GIGABYTE B450M DS3H WIFI

Copyright and Disclaimer

© 2023 GIGA-BYTE TECHNOLOGY CO., LTD. All rights reserved. Trademarks are registered to their respective owners.

This manual is protected by copyright laws and is the property of GIGABYTE. Specifications and features may change without prior notice. No part of this manual may be reproduced, copied, translated, transmitted, or published in any form without GIGABYTE's written permission.

For detailed product information, refer to the User's Manual. For quick setup, consult the Quick Installation Guide on GIGABYTE's website: ? download.gigabyte.com

For product-related information, visit: ? www.gigabyte.com

Identifying Your Motherboard Revision

The motherboard revision number is indicated as "REV: X.X." For example, "REV: 1.0" signifies revision 1.0. Check your motherboard revision before updating BIOS, drivers, or seeking technical information.

Example: The image shows a motherboard component with "REV: 1.0 F" printed on it.

Chapter 1: Product Introduction

1-1 Motherboard Layout

The motherboard features various connectors and components. Key areas include:

• CPU Socket: Socket AM4 for AMD processors.
• Memory Slots: Four DDR4 DIMM slots (DDR4_1, DDR4_2, DDR4_3, DDR4_4).
• Expansion Slots: PCIEX16, PCIEX1_1, PCIEX1_2.
• Storage Connectors: M2A_SOCKET, SATA3 connectors.
• Power Connectors: ATX_12V, ATX.
• Fan Headers: CPU_FAN, SYS_FAN1.
• Internal Headers: LED_CPU, LED_C, D_LED1/D_LED2, F_USB30, F_USB1, F_AUDIO, F_PANEL, COM, TPM, BAT, CLR_CMOS.
• Back Panel Connectors: KB_MS_USB, R_USB30_1, R_USB30_2, M2_WIFI, USB_LAN, AUDIO, HDMI, SPDIF_O.
• Chipset: AMD B450.
• LAN: Realtek GbE LAN.
• Audio: Realtek Audio CODEC.

Chapter 2: Hardware Installation

2-1 Installation Precautions

Handle the motherboard with care to prevent damage from electrostatic discharge (ESD). Follow these procedures:

• Ensure the chassis is suitable for the motherboard.
• Do not remove or damage the motherboard's S/N or warranty stickers.
• Always disconnect AC power before installing or removing components.
• Connect hardware components tightly and securely.
• Avoid touching metal leads or connectors when handling the motherboard.
• Use an ESD wrist strap or touch a metal object to discharge static electricity.
• Place the motherboard on an antistatic pad or in an electrostatic shielding container.
• Ensure the power supply is turned off before connecting/unplugging its cable.
• Verify the power supply voltage matches the local standard before powering on.
• Confirm all cables and power connectors are properly connected before use.
• Prevent screws from contacting motherboard circuits or components.
• Ensure no leftover screws or metal components are inside the computer casing.
• Do not place the computer on uneven surfaces or in high-temperature/wet environments.
• Do not turn on computer power during installation to avoid damage or harm.
• Consult a certified technician if uncertain about installation steps.
• Follow installation and grounding instructions for adapters, extension cables, or power strips.

2-2 Product Specifications

2-3 Installing the CPU

Guidelines:

• Ensure CPU compatibility with the motherboard (check GIGABYTE's website).
• ⚠️ Always turn off the computer and unplug the power cord before installation.
• Locate the CPU's pin one (small triangle) for correct orientation; it cannot be inserted if oriented incorrectly.
• Apply an even, thin layer of thermal grease on the CPU surface.
• ⚠️ Do not turn on the computer without a CPU cooler installed to prevent overheating and damage.
• Set CPU host frequency according to specifications; avoid exceeding hardware limits to ensure peripheral compatibility.

Installation Steps:

1. Locate pin one on the CPU socket and the CPU (marked by a small triangle).
2. Completely lift the CPU socket locking lever.
3. Align the CPU's pin one with the socket's pin one and gently place the CPU into the socket.
4. ⚠️ Do not force the CPU into the socket if the locking lever is not lifted; this can damage the CPU and socket.

2-4 Installing the Memory

Guidelines:

• Ensure memory compatibility (capacity, brand, speed, chips). Refer to GIGABYTE's website for supported modules.
• ⚠️ Always turn off the computer and unplug the power cord before installing memory.
• Memory modules have a foolproof design; if insertion is difficult, try rotating the module 180 degrees.

Dual Channel Memory Configuration:

The motherboard supports Dual Channel Technology with four memory sockets divided into two channels (Channel A: DDR4_2, DDR4_4; Channel B: DDR4_1, DDR4_3). Enabling Dual Channel mode doubles memory bandwidth. For optimal performance, use memory modules of the same capacity, brand, speed, and chips. For two modules, install them in DDR4_1 and DDR4_2 sockets.

Recommended Dual Channel Memory Configuration:

(SS=Single-Sided, DS=Double-Sided, "- -"=No Memory)

Dual Channel mode requires at least two memory modules. For optimum performance with two modules, install them in DDR4_1 and DDR4_2 sockets.

2-5 Installing an Expansion Card

Guidelines:

• Ensure the expansion card is compatible with the motherboard. Refer to the card's manual.
• ⚠️ Always turn off the computer and unplug the power cord before installing an expansion card.

2-6 Back Panel Connectors

The back panel provides various ports:

• USB 2.0/1.1 Port: For USB devices.
• PS/2 Keyboard/Mouse Port: For connecting a PS/2 mouse or keyboard.
• HDMI Port: Supports HDCP 2.2, Dolby TrueHD, DTS HD Master Audio, and up to 192 KHz/24bit 7.1-channel LPCM audio. Connects to HDMI-supported monitors. Maximum resolution is 4096x2160@60 Hz (actual resolution depends on monitor). Set HDMI as the default playback device in your OS.
• RJ-45 LAN Port: Gigabit Ethernet for Internet connection (up to 1 Gbps). Features speed and activity LEDs.
• Audio Jacks: Line In/Rear Speaker Out (Blue), Line Out/Front Speaker Out (Green), Mic In/Center/Subwoofer Speaker Out (Pink). Supports various channel configurations (2, 4, 5.1, 7.1). Functionality can be adjusted via audio software.

Antenna Connection: Tighten antenna cables to connectors and position antennas for good signal reception.

Cable Removal: When removing cables from back panel connectors, detach from the device first, then the motherboard. Pull cables straight out, do not rock them side-to-side to prevent shorts.

2-7 Internal Connectors

The motherboard has numerous internal headers for connecting components:

• 1) ATX_12V: 4-pin or 8-pin power connector for CPU.
• 2) ATX: 24-pin main power connector.
• 3) CPU_FAN: 4-pin connector for CPU fan.
• 4) SYS_FAN1: 4-pin connector for system fan.
• 5) LED_CPU: Header for CPU cooler LED strip or 5050 RGB LED strip (12V/G/R/B, 2A max). Power pin must connect to Pin 1 (12V).
• 6) LED_C: Header for 5050 RGB LED strip (12V/G/R/B, 2A max). Power pin must connect to Pin 1 (12V).
• 7) D_LED1/D_LED2: Headers for addressable 5050 LED strips (5V, 2A max, 5m or 1000 LEDs). Power pin must connect to Pin 1 (5V).
• 8) SATA3 0/1/2/3: SATA 6Gb/s connectors for storage devices, supporting SATA 3Gb/s and 1.5Gb/s. Supports RAID 0, RAID 1, RAID 10.
• 9) M2A_SOCKET: M.2 Socket 3 connector for M.2 SATA or PCIe SSDs. Supports RAID configuration.
• 10) SPDIF_O: S/PDIF Out header for digital audio output.
• 11) F_PANEL: Front Panel header for power switch, reset switch, speaker, chassis intrusion switch/sensor, and system status indicator LEDs.
• 12) F_AUDIO: Front Panel Audio header for High Definition audio module.
• 13) F_USB30: USB 3.1 Gen 1 header providing two USB ports.
• 14) F_USB1: USB 2.0/1.1 header providing two USB ports.
• 15) COM: Serial Port header for an optional COM port cable.
• 16) TPM: Trusted Platform Module header.
• 17) BAT: Battery connector for CMOS values.
• 18) CLR_CMOS: Clear CMOS jumper to reset BIOS configuration to factory defaults.

Power Connector Pinouts:

ATX_12V (4-pin/8-pin): Supplies power to the CPU.

ATX (24-pin): Main motherboard power connector.

CPU_FAN/SYS_FAN1 (Fan Headers): 4-pin headers for fans. Ensure correct orientation (black wire is ground). Supports CPU fan speed control. A system fan is recommended for heat dissipation.

⚠️ Connect fan cables properly to prevent CPU/system overheating.

LED Headers (LED_CPU, LED_C, D_LED1/D_LED2): Used for connecting LED strips. Ensure correct voltage and pin connections (Pin 1 for power) to avoid damage.

SATA3 Connectors: SATA 6Gb/s connectors for storage devices, supporting RAID configurations.

M2A_SOCKET: M.2 connector for SSDs. Supports RAID configuration. Note: M.2 PCIe SSDs cannot be used in RAID with M.2 SATA SSDs or SATA HDDs.

SPDIF_O: Header for S/PDIF digital audio output.

F_PANEL (Front Panel Header): Connects chassis front panel components like power switch, reset, LEDs, and speaker. Ensure correct pin assignments.

F_AUDIO (Front Panel Audio Header): Connects chassis front panel audio module. Ensure correct pin assignments.

F_USB30 (USB 3.1 Gen 1 Header): Provides two USB 3.1 Gen 1 ports.

F_USB1 (USB 2.0/1.1 Header): Provides two USB 2.0/1.1 ports.

COM (Serial Port Header): For optional COM port cable.

TPM (Trusted Platform Module Header): For connecting a TPM module.

BAT (Battery): Provides power to CMOS when the system is off. Replace when voltage is low.

CLR_CMOS (Clear CMOS Jumper): Resets BIOS settings to factory defaults. ⚠️ Always turn off power before clearing CMOS.

Chapter 3: BIOS Setup

The BIOS (Basic Input and Output System) records hardware parameters and manages system startup. The BIOS Setup program allows modification of system configuration settings.

To access BIOS Setup, press the Delete key during POST.

BIOS Upgrade Utilities:

• GIGABYTE Q-Flash: Quickly upgrades or backs up BIOS without entering the OS.
• @BIOS: A Windows-based utility to search and download the latest BIOS from the Internet.

Refer to GIGABYTE's website for "BIOS Update Utilities" for detailed instructions.

⚠️ BIOS flashing is risky. Only flash if necessary and with caution. Incorrect flashing can cause system malfunction.

⚠️ Avoid altering default settings unless required, as it may lead to system instability or boot failure. If issues occur, clear CMOS values.

Refer to Chapter 2 for battery/clear CMOS jumper details or GIGABYTE's website for "Load Optimized Defaults".

For BIOS configuration details, visit: ? www.gigabyte.com

Startup Screen and Function Keys

The startup screen displays the GIGABYTE logo during boot.

Function Keys:

• DEL: Accesses BIOS Setup or Q-Flash utility.
• F12: Opens the Boot Menu to select the first boot device. Settings are temporary.
• END: Directly accesses the Q-Flash utility.

Chapter 4: Installing the Operating System and Drivers

4-1 Operating System Installation

Ensure correct BIOS settings before installing the OS. Some OS versions include RAID drivers; otherwise, download the AMD RAID Preinstall Driver from GIGABYTE's website (Support\Download\SATA RAID/AHCI). Copy files to a USB drive.

Installation Steps:

1. Boot from the Windows setup disc.
2. When prompted to load drivers, click 'Browse' and select the USB drive.
3. Select 'AMD-RAID Bottom Device' and click 'Next'.
4. Select 'AMD-RAID Controller' and click 'Next'.
5. Continue OS installation.

4-2 Drivers Installation

After OS installation, a prompt may appear to download and install drivers and GIGABYTE applications via APP Center. Ensure 'APP Center Download & Install' is enabled in BIOS Setup.

Accept the End User License Agreement to install APP Center. Select desired drivers and applications within APP Center and click 'Install'.

Ensure the system is connected to the Internet before installation.

For software information: ? www.gigabyte.com

For troubleshooting: ? www.gigabyte.com

Chapter 5: Appendix

5-1 Configuring a RAID Set

This motherboard supports RAID 0, RAID 1, and RAID 10.

Items to prepare:

• SATA hard drives or SSDs (recommend identical model/capacity for optimal performance).
• Windows setup disc.
• An Internet-connected computer.
• A USB thumb drive.

⚠️ An M.2 PCIe SSD cannot be used to set up a RAID set with a SATA hard drive.

For RAID configuration details, visit: ? www.gigabyte.com

Regulatory Notices

This section details compliance with various international regulations, including FCC (USA), Industry Canada, and EU directives (EMC, Low-voltage, Radio Equipment, RoHS, WEEE). It also includes statements in multiple languages such as French, German, Spanish, Italian, Polish, Czech, Hungarian, Greek, Korean, and Chinese, pertaining to product safety, RF exposure, and disposal.

Key points include:

• FCC Compliance: Device complies with Part 15 of FCC Rules.
• RF Exposure: Adheres to safety standards for human exposure to radio frequency energy. Specific precautions for antenna use and operation in hazardous environments are provided.
• Canada-Industry Notice: Complies with Industry Canada license-exempt RSS standards. Restrictions apply to 5.15-5.35 GHz band for indoor use.
• EU Directives: Compliance with EMC, Low-voltage, Radio Equipment, RoHS, and WEEE directives.
• WEEE Symbol: Indicates that the product should not be disposed of with household waste but taken to designated collection centers for recycling.
• Battery Information: Instructions for disposal and recycling in the EU.
• Wireless Module Approvals: Lists approvals for various wireless modules (Intel 3168NGW, Intel 9260NGW, Realtek RTL8821CE) with FCC IDs, IC numbers, and other regional certifications.

Contact Us

GIGA-BYTE TECHNOLOGY CO., LTD.

Address: No.6, Baoqiang Rd., Xindian Dist., New Taipei City 231

TEL: +886-2-8912-4000, FAX: +886-2-8912-4005

Technical and Non-Technical Support (Sales/Marketing): ? esupport.gigabyte.com

English WEB address: ? www.gigabyte.com

Chinese WEB address: ? www.gigabyte.com/tw

GIGABYTE eSupport: For technical or sales inquiries, visit ? esupport.gigabyte.com.