Dell Latitude 5430 (mb# HDB42 LA-L591P), Motherboard Schematic Diagram and BoardView file

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What's included:

- Schematic Diagram for MB (see details below)
- Power rails
- Power Sequence G3-S0 (Non deep)
- SMbus Block Diagram
- AC Power up Sequence (Step-by-Step)
- DC Power up Sequence (Step-by-Step)
- Power rails
- SMBUS Block Diagram
- PROCHOT# Topology
- EC G3 SPI Flash Sharing with Wire-OR Non-Vpro / Vpro Topology
- PCH_PCIE_WAKE# Topology
- PCH_PLTRST# Topology



Major components:

CPU: Intel ADL-U / DDR4
GPU: UMA
EC/KBC : MEC5200

File type (Schematic): PDF
File type (BoardView): FZ (FlexBV)
Language : English


Attention : Schematic PDF is taken from a similar MB and have some differences.

Schematic/ CPU Contr. NCP81522 >>> BoardView/ ISL96850 (IMVP_VR_ON)
Schematic/ DrMos NCP302045 >>> BoardView/ MP86993 (+VCCIN, +VCC_GT)

But not limited. There are small diferencies. Schematic Offered As-Is
Updated: 13-03-2026
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