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GIGABYTE B840M DS3H Motherboard - AMD Ryzen 9000 CPUs, 8+2+2 Phases VRM, up to 8200MHz DDR5, 2xPCIe 4.0 M.2, 2.5GbE LAN, USB 3.2 Gen 1

GIGABYTE B840M DS3H Motherboard - AMD Ryzen 9000 CPUs, 8+2+2 Phases VRM, up to 8200MHz DDR5, 2xPCIe 4.0 M.2, 2.5GbE LAN, USB 3.2 Gen 1
GIGABYTE B840M DS3H Motherboard - AMD Ryzen 9000 CPUs, 8+2+2 Phases VRM, up to 8200MHz DDR5, 2xPCIe 4.0 M.2, 2.5GbE LAN, USB 3.2 Gen 1
GIGABYTE B840M DS3H Motherboard - AMD Ryzen 9000 CPUs, 8+2+2 Phases VRM, up to 8200MHz DDR5, 2xPCIe 4.0 M.2, 2.5GbE LAN, USB 3.2 Gen 1
GIGABYTE B840M DS3H Motherboard - AMD Ryzen 9000 CPUs, 8+2+2 Phases VRM, up to 8200MHz DDR5, 2xPCIe 4.0 M.2, 2.5GbE LAN, USB 3.2 Gen 1
36 mo.
GIGABYTE B840M DS3H Motherboard - AMD Ryzen 9000 CPUs, 8+2+2 Phases VRM, up to 8200MHz DDR5, 2xPCIe 4.0 M.2, 2.5GbE LAN, USB 3.2 Gen 1
GIGABYTE B840M DS3H Motherboard - AMD Ryzen 9000 CPUs, 8+2+2 Phases VRM, up to 8200MHz DDR5, 2xPCIe 4.0 M.2, 2.5GbE LAN, USB 3.2 Gen 1
GIGABYTE B840M DS3H Motherboard - AMD Ryzen 9000 CPUs, 8+2+2 Phases VRM, up to 8200MHz DDR5, 2xPCIe 4.0 M.2, 2.5GbE LAN, USB 3.2 Gen 1
GIGABYTE B840M DS3H Motherboard - AMD Ryzen 9000 CPUs, 8+2+2 Phases VRM, up to 8200MHz DDR5, 2xPCIe 4.0 M.2, 2.5GbE LAN, USB 3.2 Gen 1
R2,422
The GIGABYTE B840M DS3H is a Micro ATX motherboard with an AMD B840 chipset and Socket AM5, designed to support AMD Ryzen 9000 series processors. It offers an 8+2+2 phase VRM, four DDR5 memory slots supporting up to 256 GB and speeds up to 8200 MHz, two PCIe 4.0 M.2 slots, SATA III interfaces and a ... Read More
Stock 24 Code 106402 Brand GIGABYTE Model B840M DS3H Warranty 3 Years

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The GIGABYTE B840M DS3H is a Micro ATX motherboard with an AMD B840 chipset and Socket AM5, designed to support AMD Ryzen 9000 series processors. It offers an 8+2+2 phase VRM, four DDR5 memory slots supporting up to 256 GB and speeds up to 8200 MHz, two PCIe 4.0 M.2 slots, SATA III interfaces and a single PCIe x16 slot. Onboard connectivity includes 2.5GbE LAN and USB 3.2 Gen 1 ports, making this board suitable for performance-oriented PC builds that require modern interfaces and reliable power delivery.

Advantages

The motherboard combines AM5 compatibility with DDR5 support and a robust VRM design to provide stable performance for gaming, content creation and professional workloads. Compact Micro ATX form factor allows building space-efficient systems while retaining high-speed storage via dual PCIe 4.0 M.2 slots and fast network connectivity through onboard 2.5GbE. Multiple USB and SATA III ports ensure flexible peripheral and storage expansion.

Suitable for

  • Gaming systems with AMD Ryzen 9000 processors
  • Content creation and video editing workstations
  • Home and office PCs requiring fast LAN and NVMe storage
  • Compact builds where Micro ATX size is preferred

Key specifications

  • Form factor: Micro ATX
  • Chipset: AMD B840
  • Socket: AM5 (supports AMD Ryzen 9000)
  • Power design: 8+2+2 phases VRM
  • Memory: 4 × DDR5 slots, up to 256 GB, up to 8200 MHz
  • Storage: 2 × PCIe 4.0 M.2 slots, SATA III ports
  • Expansion: 1 × PCIe x16 slot
  • Network: 2.5GbE LAN
  • USB: USB 3.2 Gen 1 ports
  • Weight: 1.047 kg

How to use

Install the AM5-compatible CPU and DDR5 modules into their respective sockets and slots, mount the motherboard into a Micro ATX case using the included standoffs, and connect power from a compatible PSU to the 24-pin ATX and CPU power headers. Attach storage devices to the M.2 slots or SATA III ports, install a graphics card into the PCIe x16 slot if required, and connect front-panel, USB and LAN cables. After assembly, enter the BIOS to configure memory profiles, boot order and other system settings before installing the operating system.

Recommendations

For stable high-frequency DDR5 operation and demanding workloads, use a quality power supply and follow proper cooling practices. Keep the BIOS updated for best CPU and memory compatibility with AMD Ryzen 9000 processors.
Key Highlights
  • X3D Turbo Mode to unleash new era gaming performance
  • AMD Socket AM5 : Supports AMD Ryzen 9000 / 8000 / 7000 Series Processors
  • Digital 8+2+2 phases VRM solution
  • Dual Channel DDR5 : 4*DIMMs with AMD EXPO Memory Module Support
  • 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
  • Ultra-Fast Storage : 2*M.2 slots, including 1* PCIe 4.0 x4
  • Fast Networking : 2.5GbE LAN
  • AMD Socket AM5 AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
  • PC micro ATX AMD B840 Realtek ALC897 7.1 channels
  • DDR5-SDRAM 4 DIMM Maximum internal memory: 256 GB
  • HDD & SSD M.2, PCI Express 4.0, SATA III RAID support Number of storage drives supported: 6
  • BIOS type: UEFI AMI 256 Mbit ACPI version: 5.0 Clear CMOS jumper
  • 2.5 Gigabit Ethernet
Specifications
1st M.2 highest PCI Express generation
4.0
1st M.2 largest key size
2580
2nd M.2 highest PCI Express generation
4.0
2nd M.2 largest key size
25110
ACPI version
5.0
ATX Power connector (24-pin)
Yes
Audio chip
Realtek ALC897
Audio output channels
7.1 channels
Batteries included
Yes
Battery technology
Lithium-Manganese Dioxide (LiMnO2)
Battery type
CR2032
Battery weight
3 g
BIOS memory size
256 Mbit
BIOS type
UEFI AMI
Bundled software
Norton® Internet Security (OEM version) LAN bandwidth management software
Clear CMOS jumper
Yes
Compatible processor series
AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Component for
PC
Cooling type
Passive
CPU fan connector
Yes
Depth
244 mm
Desktop Management Interface (DMI) version
2.7
DirectX version
12.0
DisplayPort version
1.4
DisplayPorts quantity
2
DVI-D ports quantity
0
ECC сompatibility
Non-ECC
EPS power connector (8-pin)
Yes
Ethernet interface type
2.5 Gigabit Ethernet
Ethernet LAN
Yes
Ethernet LAN (RJ-45) ports
1
Front panel audio connector
Yes
Front panel connector
Yes
HDCP
Yes
HDMI ports quantity
1
HDMI version
2.1
Headphone outputs
1
Height
35 mm
LAN controller
Realtek RTL8125
Line-in
Yes
Lithium weight per battery
0.07 g
Maximum internal memory
256 GB
Maximum internal memory per slot
64 GB
Maximum resolution
4096 x 2160 pixels
Memory channels
Dual-channel
Memory slots type
DIMM
Microphone in
Yes
Motherboard chipset
AMD B840
Motherboard chipset family
AMD
Motherboard form factor
micro ATX
Number of battery cells
1
Number of chassis fan connectors
2
Number of CPU fan connectors
2
Number of EPS power connectors (8-pin)
1
Number of HDDs supported
4
Number of M.2 (M) slots
2
Number of memory slots
4
Number of RGB LED pin headers
3
Number of SATA III connectors
4
Number of storage drives supported
6
Number of water pump connectors
2
Package depth
265 mm
Package height
54 mm
Package weight
1.13 kg
Package width
265 mm
Parallel processing technology support
Not supported
PC health monitoring
Fan, Temperature, Voltage, Water cooling
PCI Express x16 (Gen 3.x) slots
1
PCI Express x16 (Gen 4.x) slots
1
Power source type
ATX
Processor manufacturer
AMD
Processor socket
Socket AM5
Product colour
Dark brown
Products per shipping (inner) case
1 pc(s)
PS/2 ports quantity
1
RAID levels
0, 1, 10
RAID support
Yes
RGB LED pin header
Yes
Screws included
Yes
Supported memory clock speed (max)
8200 MHz
Supported memory clock speeds
8200,8000,7950,7900,7800,7600,7400,7200,7000,6800,6666,6600,6400,6200,6000,5600,5200,4800,4400 MHz
Supported memory types
DDR5-SDRAM
Supported processor sockets
Socket AM5
Supported storage drive interfaces
M.2, PCI Express 4.0, SATA III
Supported storage drive types
HDD & SSD
System Management BIOS (SMBIOS) version
2.7
TPM connector
Yes
Unbuffered memory
Yes
USB 2.0 connectors
2
USB 2.0 ports quantity
4
USB 3.2 Gen 1 (3.1 Gen 1) connectors
2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
2
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity
1
USB 3.2 Gen 2 (3.1 Gen 2) connectors
0
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity
0
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity
0
VGA (D-Sub) ports quantity
0
Warranty period
3 year(s)
Weight
1.05 kg
Wi-Fi
No
Width
244 mm
Windows operating systems supported
Windows 10 x64, Windows 11 x64

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Price history over the last 6 months
GIGABYTE B840M DS3H Motherboard - AMD Ryzen 9000 CPUs, 8+2+2 Phases VRM, up to 8200MHz DDR5, 2xPCIe 4.0 M.2, 2.5GbE LAN, USB 3.2 Gen 1
Current
R2,422
Lowest
R2,110
Highest
R2,440
Change 24H
+R160   +7%
Week
+R184   +8%
Month
+R176   +8%

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