Salim Badakhshan
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Gigabyte B550M H Rev 1.0 1.03 Schematic
Technical Specifications
Technical Summary
The Gigabyte B550M H motherboard, project code U98126-0, is built around the AMD AM4 platform with a Promontory I/O hub. The board revision is 1.0, dated April 28, 2020, with board number 9MB55MH-00-01. The VRM is a 4+3 phase design controlled by the RAA229004 PWM controller paired with RAA220002 power stages. Memory support consists of two unbuffered DDR4 DIMM slots. The system uses an SPI BIOS flash for firmware storage. The embedded controller is an IT8688 LPC SIO. Audio is handled by the Realtek ALC887 HD audio codec, and networking is provided by the Realtek RTL8118 LAN IC. The HDMI interface is managed by an IT5702 level shifter. Power regulation includes RT8120 for VDDIO_MEM, NCT3103S for DDRVTT, and RT8068A for DDRVPP.
Technician FAQ
Q: What is the board number and project code for this motherboard?
A: The board number is 9MB55MH-00-01 and the project code is U98126-0.
Q: What EC/KBC is used on the Gigabyte B550M H?
A: The embedded controller is an IT8688 LPC SIO.
Q: What audio codec is used on this motherboard?
A: The audio codec is a Realtek ALC887.
Q: What is the VRM controller configuration?
A: The VRM uses a RAA229004 PWM controller with RAA220002 power stages in a 4+3 phase configuration.
Technical data structured and organized by Dr-Bios.com, based on original schematic source analysis.
Technical Specifications
Technical Summary
The Gigabyte B550M H motherboard, project code U98126-0 and board number 9MB55MH-00-01, is built on revision 1.03 and dated July 31, 2020. It is based on the AMD AM4 platform with a Promontory PCH. The system uses DDR4 memory across two unbuffered DIMM slots. Power management is handled by a combination of RAA229004 and RAA220002 for VCORE/VCORE_SOC, with RT8120 for VDDIO_MEM and RT8068A for DDRVPP. The embedded controller is an IT8688 LPC SIO. Audio is provided by a Realtek ALC887 HD audio codec. Networking is handled by a Realtek RTL8118 LAN IC. The board features an SPI BIOS interface and includes an IT5702 IC for HDMI level shifting, card reading, USB hub, and thermal sensing functions.
Technician FAQ
Q: What is the board number and project code for the Gigabyte B550M H?
A: The board number is 9MB55MH-00-01 and the project code is U98126-0.
Q: What EC/KBC is used on this motherboard?
A: The EC/KBC is an IT8688 LPC SIO.
Q: What audio codec is used on the Gigabyte B550M H?
A: The audio codec is a Realtek ALC887.
Q: What LAN IC is used on this motherboard?
A: The LAN IC is a Realtek RTL8118.
Q: What power ICs are used for VCORE and memory power?
A: VCORE/VCORE_SOC uses RAA229004 and RAA220002, VDDIO_MEM uses RT8120, and DDRVPP uses RT8068A.
Technical data structured and organized by Dr-Bios.com, based on original schematic source analysis.
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | Gigabyte |
| Model | B550M H |
| Motherboard Manufacturer | Gigabyte |
| Project Code | U98126-0 |
| Board Number | 9MB55MH-00-01 |
| Revision | 1.0 |
| Date | Tuesday, April 28, 2020 |
| CPU Platform | AMD AM4 |
| PCH / Southbridge | Promontory |
| GPU Type | dGPU |
| EC / KBC | IT8688 |
| Audio Codec | ALC887 |
| BIOS / SPI Flash | SPI BIOS |
| Charging IC | RT8120 |
| Power IC(s) | RAA229004, RAA220002, RT8068A, NCT3103S |
| RAM Type | DDR4 |
| RAM Architecture | Unbuffered DIMM |
| RAM Quantity / Slots | 2 |
| LAN IC | RTL8118 |
| HDMI Level Shifter | IT5702 |
Technical Summary
The Gigabyte B550M H motherboard, project code U98126-0, is built around the AMD AM4 platform with a Promontory I/O hub. The board revision is 1.0, dated April 28, 2020, with board number 9MB55MH-00-01. The VRM is a 4+3 phase design controlled by the RAA229004 PWM controller paired with RAA220002 power stages. Memory support consists of two unbuffered DDR4 DIMM slots. The system uses an SPI BIOS flash for firmware storage. The embedded controller is an IT8688 LPC SIO. Audio is handled by the Realtek ALC887 HD audio codec, and networking is provided by the Realtek RTL8118 LAN IC. The HDMI interface is managed by an IT5702 level shifter. Power regulation includes RT8120 for VDDIO_MEM, NCT3103S for DDRVTT, and RT8068A for DDRVPP.
Technician FAQ
Q: What is the board number and project code for this motherboard?
A: The board number is 9MB55MH-00-01 and the project code is U98126-0.
Q: What EC/KBC is used on the Gigabyte B550M H?
A: The embedded controller is an IT8688 LPC SIO.
Q: What audio codec is used on this motherboard?
A: The audio codec is a Realtek ALC887.
Q: What is the VRM controller configuration?
A: The VRM uses a RAA229004 PWM controller with RAA220002 power stages in a 4+3 phase configuration.
Technical data structured and organized by Dr-Bios.com, based on original schematic source analysis.
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | Gigabyte |
| Model | B550M H |
| Motherboard Manufacturer | Gigabyte |
| Project Code | U98126-0 |
| Board Number | 9MB55MH-00-01 |
| Revision | 1.03 |
| Date | Friday, July 31, 2020 |
| CPU Platform | AMD AM4 |
| PCH / Southbridge | Promontory |
| EC / KBC | IT8688 |
| Audio Codec | Realtek ALC887 |
| BIOS / SPI Flash | SPI BIOS |
| Charging IC | NCT3103S |
| Power IC(s) | RAA229004, RAA220002, RT8120, RT8068A |
| RAM Type | DDR4 |
| RAM Architecture | Unbuffered DDR4 DIMM |
| RAM Quantity / Slots | 2 |
| LAN IC | Realtek RTL8118 |
| WiFi / WLAN IC | RTL8118 |
| HDMI Level Shifter | IT5702 |
| Card Reader IC | IT5702 |
| USB Hub IC | IT5702 |
| Thermal Sensor | IT5702 |
| GPU Type | AMD AM4 integrated graphics |
| Graphics Architecture | AMD AM4 integrated graphics |
Technical Summary
The Gigabyte B550M H motherboard, project code U98126-0 and board number 9MB55MH-00-01, is built on revision 1.03 and dated July 31, 2020. It is based on the AMD AM4 platform with a Promontory PCH. The system uses DDR4 memory across two unbuffered DIMM slots. Power management is handled by a combination of RAA229004 and RAA220002 for VCORE/VCORE_SOC, with RT8120 for VDDIO_MEM and RT8068A for DDRVPP. The embedded controller is an IT8688 LPC SIO. Audio is provided by a Realtek ALC887 HD audio codec. Networking is handled by a Realtek RTL8118 LAN IC. The board features an SPI BIOS interface and includes an IT5702 IC for HDMI level shifting, card reading, USB hub, and thermal sensing functions.
Technician FAQ
Q: What is the board number and project code for the Gigabyte B550M H?
A: The board number is 9MB55MH-00-01 and the project code is U98126-0.
Q: What EC/KBC is used on this motherboard?
A: The EC/KBC is an IT8688 LPC SIO.
Q: What audio codec is used on the Gigabyte B550M H?
A: The audio codec is a Realtek ALC887.
Q: What LAN IC is used on this motherboard?
A: The LAN IC is a Realtek RTL8118.
Q: What power ICs are used for VCORE and memory power?
A: VCORE/VCORE_SOC uses RAA229004 and RAA220002, VDDIO_MEM uses RT8120, and DDRVPP uses RT8068A.
Technical data structured and organized by Dr-Bios.com, based on original schematic source analysis.
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