Lenovo · laptop motherboard

Lenovo ThinkPad E431 NM-A043

SchematicBoardviewBIOS
Board code
NM-A043
Platform
VILE1
Made by
LCFC
Revisions
Rev 1.0
Files
11
Updated

Lenovo ThinkPad E431 NM-A043 is a laptop motherboard designed by LCFC and used in the Lenovo ThinkPad E431, Lenovo ThinkPad Edge E431 and Lenovo ThinkPad E531.

The catalog has 2 schematics, 1 boardview file and 8 BIOS files for it, posted between 2020 and 2024 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 boardview comes in .BDV and .CAD format. .CAD files usually need FlexBV or the viewer they were exported for; OpenBoardView handles .BRD, .BDV and .FZ. See OpenBoardView: Installation and First Steps.

With both a schematic and a boardview you can find a net on the diagram and then locate the same part on the board by its reference designator. No Boardview for Your Board? How to Work Without One shows the workflow.

BIOS notes: some archives also hold EC/KBC firmware; versions with a cleaned ME region are included. 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 VILE1; codes NM-A044, NM-A041.

Compatible models

Files for Lenovo ThinkPad E431 NM-A043

Schematics 2 All schematics →

Boardview files 1 All boardview files →

BIOS and firmware 8 All bios and firmware →

Notes from the source posts

  • ThinkPad Edge E431 COMPAL VILE1 NM-A043 BIOS 11-17-2014

Frequently asked questions

Which laptops use the NM-A043 motherboard?
File names in the catalog tie NM-A043 to the Lenovo ThinkPad E431, Lenovo ThinkPad Edge E431 and Lenovo ThinkPad E531. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
Which revision of NM-A043 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.
How do I open the NM-A043 boardview file?
The boardview for NM-A043 is available as .BDV and .CAD. .BDV usually opens in OpenBoardView (free) or FlexBV. .CAD usually needs FlexBV or the matching viewer. See What Is a Boardview File and Why You Need One.
What should I check before flashing the NM-A043 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