Schematic Lenovo Yoga Slim 7 Pro 14IHU5 HS450 NM-D231 Schematic

Vahab Hemmati

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Lenovo Yoga Slim 7 Pro 14IHU5 HS450 NM-D231 Schematic




Technical Specifications

ParameterValue
BrandLenovo
ModelS750
Motherboard ManufacturerLenovo PND
Project CodeTGL-U42
Board NumberCRDNC166
RevisionV0.5
DateFriday, August 07, 2020
CPU PlatformTGL-U42
GPU TypeNV G61 MAX Q (N18P-G61-MP2-A1) (GDDR6*4 4GB) / MX450 (N18S-G5-B-KA-A1) (GDDR6*2 2GB)
Graphics ArchitectureGDDR6
RAM TypeLPDDR4X
RAM ArchitectureLPDDR4X Channel 0 & 1
Charging ICTPS65994
Charger ArchitectureTypc-C TBT
USB Hub ICPS8719
USB ChargerTPS2546
WiFi / WLAN ICCNVi WiFi/BT
HDMI Level ShifterHDA
Card Reader ICRIO
Thermal SensorSMBus ADDRESS: EC_SMB1: 0x9A, 0x98 THERMAL SENSOR / I2C ADDRESS: ISH-I2C0: 0x88 ALS / ISH I2C1: 0X52 TOF

Technical Summary

The Lenovo S750 motherboard, project code TGL-U42, board number CRDNC166 revision V0.5 dated August 7, 2020, is built on the TGL-U42 CPU platform. Graphics options include the NV G61 MAX Q (N18P-G61-MP2-A1) with 4GB GDDR6 or the MX450 (N18S-G5-B-KA-A1) with 2GB GDDR6. Memory architecture consists of LPDDR4X across two channels. The charging subsystem is managed by a TPS65994 controller over a Type-C TBT interface. USB connectivity includes a PS8719 re-timer and a TPS2546 USB charger. Wireless connectivity is provided by CNVi WiFi/BT. Thermal monitoring is handled via SMBus and I2C sensors addressed at 0x9A, 0x98, 0x88, and 0x52.

Technician FAQ

Q: What GPU configurations are available on this motherboard?

A: Two GPU options are documented: NV G61 MAX Q (N18P-G61-MP2-A1) with 4GB GDDR6 across four chips, and MX450 (N18S-G5-B-KA-A1) with 2GB GDDR6 across two chips.

Q: What memory type and architecture does this board use?

A: The board uses LPDDR4X memory across two channels, labeled LPDDR4X Channel 0 & 1.

Q: What charging controller is used on this motherboard?

A: The charging subsystem uses a TPS65994 controller over a Type-C TBT interface.

Q: What thermal sensor addresses are used on this board?

A: Thermal sensors are addressed via SMBus at EC_SMB1: 0x9A and 0x98, and via I2C at ISH-I2C0: 0x88 and ISH I2C1: 0x52.

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

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