
- Model:B860M K
- Supports Intel Core Ultra (Series 2) CPUs
- Intel B860, LGA1851 socket, Micro ATX
- 2 x DDR5 DIMMs, up to 8800 MT/s OC
- PCIe 4.0 x16, GbE LAN, HDMI, USB 3.2 Gen 1
- 3 Years Warranty from Gigabyte
Overview
The Gigabyte B860M K is a Micro ATX motherboard built on the Intel B860 Express chipset with an LGA1851 socket. It supports Intel Core Ultra processors (Series 2) and is part of Gigabyte's Ultra Durable (UD) range.
Power comes from a Hybrid 4+1+2 phases VRM design, with a UD power connector (24-pin ATX and 8-pin CPU with UD Solid Pin). Heatsinks cover the VRM and the chipset, and Smart Fan 6 offers PWM and DC fan control with customizable fan curves. Memory support is 2 x DDR5 DIMM sockets in dual channel, up to 128 GB, with DDR5 overclocking up to 8800 MT/s and the DDR5 XMP Booster feature.
Storage includes 2 x PCIe 4.0 x4 M.2 slots and 4 x SATA 6Gb/s connectors. Expansion consists of one PCIe 4.0 x16 slot and one PCIe 3.0 x1 slot. Networking is a Realtek GbE LAN with bandwidth management, and the board has HDMI output, Hi-Fi audio with high-end audio capacitors and Audio Noise Guard, and 2 x addressable RGB headers.
DIY-friendly features include PCIe EZ-Latch, the EZ-Debug Zone with debug LEDs, a DRAM installation indicator, UC BIOS with Q-Flash and Q-Flash Auto Scan, and AI Perfdrive.
- 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
- Next Generation Storage: 2*PCIe 4.0 x4 M.2 Connectors
- Fast Networking: GbE LAN
- Extended Connectivity: HDMI
Specifications
- CPU
- LGA1851 socket: Support for Intel® Core™ Ultra Processors (Go to GIGABYTE's website for the latest CPU support list.) L3 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 modules 2 x DDR5 DIMM sockets supporting up to 128 GB (64 GB single DIMM capacity)of system memory Dual channel memory architecture Support 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 modules Support for Extreme Memory Profile (XMP) memory modules (The CPU and memory configuration may affect the supported memory types, datarate (speed), and number of DRAM modules, please refer to "Memory Support List" on GIGABYTE's website for more information.)
- 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 CODEC High Definition Audio 2/4/5.1/7.1-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
- LAN
- Realtek® GbE LAN chip (1 Gbps/100 Mbps/10 Mbps)
- Expansion Slots
- CPU: 1 x PCI Express x16 slot, supporting PCIe 4.0 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 3.0 and running at x1 (PCIEX1)
- Storage Interface
- Chipset: 2 x M.2 connector (Socket 3, M key, type 2280 PCIe 4.0 x4/x2 SSD support) 4 x SATA 6Gb/s connectors RAID 0, RAID 1, RAID 5, and RAID 10 support for SATA storage devices
- 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 panel Chipset+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 connector 1 x 8-pin ATX 12V power connectors 1 x CPU fan header 1 x CPU fan/water cooling pump header 1 x system fan/water cooling pump header 2 x addressable RGB Gen2 LED strip headers 2 x M.2 Socket 3 connectors 4 x SATA 6Gb/s connectors 1 x front panel header 1 x front panel audio header 1 x S/PDIF Out header 1 x USB 3.2 Gen 1 header 2 x USB 2.0/1.1 headers 1 x Trusted Platform Module header (For the GC-TPM2.0 SPI V2 module only) 1 x serial port header j 1 x Clear CMOS jumper
- Back Panel Connectors
- 1 x PS/2 keyboard/mouse port 1 x HDMI port 4 x USB 3.2 Gen 1 ports 2 x USB 2.0/1.1 ports 1 x RJ-45 port 3 x audio jacks Actual support may vary by CPU.
- I/O Controller
- iTE® I/O Controller Chip
- H/W Monitoring
- Voltage detection Temperature detection Fan speed detection Water cooling flow rate detection Fan fail warning Fan speed control Whether the fan (pump) speed control function is supported will depend on the fan (pump) you install.
- 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
- 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 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-bit Support for Windows 10 64-bit The Intel® NPU driver and Intel® 800 Platform Performance Package Installer are only supported on Windows 11.
- Form Factor
- Micro ATX Form Factor; 24.4cm x 21.5cm
Warranty
3 Years manufacturer warranty from Gigabyte. Warranty service is provided by the brand's authorised service centre under the brand's own terms; keep the original invoice and the serial number for any claim, and we will guide you through the process. Details are in our Warranty Policy.






