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B550M K (Rev. 1.2)

Rev. 1.2Rev. 1.0Rev. 1.1
AMD B550 Chipset
主な特徴仕様サポートフォトギャラリーWhere to Buy
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マザーボード - B550M K
AMD B550 Ultra Durable Motherboard with Digital VRM Solution, PCIe 4.0 x16 Slot, Dual PCIe 4.0/3.0 M.2 Connectors, GbE LAN, Smart Fan 6 with FAN STOP

  • Supports AMD Ryzen™ 5000 Series/ Ryzen™ 5000 G-Series/ Ryzen™ 4000 G-Series and Ryzen™ 3000 and Ryzen™ 3000 G-Series Processors
  • Dual Channel ECC/ Non-ECC Unbuffered DDR4, 4 DIMMs
  • Ultra Durable™ PCIe 4.0 Ready x16 Slot
  • Dual Ultra-Fast NVMe PCIe 4.0/3.0 M.2 Connectors
  • High Quality Audio Capacitors and Audio Noise Guard for Ultimate Audio Quality
  • Fast Networks：GbE LAN Rear DisplayPort and HDMI for Multi-display Support
  • Smart Fan 6: Features Multiple Temperature Sensors, Hybrid Fan Headers with FAN STOP
  • Anti-Sulfur Resistors Design

主な特徴

SPEC OVERVIEW
PERFORMANCE
CONNECTIVITY
COOLING
AUDIO
ULTRA DURABLE
SPEC OVERVIEW
PERFORMANCE
CONNECTIVITY
COOLING
AUDIO
ULTRA DURABLE
1
Solid Pin Power Connector
2
USB 2.0*4
3
DisplayPort + HDMI
4
USB 3.2 Gen 1* 4
5
GbE LAN
6
Ultra Durable PCIe Slot
  1. PCIe® 4.0 Slot
  2. Running 1 x16
7
Audio Noise Guard
8
High-End Audio Capacitors
9
Dual Channel DDR4, 4 DIMMs
10
Supports AMD Ryzen™ Processors
11
Dual M.2 Connectors
1. 2280 M.2
  1. NVMe PCIe® 4.0/3.0 x4 & SATA Mode (from CPU)
  2. 1x PCIe 4.0® M.2 Slot
2. 2280 M.2
  1. NVMe PCIe 3.0 x2 (from Chipset)
12
SATA3*4
13
Smart Fan 6 + FAN STOP
  1. 2 Fan Connectors
  2. 5 Temperature Sensors
PERFORMANCE
PCIe 4.0* Hardware Design
* Photo for reference only.
1. PCIe 4.0 Slot
PCIe 4.0 x16 slot with faster bandwidth and lower impedance.
2. M.2 PCIe 4.0 Slot
M.2 PCIe 4.0 x4 slot with Lower impedance.
CONNECTIVITY
Dual NVMe PCIe 4.0*/3.0 M.2 Connectors
With NVMe PCIe 4.0*/3.0 x4 and PCIe 3.0 x2 M.2 connectors onboard, GIGABYTE Motherboards bring users to experience NVMe mode or SATA mode connectivity for M.2 SSD devices. Delivering up to 64 Gb/s data transfer speed, the dual M.2 connectors design provides an ideal storage solution while also supporting in RAID modes.

*Actual support may vary by CPU.



GbE LAN
Gigabit Ethernet (GbE) LAN provides significantly faster data transfer speeds of up to 1 Gbps, which is ten times faster than traditional 100 Mbps Fast Ethernet, enabling smoother streaming, faster file transfers, and more responsive network applications.
HDMI 2.1 for 4K / 60P / 21:9 / HDCP 2.3 Support
HDMI 2.1, which is backwards compatible with HDMI 2.0/ 1.4 and offering 48 Gb/s of bandwidth – twice times more than previous generation. This unlocks the potential for users to transfer multiple video streams, as well as a native cinematic 21:9 ratio (which most movies are shot in), Full HDR and HDCP 2.3 support, to offer the best visual experience for viewers.
Note: Only New Gen AMD Ryzen™ with Radeon™ Graphics processors support displaying function.
The Industry's Leading LAN Static-Electricity & Surge Protection
GIGABYTE motherboards use ICs with up to 3 times the ESD resistance levels compared to traditional ICs. This helps to better protect the motherboard and its components against potential damage caused by static electricity. GIGABYTE motherboards also feature special anti-surge ICs that protect your motherboard, and your PC from any surge in power delivery that may occur, helping to ensure that your PC is equipped to deal with any potentially irregular and inconsistent power delivery.
COOLING
Smart Fan 6

Ensures optimal cooling and quiet operation for your gaming PC, with support for PWM/DC fans and pumps, customizable settings, and intuitive temperature monitoring.

Fan Connectors
Internal Temperature Sensors
Different models have different number of fan pin headers and temperature sensors. Smart Fan 5 function may vary by model.
Temperature Sensors
Hybrid Fan Headers
■ High Current Support: Each fan headers support PWM and DC fan and Water Cooling Pump , and up to 24W (12V x 2A) with Over-Current Protection.
■ Precision Control: Multiple temperature/fan speed control points for precise fan curve.
■ Dual Curve Mode: Slope/Stair dual mode for different user scenario.
■ Fan Stop: Fan can stop completely below users' specified temperature point.
Smart Fan 6 BIOS UI
1. Improve fan curve UI: We increase control points from 5 to 7 and larger fan speed graph for precise and easier fan curve control.
2. Slope/Stair dual graph mode: Fan curve can be quickly switch with Slope and Stair modes for different user scenario. Slope is traditional and intuitive linear fan speed curve. With newly added Stair non-linear mode, fan keeps at same speed between specified temperature interval.
3. Manual Input: For advanced users, we provide fan speed manual input for more precise control.
4. EZ Tuning: Use can place 4 EZ Tuning points at rough temperature/fan speed, and Smart Fan 6 can quickly generate a fan curve.
5. Fan curve profile: Fan curve profile can be saved in BIOS ROM, profile will be kept after updating BIOS.
Note: The picture is for reference and may vary by model.
AUDIO
High-End Audio Capacitors
GIGABYTE motherboards use high-end audio capacitors. These high quality capacitors help deliver high resolution and high fidelity audio to provide the most realistic sound effects for gamers.
Audio Noise Guard
GIGABYTE motherboards feature an audio noise guard that essentially separates the board’s sensitive analog audio components from potential noise pollution at the PCB level.
ULTRA DURABLE
GIGABYTE Patented Double Locking Bracket
Solid Pin Power Connectors
B550 motherboards feature solid plated ATX 12V 8pin power connectors for offering stable power supply while CPU overloading.
Solid Pin Power connector advantages
  1. Larger contact area for electricity
  2. More metal quantity to sustain higher power and generated heat
  3. Ultra durable and longer lifespan
START SULFURIZATION PROTECTION

Sulfur compounds in the air can penetrate tiny onboard resistors creating chemical change and causing these resistors to open or short. If either of these occurs the motherboard will fail to function. By equipping resistors with an Anti-Sulfur Design GIGABYTE gives Ultra Durable Motherboards a whole new meaning.

The Industry's Leading Surge Protection
GIGABYTE motherboards also feature special anti-surge IC that protect your motherboard, helping to ensure that your PC is equipped to deal with any potentially irregular electrical spikes.
Humidity Protection Glass Fabric PCB
There is nothing more harmful to the longevity of your PC than moisture, and most parts of the world experience moisture in the air as humidity at some point during the year. GIGABYTE motherboards have been designed to make sure that humidity is never an issue, incorporating a new Glass Fabric PCB technology that repels moisture caused by humid and damp conditions. Glass Fabric PCB technology uses a new PCB material which reduces the amount of space between the fiber weave, making it much more difficult for moisture to penetrate compared to traditional motherboard PCBs. This offers much better protection from short circuit and system malfunction caused by humid and damp conditions.
High Temperature Protection Lower RDS(on) MOSFETs Design
GIGABYTE motherboards use Low RDS(on) MOSFETs which reduce energy wastage through unnecessary residual heat dissipation. This all amounts to tangible energy savings which are beneficial for both end-users and the environment without impacting system performance.
GIGABYTE EXCELLENCE
GIGABYTE BIOS & Applications
BIOS
APP CENTER
EasyTune
@BIOS
System Information Viewer
Refreshed BIOS
The BIOS is essential for users during initial setup to allow for the most optimal settings. With a new GUI and easier to use functionalities, GIGABYTE has been able to reinvent the BIOS to give users a better experience while setting up their new system.

* Photos are for reference only. Product features may vary by model.


APP CENTER
GIGABYTE APP CENTER is an useful portal of all GIGABYTE MB utilities and drivers, you can choose any utility you want to install from APP CENTER and keep you updated with latest utilities and drivers version.

EasyTune™
GIGABYTE's EasyTune™ is a simple and easy-to-use interface that allows users to fine-tune their system settings or adjust system and memory clocks and voltages in a Windows environment. With Smart Quick Boost, one click is all it takes to automatically overclock your system, giving an added performance boost when you need it the most.

@BIOS
The GIGABYTE @BIOS app allows you to update your system’s BIOS from within Windows using a simple and slick graphical user interface. @BIOS can automatically download the latest version from the GIGABYTE servers or you can update your BIOS from a file on your computer. @BIOS also allows you to save your current BIOS to a file, recover your previous BIOS from an image and backup your BIOS to an image.

System Information Viewer
GIGABYTE System Information Viewer is a central location that gives you access to your current system status. Monitor components such as the clocks and processor, set your preferred fan speed profile, create alerts when temperatures get too high or record your system's behavior; these are the possibilities of the System Information Viewer.


* HDMI、HDMI High-Definition Multimedia Interfaceという語、HDMIのトレードドレスおよびHDMIのロゴは、HDMI Licensing Administrator, Inc.の商標または登録商標です。
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