Gigabyte B860M H DDR5 M-ATX Motherboard
MPN B860M-H · Brand GIGABYTE · mATX
GIGABYTE B860M H is a Micro-ATX motherboard for LGA1851 Intel Core Ultra (Series 2) processors, featuring DDR5 up to 8800 MT/s OC, PCIe 5.0, dual M.2 Gen4, and 2.5GbE LAN
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Overview
The GIGABYTE B860M H is a Micro-ATX motherboard built on Intel's B860 chipset and fitted with the LGA1851 socket, making it compatible with Intel Core Ultra processors (Series 2). Its compact form factor suits space-conscious builds without compromising on platform capability, supporting PCIe 5.0 on the primary x16 slot for current-generation graphics cards and NVMe storage. Memory performance is handled through two DDR5 DIMM slots in a dual-channel configuration, capable of accommodating up to 128 GB of system memory (64 GB per slot). The board supports non-ECC unbuffered DDR5 starting at 5600 MT/s and extending up to 8800 MT/s via overclocking profiles, as well as ECC unbuffered DIMMs operating in non-ECC mode and XMP memory modules. GIGABYTE's D5 Bionic Corsa technology targets stable, high-throughput memory performance across these speeds. Storage connectivity comes from two M.2 Socket 3 connectors both wired at PCIe 4.0 x4, complemented by four SATA 6 Gb/s ports for traditional drives. Network connectivity is provided by a 2.5 GbE LAN port on the rear I/O, alongside four USB 3.2 Gen 1 ports, two USB 2.0/1.1 ports, a PS/2 keyboard/mouse port, three audio jacks, and a single HDMI output for integrated graphics. Internal expansion includes a PCIe 4.0 x1 slot from the chipset, two addressable RGB Gen 2 LED strip headers, a USB 3.2 Gen 1 internal header, two USB 2.0/1.1 internal headers, an S/PDIF out header, a TPM header (for GC-TPM2.0 SPI V2), a serial port header, and dedicated fan and pump headers. The EZ-Latch mechanism on the PCIe x16 slot simplifies GPU installation and removal. BIOS usability is addressed through AI Perfdrive, which generates optimised preset profiles, Q-Flash Auto Scan for streamlined firmware updates, multi-theme support, and integrated AIO fan control. The VRM is configured in a Hybrid 4+1+2 phase arrangement. GIGABYTE provides a three-year warranty on this product. Key Specifications: - Socket: LGA1851 - Chipset: Intel B860 - Form Factor: Micro-ATX - Memory: 2x DDR5 DIMM, dual-channel, up to 128 GB, DDR5 5600–8800 MT/s (OC) - Primary Slot: 1x PCIe 5.0 x16 (CPU) - Secondary Slot: 1x PCIe 4.0 x1 (Chipset) - Storage: 2x M.2 PCIe 4.0 x4, 4x SATA 6 Gb/s - Rear Networking: 2.5 GbE LAN - Rear USB: 4x USB 3.2 Gen 1, 2x USB 2.0/1.1 - Video Output: 1x HDMI - Warranty: 3 Years
Datasheet
| Warranty | 3 Years |
|---|---|
| Form Factor | mATX |
| Chipset | B860 |
| Socket | LGA1851 |
| Memory Type | DDR5 |
| CPU Type | 14th Gen,13th Gen,12th Gen,Pentium,Celeron |
| Max Memory | 128 GB |
| Memory Speed | up to 8800+ |
| Platform | INTEL |
| Graphics Port | 1x HDMI |
| Memory Feature | 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.) |
| 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) |
| Channel Supported | Dual Channel |
| Back Panel I/O Ports | 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 * Actual support may vary by CPU |
| Internal I/O Connector | 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 |




