GIGABYTE B840 EAGLE WIFI6E (B840 EAGLE WF6E)

Copyright and Disclaimer

© 2025 GIGA-BYTE TECHNOLOGY CO., LTD. All rights reserved. Trademarks are legally 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 without GIGABYTE's written permission.

For detailed product information, refer to the User's Manual. For quick setup, refer to the Quick Installation Guide on GIGABYTE's website: https://download.gigabyte.com/FileList/Manual/mb_manual_installation-guide_800series.pdf

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

Identifying Your Motherboard Revision

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

Chapter 1: Product Introduction

1-1 Motherboard Layout

The motherboard features the AM5 CPU socket. It includes four DDR5 DIMM slots (DDR5_A1, DDR5_A2, DDR5_B1, DDR5_B2) supporting Dual Channel memory. Expansion slots include one PCI Express x16 slot (PCIEX16), one PCI Express x4 slot, and two PCI Express x1 slots (PCIEX1_1, PCIEX1_2). Storage interfaces include three M.2 connectors (M2A_CPU, M2B_CPU, M2C_SB) and four SATA 6Gb/s connectors. Connectivity is provided by Realtek® 2.5GbE LAN, USB 2.0 Hub, USB 3.2 Gen 1 Hub, and USB Type-C® header. Audio is handled by a Realtek® Audio CODEC. Various headers are present for system fans (CPU_FAN, SYS_FAN1/2/3, FAN4_PUMP, CPU_OPT), RGB lighting (LED_C, ARGB_V2_1/2/3), front panel connectors (F_PANEL, F_AUDIO), and other modules like SPI_TPM and CLR_CMOS jumpers.

1-2 Box Contents

• B840 EAGLE WIFI6E motherboard
• User's Manual
• Quick Installation Guide
• One antenna
• Two SATA cables
• One G Connector
• M.2 screws
• One pack of M.2 thick/thin rubber pads

The box contents are for reference only and may vary. They are subject to change without notice.

Chapter 2: Hardware Installation

2-1 Installation Precautions

Handle the motherboard with care to prevent damage from electrostatic discharge (ESD). Ensure the chassis is suitable. Do not remove serial number or warranty stickers. Always disconnect AC power before installation or removal of components. Connect internal components securely. Avoid touching metal leads or connectors. Use an ESD wrist strap if available, or touch a metal object to discharge static. Place the motherboard on an antistatic pad or in a shielding container. Ensure the power supply is turned off and voltage is set correctly. Verify all cable connections. Prevent screws from contacting motherboard circuits. Keep the casing free of loose components. Do not place the system on uneven or wet/high-temperature surfaces. Do not power on the computer during installation. Consult a certified technician if uncertain. Follow installation and grounding instructions for adapters, extension cables, or power strips.

2-2 Product Specifications

GIGABYTE reserves the right to make changes to specifications and information without prior notice. Visit the SERVICE/SUPPORT\Utility page for app downloads: https://www.gigabyte.com/Support/Utility/Motherboard?m=ut

2-3 Installing the CPU and CPU Cooler

CPU Installation Precautions: Ensure motherboard CPU support. Always turn off and unplug the computer before installation. Align the CPU's pin one marking (triangle) or notches with the socket's alignment keys. Apply a thin, even layer of thermal grease on the CPU surface. Do not power on without a CPU cooler installed to prevent overheating. Set CPU host frequency according to specifications; avoid exceeding them without understanding implications.

CPU Orientation: The CPU socket and CPU have alignment keys and notches. The CPU socket has a triangle marking for pin one. The CPU also has a triangle marking and notches for correct orientation.

CPU Installation Steps:

1. Gently press the CPU socket lever down and away, then lift the locking lever completely. Hold the plastic protective cover attached to the metal load plate and lift it open.
2. Hold the CPU by its edges. Align the CPU's pin one marking (triangle) or notches with the corresponding markings on the CPU socket. Gently insert the CPU.
3. Ensure the CPU is properly installed, then close the load plate and secure the socket lever. The protective cover will pop off. Always replace the protective cover when the CPU is not installed.

Do not force the CPU socket locking lever if the CPU is not installed correctly, as this can damage the CPU and socket.

CPU Cooler Installation: Apply thermal grease to the CPU. For Type A coolers, hook the clip to the mounting lug and secure it. For Type B coolers, remove the retention frame, align the cooler's shoulder screws with the standoffs, and fasten screws in a 1-2-3-4 pattern. Connect the CPU cooler's power connector to the CPU_FAN header on the motherboard.

2-4 Installing the Memory

Memory Installation Precautions: Ensure motherboard memory support. Use memory modules of the same capacity, brand, and speed. Turn off and unplug the computer before installation. Memory modules are keyed for one-way insertion. Install in DDR5_A2 socket first.

Recommended Memory Configurations:

* Recommended Dual Channel Memory Configurations.

Dual Channel Memory Configuration: The motherboard has four memory sockets supporting Dual Channel Technology. This doubles memory bandwidth. Sockets are divided into Channel A (DDR5_A1, DDR5_A2) and Channel B (DDR5_B1, DDR5_B2). For Dual Channel mode, at least two modules are required, and using identical modules is recommended.

2-5 Installing an Expansion Card

Expansion Card Installation Precautions: Ensure motherboard support for the expansion card. Turn off and unplug the computer before installation.

Installation Steps:

1. Locate a compatible expansion slot and remove the chassis back panel slot cover.
2. Align the card with the slot and press down until fully seated.
3. Ensure the expansion card is fully seated.
4. Secure the card's metal bracket to the chassis back panel with a screw.
5. Replace the chassis cover(s).
6. Turn on the computer. Adjust BIOS settings if necessary for the expansion card.
7. Install the driver provided with the expansion card.

2-6 Back Panel Connectors

• Clear CMOS Button: Resets BIOS configuration to factory defaults. Always turn off and unplug the computer before use. Do not use while the system is on.
• Q-Flash Plus Button: Allows BIOS updates when the system is off. Save BIOS to a USB drive, plug into the dedicated port, and press the button. The QFLED indicates flashing status.
• DisplayPort: Supports high-quality digital imaging and audio, with bi-directional audio. Max resolution 3840x2160@144 Hz (monitor dependent).
• HDMI Port: HDCP 2.3 compliant, supports Dolby TrueHD and DTS HD Master Audio. Supports up to 192KHz/24bit 7.1-channel LPCM audio. Max resolution 4096x2160@60 Hz (monitor dependent). Set as default audio playback device.
• USB 2.0/1.1 Port: Supports USB 2.0/1.1 specification for USB devices.

When removing cables, pull straight out to prevent damage.

2-6 Back Panel Connectors (Continued)

• USB 3.2 Gen 2 Type-A Port (Red) (Q-Flash Plus Port): Supports USB 3.2 Gen 2, Gen 1, and 2.0. Use for USB devices, and for Q-Flash Plus.
• USB Type-C® Port (with USB 3.2 Gen 2 Support): Reversible port supporting USB 3.2 Gen 2, Gen 1, and 2.0. Use for USB devices.
• RJ-45 LAN Port: Gigabit Ethernet (2.5 Gbps). LEDs indicate speed and activity.
• USB 3.2 Gen 1 Port: Supports USB 3.2 Gen 1 and 2.0. Use for USB devices.
• Antenna Connectors (2T2R): For connecting antennas. Ensure secure connection and proper aiming for signal reception.
• Audio Jacks: Line In/Rear Speaker Out (Blue), Line Out/Front Speaker Out (Green), Mic In/Center/Subwoofer Speaker Out (Pink). Supports 2/4/5.1/7.1-channel audio. Functionality can be configured via audio software. Visit GIGABYTE's website for audio software configuration: https://www.gigabyte.com/WebPage/697/realtek897-audio.html

2-7 Internal Connectors

The motherboard provides numerous internal connectors:

• 12V_2X4 / ATX Power Connectors: Provide power to the motherboard and CPU. Ensure correct orientation and sufficient PSU wattage (recommended 500W+).
• Fan Headers (CPU_FAN, SYS_FAN1/2/3, FAN4_PUMP, CPU_OPT): 4-pin headers for CPU and system fans, and water cooling pumps. Support PWM speed control. Connect fan cables correctly (black wire is ground).
• RGB LED Strip Header (LED_C): For standard 5050 RGB LED strips (12V/G/R/B), max 2A (12V). Connect 12V pin to Pin 1.
• Addressable RGB Gen2 LED Strip Headers (ARGB_V2_1/2/3): For addressable RGB Gen2 LED strips, max 3A (5V), 256 LEDs. Connect 5V pin to Pin 1. Do not mix Gen1 and Gen2 strips on the same header.
• SATA3 0/1/2/3 Connectors: SATA 6Gb/s connectors supporting SATA 3Gb/s and 1.5Gb/s. Support RAID 0, 1, 10.
• M.2 Socket 3 Connectors (M2A_CPU, M2B_CPU, M2C_SB): Support M.2 PCIe SSDs. M.2 PCIe SSDs cannot form RAID sets with SATA HDDs. Installation involves using M.2 EZ-Latch Click or Plus clips. Rubber pads are provided for SSD installation.
• F_PANEL (Front Panel Header): Connects chassis power switch, reset switch, LEDs (Power, HDD Activity), speaker, and chassis intrusion sensor. Pin assignments are provided for correct connection.
• F_AUDIO (Front Panel Audio Header): Connects chassis front panel audio module. Supports High Definition audio. Ensure correct pin assignments.
• FU3C_5G (USB Type-C® Header): USB 3.2 Gen 1 header for one USB Type-C® port.
• FU3A_5G_1/FU3A_5G_2 (USB 3.2 Gen 1 Headers): USB 3.2 Gen 1 and USB 2.0 headers for two USB ports each.
• FUSB_1/FUSB_2 (USB 2.0/1.1 Headers): USB 2.0/1.1 headers for two USB ports each via an optional bracket.
• SPI_TPM (Trusted Platform Module Header): For connecting an SPI TPM module.
• RST (Reset Jumper): Connects to the chassis reset switch. Can be remapped for other functions via BIOS.
• BAT (Battery): Provides power to CMOS for BIOS settings when the computer is off. Replace with equivalent type. Handle used batteries according to local regulations.
• CLR_CMOS (Clear CMOS Jumper): Resets BIOS configuration to factory defaults by shorting two pins. Always turn off and unplug the computer first.
• CPU/DRAM/VGA/BOOT (Status LEDs): Indicate the status of CPU, memory, graphics card, and boot process after power-on.

Chapter 3: BIOS Setup

The BIOS (Basic Input and Output System) stores hardware parameters in CMOS and manages system startup (POST), parameter saving, and OS loading. The BIOS Setup program allows modification of system configuration and activation of features.

Accessing BIOS: Press the <Delete> key during POST.

BIOS Upgrade: Use GIGABYTE Q-Flash or Q-Flash Plus utility. Q-Flash allows upgrades within the OS. Q-Flash Plus allows upgrades when the system is off (S5 state) by using a USB thumb drive. Refer to GIGABYTE's website for "BIOS Update Utilities".

Caution: BIOS flashing is risky. Only flash if necessary. Inadequate flashing may cause system malfunction. Avoid altering default settings unless required, as it may lead to instability or boot failure. If boot failure occurs, clear CMOS values.

Startup Screen: Displays the GIGABYTE logo upon booting.

Function Keys:

• <DEL>: Enters BIOS Setup or Q-Flash utility.
• <F12>: Opens the Boot Menu to select the first boot device. Setting is temporary.
• <END>: Accesses Q-Flash utility directly.

Chapter 4: Installing the Operating System and Drivers

4-1 Operating System Installation

With correct BIOS settings, install the operating system. Some OS versions include RAID drivers. After OS installation, install required drivers via GIGABYTE Control Center (GCC) for optimal performance and compatibility. If a RAID driver is needed during OS installation:

1. Download the AMD RAID Preinstall Driver from GIGABYTE's website (Support\Download\SATA RAID/AHCI), unzip, and copy to a USB drive.
2. Boot from the Windows setup disc. When prompted to load drivers, select "Browse".
3. Select the USB drive and install the "AMD-RAID Bottom Device", "AMD-RAID Controller", and "AMD-RAID Config Device" drivers in order.

Continue OS installation.

4-2 Drivers Installation

After OS installation, a dialog may prompt to install drivers and GIGABYTE applications via GCC. Click "Install". Ensure "Gigabyte Utilities Downloader" is enabled in BIOS Setup (Settings\IO Ports\Gigabyte Utilities Downloader Configuration).

Accept the End User License Agreement (EULA) to install GCC. Select desired drivers and applications within GCC and click "Install".

Ensure the system is connected to the Internet before installation. For more software information: https://www.gigabyte.com/WebPage/1082/amd800-app.html. For troubleshooting: https://www.gigabyte.com/WebPage/351/faq.html

Chapter 5: Appendix

5-1 Configuring a RAID Set

This motherboard supports RAID 0, RAID 1, RAID 5, and RAID 10. Prepare the necessary number of hard drives as indicated:

Preparation: SATA hard drives or SSDs (identical model/capacity recommended for performance), Windows setup disc, internet-connected computer, USB thumb drive.

An M.2 PCIe SSD cannot be used in a RAID set with a SATA hard drive. RAID 5 is only available on NVMe SSDs with AMD Ryzen™ 9000 Series Processors.

For RAID array configuration details, visit GIGABYTE's website: https://www.gigabyte.com/WebPage/1080/amd800-raid.html

Regulatory Notices

United States: FCC Compliance Statement This device complies with Part 15 of the FCC Rules. Operation is subject to two conditions: no harmful interference, and acceptance of any received interference. Safety standards for human exposure to RF energy are met.

Safety Precautions: Do not touch antennas during transmission/reception. Avoid holding components near the body while transmitting. Do not operate without an antenna. Use in specific environments (hazardous locations, airplanes, hospitals) is restricted.

Antenna Use: Maintain a minimum distance of 7.9 inches (20 cm) from bodies to comply with FCC RF exposure limits.

Explosive Device Proximity Warning: Do not operate near unshielded blasting caps or in explosive environments unless qualified.

Use On Aircraft Caution: FCC and FAA regulations prohibit airborne operation of RF devices due to potential interference with aircraft instruments.

Canada: Industry Canada Notice This device complies with Industry Canada license-exempt RSS standards. Operation is subject to conditions of no harmful interference and acceptance of all interference. For IEEE 802.11a wireless LAN, use is restricted to indoor environments for the 5.15-5.25 GHz band to reduce interference with satellite systems. Maximum antenna gain is 6dBi for compliance with EIRP limits. Maintain 20cm separation from bodies.

European Union (EU) CE Declaration of Conformity: The device complies with EU directives (EMC, Low-voltage, Radio Equipment, ErP, RoHS). Multilingual declarations are provided.

WEEE Directive: Indicates proper disposal and recycling procedures for electronic waste. Do not dispose of with household waste.

Battery Information: For EU, disposal and recycling information is provided. The product may contain a button cell battery (CR2032). WARNING: Ingestion hazard. Keep batteries out of reach of children. Seek immediate medical attention if swallowed. Do not recharge non-rechargeable batteries. Handle used batteries responsibly. Risk of fire/explosion if battery is replaced with an incorrect type.

UK Radio Equipment Regulations 2017: Compliance statement for UK regulations.

NCC Wireless Statements (China, Korea, Japan): Statements regarding low power radio frequency device regulations in these regions.

Wireless Module Approvals: Lists approvals for the Realtek RTL8852CE wireless module from various regulatory bodies (FCC, ISED, ACMA, CMIIT, etc.).

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

Tech. and Non-Tech. Support (Sales/Marketing): https://esupport.gigabyte.com

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WEB address (Chinese): https://www.gigabyte.com/tw

GIGABYTE eSupport: For technical or non-technical questions, visit https://esupport.gigabyte.com.