Model
B860M K 1.0
Socket
LGA 1851
Memory
2x DDR5
M.2 Slots
(2) Slots
GIGABYTE B860M K 1.0
If you are planning to build an economical yet futuristic platform, powered by the latest Intel Core Ultra Series 2 processors, and aspire to achieve the fastest possible speeds for DDR5 memory that exceed all expectations, reaching up to 8800 MT/s, while providing all the essentials for stable performance like fast M.2 PCIe 4.0 slots, then the GIGABYTE B860M K motherboard is the Micro-ATX board that combines strong performance in a small form factor with advanced memory overclocking capabilities.
Features of the GIGABYTE B860M K 1.0 Motherboard
Support for processors and chip:
- Processor socket: LGA 1700, supports Intel Core Ultra processors (Series 2) and generations 14/13/12.
- Chipset: Intel B860 Express Chipset.
- Form Factor: Micro-ATX.
- Power Design (VRM): Hybrid VRM solution with 4+1+2 phases.
Memory (RAM) and Performance:
- Type and number of slots: 2 DIMM slots of DDR5 type (Dual Channel).
- Maximum capacity: Supports up to 96 GB (typically, the maximum capacity is not specified exactly, but it supports DIMMs with a capacity of 48 GB).
- Maximum supported speed: Supports overclocking speeds up to 8800 MT/s, with XMP support.
Storage and expansion slots:
- Main graphics card slot: 1 x PCI Express x16 (supports PCIe 4.0 speed).
- Other expansion slots: 1 x PCI Express x1 (supports PCIe 3.0).
- Fast storage slots (M.2):
- 2 x M.2 Connector, all of which support PCIe 4.0 x4 speed.
- SATA ports: 4 x SATA 6Gb/s.
Communication and Networks:
- Wired Network (LAN): GbE LAN (1 Gigabit Ethernet).
- Wireless network: No built-in Wi-Fi network available.
- Rear video ports: 1 x HDMI.
The GIGABYTE B860M K motherboard stands out as a high-value, future-ready platform, supporting the fastest DDR5 memory up to 8800 MT/s, and providing fast M.2 PCIe 4.0 storage slots, making it ideal for building compact and high-efficiency systems.

Specifications of the GIGABYTE B860M K 1.0 Motherboard
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
Operating System
Support for Windows 11 64-bit
Support for Windows 10 64-bit
* The Intel® NPU driver is only supported on Windows 11.
Form Factor
Micro ATX Form Factor; 24.4cm x 21.5cm
Specifications
| MotherBoard | |
|---|---|
| Socket | LGA 1851 |
| Memory Type | DDR5 |
| Internal I/O Connectors | Micro ATX |
| LAN | Realtek® 1GbE |
| LAN Speed | 1GbE |
| M.2 Slot1 | PCLe 4.0 |
| M.2 Slot2 | PCLe 4.0 |
| M.2 Slot3 | N/A |
| M.2 Slot4 | N/A |
| M.2 Slot5 | N/A |
| USB | USB 3.2 |
| Information | |
|---|---|
| Brand | Gigabyte |
| Warranty | Three Years |






