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Motherboards

B860M H

Model B860M H

Intel B860 Express Micro ATX motherboard for Socket LGA1851 processors, with 2 DDR5 slots (up to 128 GB) and 2.5 GbE LAN.

Socket
LGA1851
Chipset
Intel B860 Express
Form factor
Micro ATX
Memory
2 x DDR5, up to 128 GB
LAN
2.5 GbE
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Overview Specifications Media Platform and pairing Support
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Overview

Highlights

  • Supports Intel Core Ultra processors (Series 2)
  • Hybrid 4+1+2 phases VRM solution
  • D5 Bionic Corsa for Infinite Memory Performance
  • AI Perfdrive: Provides optimal and customized BIOS preset profile for users
  • EZ-Latch: PCIe x16 Slot with Quick Release Design
  • Friendly UI: Multi-Theme, AIO Fan Control, and Q-Flash Auto Scan in BIOS and SW

Platform

Socket
LGA1851
Chipset
Intel B860
Form factor
Micro ATX 24.4 x 21.5 cm
Memory
DDR5
  • 2 DIMM slots
  • Up to 128 GB
  • Up to 8800 MT/s (OC)
Dual channel
Processor support
  • Intel Core Ultra processors
Storage
2 x M.2
  • 4 x SATA 6Gb/s
Fastest M.2 slot: PCIe 4.0 x4
LAN
  • Realtek 2.5GbE LAN
Wireless
Not included
Display outputs
1 x HDMI For processors with integrated graphics
Power inputs
  • 24-pin ATX
  • 1 x 8-pin ATX 12V

At a glance

Platform
Intel
Socket
LGA1851
Chipset
B860
Form factor
Micro ATX
Memory
DDR5
Series
Ultra Durable
Full specifications

Specifications

Platform

CPU
LGA1851 socket: Support for Intel Core Ultra ProcessorsL3 cache varies with CPU
Chipset
Intel B860 Express Chipset
Memory
Support for DDR5 8800(O.C) / 8600(O.C) / 8400(O.C) / 8266(O.C) / 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.) /6400/5600 MT/s memory modules2 x DDR5 DIMM sockets supporting up to 128 GB (64 GB single DIMM capacity) of system memoryDual channel memory architectureSupport 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 modulesSupport for 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.)

Graphics and audio

Onboard graphics
Integrated Graphics Processor-Intel HD Graphics support:, 1 x HDMI port, supporting a maximum resolution of 4096x2160@60 Hz* Support for HDMI 2.1 version and HDCP 2.3.(Graphics specifications may vary depending on CPU support.)
Audio
Realtek Audio CODECHigh Definition Audio2/4/5.1/7.1-channel* You can change the functionality of an audio jack using the audio software. To configure 7.1-channel audio, access the audio software for audio settings.Support for S/PDIF Out

Networking

LAN
Realtek 2.5GbE LAN chip (2.5 Gbps/1 Gbps/100 Mbps)

Expansion and storage

Expansion slots
CPU:, 1 x PCI Express x16 slot, supporting PCIe 5.0 and running at x16 (PCIEX16)* The PCIEX16 slot can only support a graphics card or an NVMe SSD.Chipset:, 1 x PCI Express x1 slot, supporting PCIe 4.0 and running at x1 (PCIEX1)
Storage interface
Chipset:, 2 x M.2 connectors (Socket 3, M key, type 2280 PCIe 4.0 x4/x2 SSD support) (M2Q_SB, M2N_SB) 4 x SATA 6Gb/s connectorsRAID 0, RAID 1, RAID 5, and RAID 10 support for SATA storage devices

Ports and connectors

USB
Chipset:, 6 x USB 3.2 Gen 1 ports (4 ports on the back panel, 2 ports available through the internal USB header) 2 x USB 2.0/1.1 ports on the back panelChipset+USB 2.0 Hub:, 4 x USB 2.0/1.1 ports available through the internal USB headers
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 header1 x system fan/water cooling pump header2 x addressable RGB Gen2 LED strip headers2 x M.2 Socket 3 connectors4 x SATA 6Gb/s connectors1 x front panel header1 x front panel audio header1 x S/PDIF Out header1 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 V2 module only)1 x serial port header1 x Clear CMOS jumper
Back panel connectors
2 x USB 2.0/1.1 ports1 x PS/2 keyboard/mouse port1 x HDMI port*4 x USB 3.2 Gen 1 ports1 x RJ-45 port3 x audio jacks
I/O controller
iTE I/O Controller Chip

Firmware and software

H/W monitoring
Voltage detectionTemperature detectionFan speed detectionWater cooling flow rate detectionFan fail warningFan speed control* Whether the fan (pump) speed control function is supported will depend on the fan (pump) you install.
BIOS
1 x 256 Mbit flashUse of licensed AMI UEFI BIOSPnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0
Unique features
Support for GIGABYTE Control Center (GCC)Support for Q-FlashSupport for Smart Backup
Bundled software
Norton Internet Security (OEM version)LAN bandwidth management software* Service discontinued as a result of contract termination by the software provider.
Operating system
Support for Windows 11 64-bitSupport for Windows 10 64-bit* The Intel NPU driver and Intel 800 Platform Performance Package Installer are only supported on Windows 11.

Board

Form factor
Micro ATX Form Factor; 24.4cm x 21.5cm

Specifications are taken from the manufacturer's published information and may change. Confirm critical values with our sales desk before ordering.

GIGABYTE product page

Media

Photos 4

Downloads

Official information

GIGABYTE product page for B860M H gigabyte.com

Platform and pairing

Processor and memory

Supplied by brand rather than listed by model. Name the part you need in your enquiry.

Graphics cards

A spread of current cards, from top tier to entry level. Each card page lists its length and recommended power supply.

All 68 graphics cards

Power supplies

Ratings from 400 W to 3000 W. This board's power inputs: 24-pin ATX and 1 x 8-pin ATX 12V. Size the supply to the recommended PSU of the graphics card you fit.

All 229 power supplies

CPU coolers for LGA1851

Coolers whose specifications list socket LGA1851.

All 8 CPU coolers
  • GIGABYTE GP-GIGABYTE GME 240

    GIGABYTE

    GAMING 240

    GP-GIGABYTE GME 240

    • 240 mm
    • 2 x 120 mm
    • Intel 1851/1700/115X/1200, AMD AM5/AM4
    View details
  • GIGABYTE GP-GIGABYTE GME 240I

    GIGABYTE

    GAMING 240 ICE

    GP-GIGABYTE GME 240I

    • 240 mm
    • 2 x 120 mm
    • Intel 1851/1700/115X/1200, AMD AM5/AM4
    View details
  • GIGABYTE GP-GIGABYTE EAGLE 360

    GIGABYTE

    EAGLE 360

    GP-GIGABYTE EAGLE 360

    • 360 mm
    • 3 x 120 mm
    • Intel 1851/1700/115X/1200, AMD AM5/AM4
    View details

Cabinets for Micro ATX boards

Cabinets whose specifications list Micro ATX motherboard support.

All 10 cabinets

Parts to plan with this motherboard

Check sockets, memory type, power connectors and dimensions against the specifications before ordering, or ask our sales desk to confirm a build.

Support

Warranty and repairs

Warranty is as per GIGABYTE’s terms for this model. For products bought from us, call our service team with the invoice number, the model and the product’s serial number.

From GIGABYTE

Practical notes

  1. Update the BIOS only from the official support page, following the brand’s instructions.
  2. Check the CPU support list for the BIOS version before buying a processor.
  3. Install chipset, LAN and audio drivers from the official support page.

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Pairs with

GIGABYTE B860M H 1 / 4