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ATX Intel B860 motherboard for supported LGA1851 Core Ultra processors, with four DDR5 DIMMs, two M.2 sockets, PCIe 5.0 x16 and 2.5GbE. Confirm PCB revision, CPU BIOS support and memory configuration before purchase.
R3,579.00
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GIGABYTE B860 DS3H · ATX
Build around LGA1851, four DDR5 sockets and an ATX layout that makes room for a graphics card, two NVMe drives and everyday peripherals. The B860 DS3H combines a CPU-connected PCIe 5.0 slot with 2.5GbE wired networking. Its expansion options are best chosen as a complete, revision-matched system.
Memory, planned properly
Use A2 and B2 for a matched two-module kit, or populate all four sockets when the validated configuration calls for it. Four 16 GB modules make 64 GB; the published 256 GB ceiling uses four supported 64 GB modules. The highest advertised memory rate is an overclocked reference, not a promise for every four-DIMM build.
Connections that matter
A rear 20 Gb/s USB-C port and 10 Gb/s USB-A port sit alongside HDMI, DisplayPort, four USB 2.0 connections and 2.5GbE networking. A compatible case can expose the internal 5 Gb/s USB-C header. This is the B860 DS3H: Wi-Fi and Bluetooth claims from the separate WIFI6E version do not belong to this listing.
Expansion with context
The CPU-connected top slot provides PCIe 5.0 x16 for a graphics card or NVMe SSD. The four other full-length connectors are each wired at PCIe 4.0 x1. Two M-key SSD sockets provide separate CPU Gen5 and chipset Gen4 paths, while four SATA ports support additional drives. Check card thickness, SSD dimensions and the exact revision manual before finalising a build.
Power and cooling
Connect both the 24-pin motherboard lead and the 8-pin CPU supply. Six fan or pump headers support the cooling layout, with separate addressable and conventional RGB connections. The manual’s 500 W-or-greater PSU guidance is a starting point for expansion planning; the selected CPU, graphics card and other devices determine the finished system’s requirement.
A considered setup
Check the PCB revision, choose the matching CPU and memory support lists, and follow the correct BIOS procedure. Q-Flash and Q-Flash Plus provide documented update routes. Display outputs rely on a suitable processor’s integrated graphics. The Downloads tab keeps revision-specific support pages together so drivers, utilities, manuals and BIOS can be selected for the actual board and operating system.
| Model | GIGABYTE B860 DS3H (non-WIFI model) |
|---|---|
| Product code | GA-B860-DS3H |
| Hardware revision | Confirm PCB REV marking before choosing BIOS; manufacturer provides revisions 1.0 and 1.1 |
| Socket | LGA1851 |
| Chipset | Intel B860 |
| Processor family | Intel Core Ultra desktop processors; exact CPU and required BIOS must appear in the matching revision support list |
| Form factor | ATX |
| Dimensions | 305 × 244 mm |
| DIMM sockets | 4 DDR5 slots |
|---|---|
| Channels | Dual channel; A1/A2 and B1/B2 |
| Maximum installed capacity | 256 GB, with supported 64 GB modules |
| Maximum single DIMM | 64 GB |
| One-module population | A2 or B2, as documented in the manual |
| Two-module population | A2 + B2 recommended |
| Four-module population | A1 + A2 + B1 + B2 |
| Capacity examples | 4 × 16 GB = 64 GB; 4 × 64 GB = 256 GB, subject to CPU, BIOS and exact module support |
| Published standard rates | DDR5-5600 and DDR5-6400 MT/s |
| Published overclocked ceiling | Up to DDR5-9066 MT/s (O.C.); not guaranteed with every CPU, module or four-DIMM population |
| Memory profiles | Intel XMP supported; select validated kits |
| Unbuffered non-ECC types | 1Rx8, 2Rx8 and 1Rx16 |
| ECC-labelled module caveat | Supported unbuffered 1Rx8/2Rx8 modules operate in non-ECC mode |
| Configuration dependency | Capacity, achievable data rate and DIMM count depend on processor, BIOS and the revision-specific memory support list |
| Primary expansion slot | PCIEX16: CPU-connected PCIe 5.0 x16, full-length |
|---|---|
| Primary-slot device restriction | Graphics card or NVMe SSD only; use this slot for a single graphics card |
| Additional expansion slots | 4 full-length physical slots, each PCIe 4.0 x1 electrically, chipset-connected |
| Primary M.2 | M2A_CPU: PCIe 5.0 x4/x2, Socket 3 M-key |
| Secondary M.2 | M2P_SB: chipset PCIe 4.0 x4/x2, Socket 3 M-key |
| Supported M.2 sizes | 25110 / 22110 / 2580 / 2280 for both connectors |
| SATA connectors | 4 SATA 6 Gb/s |
| SATA RAID | RAID 0 / 1 / 5 / 10 |
| Lane-sharing qualification | CPU and chipset connections are identified separately; no universal simultaneous full-bandwidth guarantee is made. Check the exact revision manual and planned expansion layout |
| Physical expansion clearance | Full-length connector shape does not imply x16 bandwidth; graphics-card thickness can cover adjacent slots |
| Rear display ports | 1 HDMI 2.1; 1 DisplayPort 2.1 |
|---|---|
| HDMI reference limit | 4096 × 2160 at 60 Hz; CPU graphics support required |
| DisplayPort revision 1.0 reference | 3840 × 2160 at 144 Hz; CPU graphics support required |
| DisplayPort revision 1.1 reference | 4096 × 2304 at 60 Hz; CPU graphics support required |
| CPU graphics dependency | Motherboard video outputs require a processor with supported integrated graphics |
| Wired networking | Realtek 2.5GbE, supporting 2.5 Gb/s, 1 Gb/s and 100 Mb/s |
| Wireless networking | No integrated Wi-Fi/Bluetooth promised for this non-WIFI model; manual marks wireless functions as WIFI6E-only |
| Audio | Realtek HD Audio CODEC; 2/4/5.1/7.1-channel modes |
| Audio connections | 3 rear audio jacks; front audio and S/PDIF Out headers |
| Multichannel audio | Jack reassignment/audio software configuration required for applicable multichannel modes |
| Rear USB-C | 1 USB 3.2 Gen 2x2, up to 20 Gb/s |
|---|---|
| Rear high-speed USB-A | 1 USB 3.2 Gen 2, up to 10 Gb/s |
| Rear USB 2.0 | 4 Type-A ports |
| Internal front USB-C | 1 USB 3.2 Gen 1 header, up to 5 Gb/s |
| Internal front USB-A | 1 USB 3.2 Gen 1 header supplying 2 ports, up to 5 Gb/s |
| Internal USB 2.0 | 2 headers supplying up to 4 ports |
| Legacy rear connector | 1 PS/2 keyboard/mouse port |
| Main power | 1 × 24-pin ATX |
|---|---|
| Processor power | 1 × 8-pin ATX 12 V |
| CPU cooling headers | 1 CPU fan; 1 CPU fan/water-pump header |
| System cooling headers | 2 system-fan and 2 system-fan/water-pump headers |
| Addressable lighting | 3 addressable RGB Gen2 headers |
| Conventional lighting | 1 RGB LED-strip header |
| Case connections | Front-panel switch/LED and front audio headers |
| Other headers | S/PDIF Out, serial and revision-matched SPI TPM module header |
| Maintenance controls | Q-Flash Plus button; reset and Clear CMOS jumpers |
| Status indicators | CPU / DRAM / VGA / BOOT indicators documented in the GIGABYTE manual |
| Power design reference | 8+1+2 hybrid VRM, manufacturer model overview |
| PSU planning | Manual recommends 500 W or greater for expansion requirements; size the actual PSU for the complete CPU/GPU/storage/fan system |
| Board power consumption | No measured whole-board wattage supplied in reviewed sources; not inferred from PSU or VRM ratings |
| Firmware type | AMI UEFI; 256 Mbit flash |
|---|---|
| BIOS update tools | Q-Flash and Q-Flash Plus; use exact model and PCB revision instructions |
| Control software | GIGABYTE Control Center; available functions depend on model |
| Documented operating systems | Windows 11 64-bit and Windows 10 64-bit; individual driver applicability varies |
| NPU driver | Windows 11 only in the manufacturer support listing |
| Local warranty wording | Existing Matzotech listing states 3 years; local terms and eligibility apply |
Reference specifications distinguish B860 DS3H revisions 1.0 and 1.1; supplied stock revision and installed BIOS are not confirmed. Check exact CPU, DIMM kit, card clearance and power requirements before building. Components pictured separately are not included.
Use official support resources for this product. Each link opens in a new tab.
Official B860 DS3H support for this PCB revision. Match the printed revision and select the correct operating system, CPU/memory support list, manual, driver or BIOS instructions. Do not use files for a different revision.
Open official support (opens in a new tab)Official B860 DS3H support for this PCB revision. Match the printed revision and select the correct operating system, CPU/memory support list, manual, driver or BIOS instructions. Do not use files for a different revision.
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