, HDCP 2.2, and HDR.
Maximum shared memory of 16 GB
Audio Realtek®Audio CODEC
High Denition Audio
2/4/5.1/7.1-channel
* You can change the functionality of an audio jack using the audio software. To
congure 7.1-channel audio, access the audio software for audio settings.
LAN Realtek®GbE LAN chip (1 Gbps/100 Mbps)
Expansion Slots CPU:
- 1 x PCI Express x16 slot, supporting PCIe 3.0 and running at x16 (Note 1)
Chipset:
- 1 x PCI Express x1 slot, supporting PCIe 2.0 and running at x1
Storage Interface CPU:
- 1 x M.2 connector (Socket 3, M key, type 22110/2280/2260/2242 SATA and
PCIe 3.0 x4/x2 (Note 2) SSD support)
* Refer to "2-7 Internal Connectors," for the installation notices for the M.2 connector.
- 4 x SATA 6Gb/s connectors
RAID 0, RAID 1, and RAID 10 support for NVMe SSD storage devices
RAID 0, RAID 1, and RAID 10 support for SATA storage devices
(Note 1) Actual support may vary by CPU.
(Note 2) Supports only M.2 SATA SSDs when using an Athlon™with Radeon™Vega Graphics Processors.

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USB CPU:
- 4 x USB 3.2 Gen 1 ports on the back panel
Chipset:
- 2 x USB 3.2 Gen 1 ports available through the internal USB header
- 6 x USB 2.0/1.1 ports (2 ports on the back panel, 4 ports available through
the internal USB headers)
Internal
Connectors
1 x 24-pin ATX main power connector
1 x 8-pin ATX 12V power connector
1 x CPU fan header
1 x system fan header
1 x M.2 Socket 3 connector
4 x SATA 6Gb/s connectors
1 x front panel header
1 x front panel audio header
1 x USB 3.2 Gen 1 header
2 x USB 2.0/1.1 headers
1 x Trusted Platform Module (TPM) header (2x6 pin, for the GC-TPM2.0_S
module only)
1 x speaker header
1 x Clear CMOS jumper
1 x chassis intrusion header
Back Panel
Connectors
1 x PS/2 keyboard port
1 x PS/2 mouse port
1 x HDMI 2.0 port
4 x USB 3.2 Gen 1 ports
2 x USB 2.0/1.1 ports
1 x RJ-45 port
3 x audio jacks
I/O Controller iTE®I/O Controller Chip
Hardware
Monitor
Voltage detection
Temperature detection
Fan speed detection
Fan fail warning
Fan speed control
* Whether the fan speed control function is supported will depend on the cooler you
install.
BIOS 1 x 128 Mbit ash
Use of licensed AMI UEFI BIOS
PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0

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Unique Features Support for APP Center
* Available applications in APP Center may vary by motherboard model. Supported
functions of each application may also vary depending on motherboard specications.
- @BIOS
- EasyTune
- Smart Backup
- System Information Viewer
Support for Q-Flash
Support for Xpress Install
Bundled
Software
Norton®Internet Security (OEM version)
LAN bandwidth management software
Operating
System
Support for Windows 11 64-bit
Support for Windows 10 64-bit
Support for Windows 7 64-bit
* Please download the "Windows USB Installation Tool" from GIGABYTE's website
and install it before installing Windows 7.
Form Factor Micro ATX Form Factor; 24.4cm x 19.5cm
* GIGABYTE reserves the right to make any changes to the product specications and product-related information without
prior notice.
&Please visit GIGABYTE's website for support lists of CPU, memory modules, SSDs, and M.2 devices.
https://www.gigabyte.com/Motherboard/B450M-K-rev-10?m=dl#support-dl
&Please visit the SERVICE/SUPPORT\Utility page on GIGABYTE's website to download the latest version
of apps.
https://www.gigabyte.com/Support/Utility/Motherboard?m=ut

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2-3 Installing the CPU
Read the following guidelines before you begin to install the CPU:
•Make sure that the motherboard supports the CPU.
(Go to GIGABYTE's website for the latest CPU support list.)
•Always turn off the computer and unplug the power cord from the power outlet before installing the
CPU to prevent hardware damage.
•Locate the pin one of the CPU. The CPU cannot be inserted if oriented incorrectly.
•Apply an even and thin layer of thermal grease on the surface of the CPU.
•Do not turn on the computer if the CPU cooler is not installed, otherwise overheating and damage
of the CPU may occur.
•Set the CPU host frequency in accordance with the CPU specications. It is not recommended
that the system bus frequency be set beyond hardware specications since it does not meet the
standard requirements for the peripherals. If you wish to set the frequency beyond the standard
specications, please do so according to your hardware specications including the CPU, graphics
card, memory, hard drive, etc.
Installing the CPU
Completely lift up the CPU socket locking lever. Locate the pin one (denoted by a small triangle) of the CPU
socket and the CPU. Once the CPU is positioned into its socket, place one nger down on the middle of the
CPU, lowering the locking lever and latching it into the fully locked position.
Do not force the CPU into the CPU socket before the CPU socket locking lever is lifted up, or
damage to the CPU and CPU socket may occur.
&Please visit GIGABYTE's website for details on hardware installation.
http://www.gigabyte.com/WebPage/210/quick-guide.html?m=sw
AM4 CPU
A Small Triangle Marking
Denotes CPU Pin One
AM4 CPU Socket
A Small Triangle Marking
Denotes Pin One of the Socket
Completely lift up the
CPU socket locking lever