Lenovo Legion 5 GY552 NM-C991 Schematic
Technical Specifications
Technical Summary
The Y550 motherboard, designed by LC Future Center, is built around the Intel Comet Lake H platform with a BGA-1440 CPU socket and an Intel PCH. Graphics are handled by an NVidia N18P-G61/G62 dGPU with 4GB of GDDR6 memory. The system uses DDR4 non-ECC memory in two SO-DIMM slots, supporting up to 2933 MT/s per channel. The embedded controller is an ITE IT8227 in an LQFP128 package. The main BIOS is stored on a 16MB SPI ROM, with a separate VBIOS on a W25Q80 IC. Audio is managed by an ALC3287 codec, and networking is provided by a Realtek RTL8111H-CG LAN IC. The board also features a PS8747 USB redriver and switch, a PS8331B HDMI level shifter, and a CRTS5457T Type-C PD controller.
Technician FAQ
A: The main BIOS is stored on a 16MB SPI ROM. A separate VBIOS is stored on a W25Q80 IC.
A: The embedded controller is an ITE IT8227 in an LQFP128 package.
A: The motherboard supports DDR4 non-ECC memory via two SO-DIMM slots, with one channel per slot, supporting up to 2933 MT/s.
A: The motherboard uses an NVidia N18P-G61/G62 dGPU with 4GB of GDDR6 memory.
Technical data structured and organized by Dr-Bios.com, based on original schematic source analysis.
Reuse permitted only with source attribution.
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | LCFC |
| Model | Y550 |
| Motherboard Manufacturer | LC Future Center |
| Project Code | Y550 |
| Board Number | Y550 |
| Revision | 1.0 |
| Date | 2019-12-16 |
| CPU Platform | Comet Lake H |
| CPU Socket | BGA-1440 |
| PCH / Southbridge | Intel PCH |
| GPU Type | dGPU |
| Graphics Architecture | NV N18P-G61/G62 |
| dGPU Chip Number | N18P-G61/G62 |
| EC / KBC | ITE IT8227 |
| EC/KBC Package | LQFP128 |
| Audio Codec | ALC3287 |
| BIOS / SPI Flash | SPI ROM |
| BIOS Flash Capacity | 16MB |
| LAN IC | RTL8111H-CG |
| RAM Type | DDR4 |
| RAM Architecture | DDR4-SO-DIMM x1, Channel A, Channel B |
| RAM Quantity / Slots | 2 |
| Thermal Sensor | F75303M |
| Card Reader IC | Card Reader For 17' |
| USB Hub IC | PS8747 |
| WiFi / WLAN IC | M.2 CRF Module |
| HDMI Level Shifter | PS8331B |
| Charging IC | CRTS5457T |
| Power IC(s) | PS8747, PS8331B, CRTS5457T |
Technical Summary
The Y550 motherboard, designed by LC Future Center, is built around the Intel Comet Lake H platform with a BGA-1440 CPU socket and an Intel PCH. Graphics are handled by an NVidia N18P-G61/G62 dGPU with 4GB of GDDR6 memory. The system uses DDR4 non-ECC memory in two SO-DIMM slots, supporting up to 2933 MT/s per channel. The embedded controller is an ITE IT8227 in an LQFP128 package. The main BIOS is stored on a 16MB SPI ROM, with a separate VBIOS on a W25Q80 IC. Audio is managed by an ALC3287 codec, and networking is provided by a Realtek RTL8111H-CG LAN IC. The board also features a PS8747 USB redriver and switch, a PS8331B HDMI level shifter, and a CRTS5457T Type-C PD controller.
Technician FAQ
A: The main BIOS is stored on a 16MB SPI ROM. A separate VBIOS is stored on a W25Q80 IC.
A: The embedded controller is an ITE IT8227 in an LQFP128 package.
A: The motherboard supports DDR4 non-ECC memory via two SO-DIMM slots, with one channel per slot, supporting up to 2933 MT/s.
A: The motherboard uses an NVidia N18P-G61/G62 dGPU with 4GB of GDDR6 memory.
Technical data structured and organized by Dr-Bios.com, based on original schematic source analysis.
Reuse permitted only with source attribution.
Indexed motherboard components
Open a component to see every indexed schematic that uses the same part.
Y550
Project Code
Y550
Board Number
COMET LAKE - H
CPU Platform
PCH
PCH / Southbridge
dGPU
Graphics
NV N18P-G61/G62
Graphics
N18P-G61/G62
Graphics
IT8227
EC / KBC
ALC3287
Audio Codec
RTL8111H_CG
LAN Controller
DDR4
RAM Type
F75303M
Thermal / Fan Control
CARD READER FOR 17'
Card Reader IC
PS8747
USB Controller
M.2 CRF Module
WiFi / WLAN
PS8331B
Signal Conditioning IC
CRTS5457T
Charging / PD IC
CRTS5457T
Power IC
PS8331B
Power IC
PS8747
Power IC
Indexed motherboard components
Open a component to see every indexed schematic that uses the same part.
Y550
Project Code
Y550
Board Number
COMET LAKE - H
CPU Platform
PCH
PCH / Southbridge
dGPU
Graphics
NV N18P-G61/G62
Graphics
N18P-G61/G62
Graphics
IT8227
EC / KBC
ALC3287
Audio Codec
RTL8111H_CG
LAN Controller
DDR4
RAM Type
F75303M
Thermal / Fan Control
CARD READER FOR 17'
Card Reader IC
PS8747
USB Controller
M.2 CRF Module
WiFi / WLAN
PS8331B
Signal Conditioning IC
CRTS5457T
Charging / PD IC
CRTS5457T
Power IC
PS8331B
Power IC
PS8747
Power IC
Attachments
Last edited by a moderator: