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Lenovo Thinkpad L14 GEN 1 GL4A0 GL5A0 NM-C631 Schematic
Technical Specifications
Technical Summary
The LC Future Center GL4A0/GL5A0 NM-C631 motherboard, revision 1.0 dated February 12, 2020, is built around the R19M-M25 CPU platform with DDR4 memory configured in Sub Channel-A and Sub Channel-B. The system is managed by an NPCE68APA0DX EC/KBC controller and features an ALC3287 audio codec. Power delivery is handled by a comprehensive array of DC/DC converters including LV6228C, SYX198B, SY8310RAC, RT8068A, RT3605BE, RT9610CGQ, RT9610, RT9610CGQW, NB693, RT3662EB, and NB691GG. The charging architecture is based on the BQ25700A battery charger. The discrete GPU is identified as R19M-M25 with dedicated VRAM Channel-A. Connectivity includes a Jacksonville LAN IC, NM-C631 WLAN, a Media Card Controller, TPS65988DJ USB hub/PD controller, and a DDI Demultiplexer for HDMI. The board also incorporates a dedicated SPI Flash section and thermal sensors labeled GL4A0/GL5A0.
Technician FAQ
Q: What EC/KBC controller is used on this motherboard?
A: The EC/KBC controller is the NPCE68APA0DX.
Q: What charging IC is used on this motherboard?
A: The charging IC is the BQ25700A.
Q: What is the GPU configuration on this motherboard?
A: The discrete GPU is the R19M-M25 with dedicated VRAM Channel-A.
Q: What audio codec is used on this motherboard?
A: The audio codec is the ALC3287.
Technical data structured and organized by Dr-Bios.com, based on original schematic source analysis.
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | LC Future Center |
| Model | GL4A0/GL5A0 NM-C631 |
| Motherboard Manufacturer | LC Future Center |
| Board Number | NM-C631 |
| Revision | 1.0 |
| Date | Feb.12.2020 |
| CPU Platform | R19M-M25 |
| EC / KBC | NPCE68APA0DX |
| Audio Codec | ALC3287 |
| Charging IC | BQ25700A |
| RAM Type | DDR4 |
| RAM Architecture | Sub Channel-A, Sub Channel-B |
| LAN IC | Jacksonville |
| WiFi / WLAN IC | NM-C631 |
| Card Reader IC | Media Card Controller |
| USB Hub IC | TPS65988DJ |
| HDMI Level Shifter | DDI Demultiplexer |
| GPU Type | R19M-M25 |
| Graphics Architecture | VRAM Channel-A |
| dGPU Chip Number | R19M-M25 |
| Power IC(s) | LV6228C, SYX198B, SY8310RAC, RT8068A, RT3605BE, RT9610CGQ, RT9610, RT9610CGQW, NB693, RT8068A, RT3662EB, NB691GG |
| Thermal Sensor | GL4A0/GL5A0 |
| SPI Flash | SPI FLASH |
Technical Summary
The LC Future Center GL4A0/GL5A0 NM-C631 motherboard, revision 1.0 dated February 12, 2020, is built around the R19M-M25 CPU platform with DDR4 memory configured in Sub Channel-A and Sub Channel-B. The system is managed by an NPCE68APA0DX EC/KBC controller and features an ALC3287 audio codec. Power delivery is handled by a comprehensive array of DC/DC converters including LV6228C, SYX198B, SY8310RAC, RT8068A, RT3605BE, RT9610CGQ, RT9610, RT9610CGQW, NB693, RT3662EB, and NB691GG. The charging architecture is based on the BQ25700A battery charger. The discrete GPU is identified as R19M-M25 with dedicated VRAM Channel-A. Connectivity includes a Jacksonville LAN IC, NM-C631 WLAN, a Media Card Controller, TPS65988DJ USB hub/PD controller, and a DDI Demultiplexer for HDMI. The board also incorporates a dedicated SPI Flash section and thermal sensors labeled GL4A0/GL5A0.
Technician FAQ
Q: What EC/KBC controller is used on this motherboard?
A: The EC/KBC controller is the NPCE68APA0DX.
Q: What charging IC is used on this motherboard?
A: The charging IC is the BQ25700A.
Q: What is the GPU configuration on this motherboard?
A: The discrete GPU is the R19M-M25 with dedicated VRAM Channel-A.
Q: What audio codec is used on this motherboard?
A: The audio codec is the ALC3287.
Technical data structured and organized by Dr-Bios.com, based on original schematic source analysis.
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