GIGABYTE B840M Aorus Elite WIFI6E AMD Motherboard
MPN GIGABYTE-B840M-AORUS-ELITE-WIFI6E · Brand GIGABYTE · mATX
The GIGABYTE B840M Aorus Elite WiFi 6E is a Micro ATX AMD AM5 motherboard featuring DDR5 support up to 256 GB, Wi-Fi 6E, 2.5GbE LAN, dual M.2 PCIe 4.0 slots, and GIGABYTE's Smart Fan 6 thermal management
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Overview
The GIGABYTE B840M Aorus Elite WiFi 6E is a Micro ATX motherboard built on the AMD B840 chipset, designed for AMD Socket AM5 processors including Ryzen 9000, Ryzen 8000, and Ryzen 7000 series CPUs. Its compact 24.4 cm x 24.4 cm footprint makes it an efficient choice for space-conscious builds without compromising on feature depth. Connectivity is a standout strength. Onboard Wi-Fi 6E via the Realtek RTL8852CE module covers 2.4 GHz, 5 GHz, and 6 GHz bands with support for the 11ax 160 MHz wireless standard and Bluetooth 5.3. A Realtek 2.5GbE wired LAN port (2.5 Gbps/1 Gbps/100 Mbps) rounds out networking options for low-latency wired connections. Memory capacity is generous for this board class: four DDR5 DIMM slots accommodate up to 256 GB of system RAM in dual-channel configuration, with native speeds of 4400, 4800, and 5200 MT/s alongside extensive overclocking support up to DDR5-8200 (O.C.) via AMD EXPO and XMP profiles. Storage options include two M.2 PCIe 4.0 x4 connectors (M2A_CPU and M2B_CPU) plus four SATA 6 Gb/s ports, supporting RAID 0, 1, 5 (Ryzen 9000 only for NVMe), and 10. The primary PCIe x16 slot runs at PCIe 4.0 x16 with Ryzen 9000/7000 processors. Thermal management features high-coverage MOSFET heatsinks using a one-piece design with a 5 W/mK thermal pad and multi-cut channels for improved airflow. The Smart Fan 6 system supports PWM and DC fans and water-cooling pumps, with up to 24 W (12 V x 2 A) per fan header and built-in over-current protection. Fan curves are fully configurable with up to seven control points, slope or stair modes, and fan-stop functionality at low temperatures. The GIGABYTE UC BIOS includes X3D Turbo Mode for one-click gaming performance optimisation, Q-Flash Plus for USB-based BIOS flashing without a CPU installed, Direct-To-BIOS button, Safe Mode, and multi-theme support. The EZ Debug Zone provides centralised status LEDs for streamlined troubleshooting. Onboard audio is handled by a Realtek HD Audio CODEC supporting 2/4/5.1/7.1-channel output with audiophile-grade capacitors. RGB lighting is supported via three addressable Gen2 ARGB headers and one standard RGB header, managed through GIGABYTE Control Center (GCC). Verifiable Specifications: - Form Factor: Micro ATX, 24.4 cm x 24.4 cm - Chipset: AMD B840 - Socket: AMD AM5 - CPU Support: Ryzen 9000 / 8000 / 7000 Series - Memory: 4x DDR5 DIMM, up to 256 GB, DDR5-4400 native to DDR5-8200 O.C., EXPO and XMP - Storage: 2x M.2 PCIe 4.0 x4, 4x SATA 6 Gb/s, RAID 0/1/5/10 - Expansion: 1x PCIe 4.0 x16 (CPU), 1x PCIe 3.0 x4 (chipset) - Wireless: Wi-Fi 6E (RTL8852CE), 2.4/5/6 GHz, BT 5.3, 11ax 160 MHz - LAN: Realtek 2.5GbE - Display Output: 1x DisplayPort 1.4 (up to 3840x2160@144 Hz), 1x HDMI 2.1 (up to 4096x2160@60 Hz) - USB (rear): 1x USB-C 3.2 Gen 1, 2x USB-A 3.2 Gen 1, 1x USB-A 3.2 Gen 2, 4x USB 2.0 - Audio: Realtek HD, 7.1-channel, 3 audio jacks - BIOS: AMI UEFI, 256 Mbit flash - OS: Windows 11 / Windows 10 (64-bit)
Datasheet
| Form Factor | mATX |
|---|---|
| Chipset | AMD B840 |
| CPU Type | AMD Socket AM5, support for: AMD RyzenTM 9000 Series Processors/ AMD RyzenTM 8000 Series Processors/ AMD RyzenTM 7000 Series Processors (Go to GIGABYTE's website for the latest CPU support list.) |
| Lan | Realtek® 2.5GbE LAN chip (2.5 Gbps/1 Gbps/100 Mbps) |
| USB | CPU: – 1 x USB Type-C® port on the back panel, with USB 3.2 Gen 1 support – 2 x USB 3.2 Gen 1 ports on the back panel CPU+USB 2.0 Hub: – 4 x USB 2.0/1.1 ports on the back panel Chipset: – 1 x USB Type-C® port with USB 3.2 Gen 1 support, available through the internal USB header – 1 x USB 3.2 Gen 2 Type-A port (red) on the back panel – 2 x USB 3.2 Gen 1 ports available through the internal USB header – 4 x USB 2.0/1.1 ports available through the internal USB headers |
| Bios | 1 x 256 Mbit flash Use of licensed AMI UEFI BIOS PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0 |
| Audio | Realtek® Audio CODEC High Definition Audio 2/4/5.1/7.1-channel |
| Memory | Support for DDR5 8200(O.C) / 8000(O.C) / 7950(O.C) / 7900(O.C) / 7800(O.C) / 7600(O.C.) / 7400(O.C.) / 7200(O.C.) / 7000(O.C.) / 6800(O.C.) / 6600(O.C.) / 6400(O.C) / 6200(O.C) / 6000(O.C) / 5800(O.C) / 5600(O.C) / 5200 / 4800 / 4400 MT/s memory modules. 4 x DDR5 DIMM sockets supporting up to 256 GB (64 GB single DIMM capacity) of system memory Dual channel memory architecture Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modules Support for AMD EXtended Profiles for Overclocking (AMD EXPO™) and Extreme Memory Profile (XMP) memory modules (The CPU and memory configuration may affect the supported memory types, data rate (speed), and number of DRAM modules, please refer to "Memory Support List" on GIGABYTE's website for more information.) |
| H/W Monitoring | Voltage detection Temperature detection Fan speed detection Water cooling flow rate detection Fan fail warning Fan speed control |
| I/O Controller | iTE® I/O Controller Chip |
| Expansion Slots | 1 x PCI Express x16 slot (PCIEX16), integrated in the CPU: AMD Ryzen™ 9000/7000 Series Processors support PCIe 4.0 x16 mode AMD Ryzen™ 8000 Series-Phoenix 1 Processors support PCIe 4.0 x8 mode AMD Ryzen™ 8000 Series-Phoenix 2 Processors support PCIe 4.0 x4 mode * The PCIEX16 slot can only support a graphics card or an NVMe SSD. If only one graphics card is to be installed, be sure to install it in the PCIEX16 slot. Chipset: – 1 x PCI Express x16 slot, supporting PCIe 3.0 and running at x4 (PCIEX4) |
| Unique Features | Support for GIGABYTE Control Center (GCC) * Available applications in GCC may vary by motherboard model. Supported functions of each application may also vary depending on motherboard specifications. Support for Q-Flash Support for Q-Flash Plus Support for Smart Backup |
| Onboard Graphics | Integrated Graphics Processor with AMD Radeon™ Graphics support: – 1 x DisplayPort, supporting a maximum resolution of 3840×2160@144 Hz * Support for DisplayPort 1.4 version and HDR. – 1 x HDMI port, supporting a maximum resolution of 4096×2160@60 Hz * Support for HDMI 2.1 version, HDCP 2.3, and HDR. ** Support for native HDMI 2.1 TMDS compatible ports. (Graphics specifications may vary depending on CPU support.) |
| Operating System | Support for Windows 11 64-bit Support for Windows 10 64-bit |
| Storage Interface | 1 x M.2 connector (M2A_CPU), integrated in the CPU, supporting Socket 3, M key, type 2580/2280 SSDs: AMD Ryzen™ 9000/7000 Series Processors support PCIe 4.0 x4/x2 SSDs AMD Ryzen™ 8000 Series-Phoenix 1 Processors support PCIe 4.0 x4/x2 SSDs AMD Ryzen™ 8000 Series-Phoenix 2 Processors support PCIe 4.0 x4/x2 SSDs 1 x M.2 connector (M2B_CPU), integrated in the CPU, supporting Socket 3, M key, type 22110/2280 SSDs: AMD Ryzen™ 9000/7000 Series Processors support PCIe 4.0 x4/x2 SSDs AMD Ryzen™ 8000 Series-Phoenix 1 Processors support PCIe 4.0 x4/x2 SSDs AMD Ryzen™ 8000 Series-Phoenix 2 Processors support PCIe 4.0 x2 SSDs 4 x SATA 6Gb/s connectors RAID 0, RAID 1, RAID 5, and RAID 10 support for NVMe SSD storage devices * RAID 5 is only available on AMD Ryzen™ 9000 Series Processors. RAID 0, RAID 1, and RAID 10 support for SATA storage devices |
| Back Panel Connectors | 1 x DisplayPort* 1 x HDMI port* 1 x PS/2 keyboard/mouse port 1 x Q-Flash Plus button 4 x USB 2.0/1.1 ports 2 x USB 3.2 Gen 1 ports 1 x USB 3.2 Gen 2 Type-A port (red) 1 x USB Type-C® port, with USB 3.2 Gen 1 support 1 x RJ-45 port 2 x antenna connectors (2T2R) 3 x audio jacks * Actual support may vary by CPU |
| Internal I/O Connectors | 1 x 24-pin ATX main power connector1 x 8-pin ATX 12V power connector1 x CPU fan header1 x CPU fan/water cooling pump header3 x system fan headers1 x system fan/water cooling pump header3 x addressable RGB Gen2 LED strip headers1 x RGB LED strip header2 x M.2 Socket 3 connectors4 x SATA 6Gb/s connectors1 x front panel header1 x front panel audio header1 x USB Type-C® header, with USB 3.2 Gen 1 support1 x USB 3.2 Gen 1 header2 x USB 2.0/1.1 headers1 x Trusted Platform Module header (For the GC-TPM2.0 SPI/GC-TPM2.0 SPI 2.0/GC-TPM2.0 SPI V2 module only)1 x reset button1 x reset jumper1 x Clear CMOS jumper |
| Wireless Communication Module | Realtek® Wi-Fi 6E RTL8852CE – WIFI a, b, g, n, ac, ax, supporting 2.4/5/6 GHz carrier frequency bands – BLUETOOTH 5.3 – Support for 11ax 160MHz wireless standard (Actual data rate may vary depending on environment and equipment.) |
