HP · laptop motherboard

HP Pavilion DV3 LA-4743P

SchematicBIOS
Board code
LA-4743P
Platform
NBW10
Made by
Compal
Revisions
Rev 1.0
Files
4
Updated

HP Pavilion DV3 LA-4743P is a laptop motherboard designed by Compal and used in the HP Pavilion DV3 and HP CQ36.

The catalog has 2 schematics and 2 BIOS files for it, posted between 2020 and 2026 across 3 Telegram channels. Each download button opens the original Telegram post.

The files are marked Rev 1.0; other revisions of the same board can differ in parts and layout.

The schematic files are PDFs; the first pages usually hold the block diagram and the power sequence. New to schematics? Start with How to Use a Schematic and a Boardview Together.

BIOS notes: some archives also hold EC/KBC firmware. Read and save the original chip contents before you write anything to it — Keeping the Windows Product Key (MSDM) When Reflashing a BIOS.

Also listed under platform NBW10.

Compatible models

Files for HP Pavilion DV3 LA-4743P

Schematics 2 All schematics →

BIOS and firmware 2 All bios and firmware →

Frequently asked questions

Which laptops use the LA-4743P motherboard?
File names in the catalog tie LA-4743P to the HP Pavilion DV3 and HP CQ36. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
Which revision of LA-4743P do I have?
Files for this board mention Rev 1.0. The revision is printed on the PCB silkscreen, usually next to the board code. Pick files with the same revision when you can; if yours is not listed, the closest revision is usually fine for the schematic but check part positions in the boardview carefully.
What should I check before flashing the LA-4743P BIOS?
Read the original chip with a programmer and save two copies before writing anything. Some archives include EC/KBC firmware, which may need to be written to a separate chip. A dump from another board carries that board's serial number and MAC address, so restore yours from the backup.

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Files are hosted on Telegram by third parties; ExcitingSpas.com only links to public posts. Check that a file matches your board before using it. Disclaimer · Report a file