Schematic Lenovo ThinkBook 14 G4+ IAP Huaqin NB5979 NB5986 Schematic

Salim Badakhshan

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Lenovo ThinkBook 14 G4+ IAP Huaqin NB5979 NB5986 Schematic




Technical Specifications

ParameterValue
BrandHuaqin
Project NameNB5979&NB5986
RevisionV6.0
DateThursday, January 27, 2022
CPU PlatformIntel Alder Lake P-Processor
CPU SocketBGA-1744
GPU TypeGN20-S5 / GN18-S5
Graphics ArchitecturePCIe Gen4 GDDR6 2GB/4GB 1R-6400 2R-5200
EC / KBCIT5571VG
EC/KBC Programmable32MB SPI ROM
Audio CodecRealtek ALC3287
BIOS / SPI Flash32MB SPI ROM
Charging ICTPDPS65994AE
RAM TypeLPDDR5
RAM ArchitectureMemory Down 2 x X32
RAM Quantity / Slots16GB
Card Reader ICRTS5232
LAN ICRealtek I219LM
WiFi / WLAN ICWIFI6 AX + BT5.0 M.2 2230
HDMI Level ShifterPS8409A

Technical Summary

The Huaqin NB5979/NB5986 motherboard is built on the Intel Alder Lake P-Processor platform with a BGA-1744 socket. The system memory architecture uses LPDDR5 in a memory-down configuration with two X32 channels totaling 16GB. Discrete graphics options include GN20-S5 or GN18-S5 GPUs with PCIe Gen4 GDDR6 memory supporting 2GB or 4GB configurations at 6400 or 5200 MT/s. The embedded controller is an IT5571VG with a dedicated 32MB SPI ROM for firmware storage. The BIOS/SPI flash is also a 32MB SPI ROM. Audio is handled by a Realtek ALC3287 codec. The charging controller is a TPDPS65994AE. Networking includes a Realtek I219LM LAN controller and a WIFI6 AX + BT5.0 M.2 2230 wireless module. The HDMI interface uses a PS8409A level shifter, and the card reader is an RTS5232.

Technician FAQ

Q: What EC/KBC is used on this motherboard?

A: The EC/KBC is an IT5571VG with a dedicated 32MB SPI ROM.

Q: What is the BIOS flash configuration?

A: The BIOS/SPI flash is a 32MB SPI ROM.

Q: What is the memory architecture?

A: The memory is LPDDR5 in a memory-down configuration with two X32 channels totaling 16GB.

Q: What discrete GPU options are available?

A: The motherboard supports GN20-S5 or GN18-S5 GPUs with PCIe Gen4 GDDR6 memory in 2GB or 4GB configurations at 6400 or 5200 MT/s.

Technical data structured and organized by Dr-Bios.com, based on original schematic source analysis.
 

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  • Lenovo ThinkBook 14 G4+ IAP Huaqin NB5979 NB5986 Schematic.pdf
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