| 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 |
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| Chipset | Intel B860 Express Chipset |
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| 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) |
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| 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.) |
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| 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 |
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| LAN | Realtek GbE LAN chip (1 Gbps/100 Mbps/10 Mbps) |
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| 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) |
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| 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 |
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| 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 |
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| 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) |
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| 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. |
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| I/O Controller | iTE I/O Controller Chip |
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| 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. |
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| 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 |
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| 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 |
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| Bundle Software | Norton Internet Security (OEM version) | LAN bandwidth management software | * Service discontinued as a result of contract termination by the software provider. |
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| 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. |
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| Form Factor | Micro ATX Form Factor; 24.4cm x 21.5cm |
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| Model | B860M K |
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