Lenovo Flex LC55-14A 19793-1 Schematic
Technical Specifications
Technical Summary
The Wistron LC55-14A-1 (Project Code 4PD0K101A001, Revision A3) is an AMD Renoir APU-based motherboard featuring integrated graphics. The system is managed by a Nuvoton NPCE386 EC/KBC and boots from a 16MB Quad Read SPI Flash ROM. Memory is provided by DDR4 3200MHz modules in a memory-down configuration, with four pieces per channel across Channel A and Channel B. Power management is handled by a BQ25700ARSNR battery charger and multiple DC/DC converters including RT3663BMGQW, RT8231CGQW, APL5934KAI-TR, RT5797ALGQW, TPS51395PRJER, TPS51393PRJER, and RT8231AGQW. Audio is driven by a Realtek ALC3287 codec, while connectivity includes a Realtek RTS5457 USB-C controller and PS8319B re-drivers for HDMI. Storage is supported via an NGFF/NvMe SSD slot and an NGFF WLAN module.
Technician FAQ
Q: What EC/KBC is used on this motherboard?
A: The motherboard uses a Nuvoton NPCE386 EC/KBC.
Q: What is the BIOS flash configuration?
A: The BIOS is a 16MB Quad Read SPI Flash ROM.
Q: What is the memory architecture?
A: The board uses DDR4 3200MHz memory in a memory-down configuration, with four pieces per channel for both Channel A and Channel B.
Q: What charging IC is used?
A: The charging IC is a BQ25700ARSNR.
Q: What audio codec is present?
A: The audio codec is a Realtek ALC3287.
Technical data structured and organized by Dr-Bios.com, based on original schematic source analysis.
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | Wistron Corporation |
| Project Code | 4PD0K101A001 |
| Board Number | LC55-14A-1 |
| Revision | A3 |
| Date | Wednesday, March 04, 2020 |
| CPU Platform | AMD APU (Renoir) |
| GPU Type | Integrated (AMD APU) |
| EC / KBC | Nuvoton NPCE386 |
| Audio Codec | Realtek ALC3287 |
| BIOS / SPI Flash | 16MB Quad Read Flash ROM |
| Charging IC | BQ25700ARSNR |
| Power IC(s) | RT3663BMGQW, RT8231CGQW, APL5934KAI-TR, RT5797ALGQW, TPS51395PRJER, TPS51393PRJER, RT8231AGQW |
| RAM Type | DDR4 3200MHz |
| RAM Architecture | Memory down (SDP / DDP) |
| RAM Quantity / Slots | x4 pcs per channel (Channel A and Channel B) |
| Card Reader IC | Realtek Card Reader Controller |
| USB Hub IC | Realtek RTS5457 |
| LAN IC | Realtek RTS5457 (USB-C Controller) |
| WiFi / WLAN IC | NGFF WLAN |
| HDMI Level Shifter | PS8319B (Re-driver) |
Technical Summary
The Wistron LC55-14A-1 (Project Code 4PD0K101A001, Revision A3) is an AMD Renoir APU-based motherboard featuring integrated graphics. The system is managed by a Nuvoton NPCE386 EC/KBC and boots from a 16MB Quad Read SPI Flash ROM. Memory is provided by DDR4 3200MHz modules in a memory-down configuration, with four pieces per channel across Channel A and Channel B. Power management is handled by a BQ25700ARSNR battery charger and multiple DC/DC converters including RT3663BMGQW, RT8231CGQW, APL5934KAI-TR, RT5797ALGQW, TPS51395PRJER, TPS51393PRJER, and RT8231AGQW. Audio is driven by a Realtek ALC3287 codec, while connectivity includes a Realtek RTS5457 USB-C controller and PS8319B re-drivers for HDMI. Storage is supported via an NGFF/NvMe SSD slot and an NGFF WLAN module.
Technician FAQ
Q: What EC/KBC is used on this motherboard?
A: The motherboard uses a Nuvoton NPCE386 EC/KBC.
Q: What is the BIOS flash configuration?
A: The BIOS is a 16MB Quad Read SPI Flash ROM.
Q: What is the memory architecture?
A: The board uses DDR4 3200MHz memory in a memory-down configuration, with four pieces per channel for both Channel A and Channel B.
Q: What charging IC is used?
A: The charging IC is a BQ25700ARSNR.
Q: What audio codec is present?
A: The audio codec is a Realtek ALC3287.
Technical data structured and organized by Dr-Bios.com, based on original schematic source analysis.
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