MB GIGABYTE S1851 B860M K GEN5 DDR5 BOX M-ATX

CPU

LGA1851 socket: Support for Intel® Core™ Ultra Processors

(Go to GIGABYTEs 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 / 6200 / 6000 / 5800 / 5600 MT/s

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, data rate (speed), and number of DRAM modules, please refer to Memory Support List on GIGABYTEs 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 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 3.0 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)

- 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 connector

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 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)

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