Lenovo LCFC JY577 JY578 JY679 NM-E481 Schematic
Technical Specifications
Technical Summary
This LCFC Y550 motherboard, revision 1.0 dated 2021-05-22, is built around the AMD Rembrandt FP7r2 BGA1140 APU platform with an nVidia GN20-E3/E6/E8 discrete GPU. The system EC is an ITE IT8227-LQFP128, and the audio codec is an ALC3287. Memory architecture consists of DDR5 non-ECC SO-DIMM modules. The board utilizes an SPI ROM for BIOS storage. Charging is managed by a PDC65994BF Type-C controller. Networking is provided by a Realtek RTL8111H-CG LAN IC and an M.2 WLAN/BT card. The design incorporates multiple USB redrivers and muxes including PS8461E, PS8361, PS8812, PS8419, and PS8830, alongside AG IT8258 and AG IT8176 level shifters for display connectivity. Thermal monitoring is handled by F75303M and NCT7718W sensors.
Technician FAQ
Q: What EC/KBC is used on this motherboard?
A: The EC/KBC is an ITE IT8227-LQFP128.
Q: What is the CPU platform and GPU configuration?
A: The CPU platform is AMD Rembrandt FP7r2 BGA1140, paired with an nVidia GN20-E3/E6/E8 discrete GPU.
Q: What memory type and architecture does this board support?
A: The board supports DDR5 non-ECC memory via DDR5-SO-DIMM slots.
Q: What charging IC is used?
A: The charging IC is a PDC65994BF Type-C controller.
Technical data structured and organized by Dr-Bios.com, based on original schematic source analysis.
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | LCFC |
| Model | YX70 M/B |
| Motherboard Manufacturer | LC Future Center |
| Project Code | Y550 |
| Board Number | Y550 |
| Revision | 1.0 |
| Date | 2021-05-22 |
| CPU Platform | AMD Rembrandt FP7r2 BGA1140 |
| GPU Type | nVidia GN20-E3/E6/E8 |
| EC / KBC | ITE IT8227-LQFP128 |
| Audio Codec | ALC3287 |
| BIOS / SPI Flash | SPI ROM |
| Charging IC | PDC65994BF |
| RAM Type | DDR5 non-ECC |
| RAM Architecture | DDR5-SO-DIMM x1 |
| LAN IC | RTL8111H-CG |
| WiFi / WLAN IC | M.2 Card (WLAN&BT) |
| Card Reader IC | RTS5411S |
| USB Hub IC | RTS5411S |
| Thermal Sensor | F75303M |
Technical Summary
This LCFC Y550 motherboard, revision 1.0 dated 2021-05-22, is built around the AMD Rembrandt FP7r2 BGA1140 APU platform with an nVidia GN20-E3/E6/E8 discrete GPU. The system EC is an ITE IT8227-LQFP128, and the audio codec is an ALC3287. Memory architecture consists of DDR5 non-ECC SO-DIMM modules. The board utilizes an SPI ROM for BIOS storage. Charging is managed by a PDC65994BF Type-C controller. Networking is provided by a Realtek RTL8111H-CG LAN IC and an M.2 WLAN/BT card. The design incorporates multiple USB redrivers and muxes including PS8461E, PS8361, PS8812, PS8419, and PS8830, alongside AG IT8258 and AG IT8176 level shifters for display connectivity. Thermal monitoring is handled by F75303M and NCT7718W sensors.
Technician FAQ
Q: What EC/KBC is used on this motherboard?
A: The EC/KBC is an ITE IT8227-LQFP128.
Q: What is the CPU platform and GPU configuration?
A: The CPU platform is AMD Rembrandt FP7r2 BGA1140, paired with an nVidia GN20-E3/E6/E8 discrete GPU.
Q: What memory type and architecture does this board support?
A: The board supports DDR5 non-ECC memory via DDR5-SO-DIMM slots.
Q: What charging IC is used?
A: The charging IC is a PDC65994BF Type-C controller.
Technical data structured and organized by Dr-Bios.com, based on original schematic source analysis.
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