NM-A043 – Lenovo ThinkPad E431
The NM-A043 (LCFC) motherboard is found in the Lenovo ThinkPad E431, Lenovo ThinkPad E531 and Lenovo ThinkPad Edge E431. The catalog lists 11 files for it: 8 BIOS files, 2 schematics, 1 boardview and 1 EC firmware image.
Revisions seen in file names: 1.0. ODM project names: VILE1 and VILE2. The earliest file dates from February 2020 (BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics).
BIOS dumps 8
Schematics 2
Boardviews 1
From the uploader
LENOVO THINKPAD EDGE E431 VILE1 NM-A043 REV.1.0 2013-03-22 i5-3320 8MB & 4MB
Board facts
| Board number | NM-A043 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-A |
| ODM project | VILE1, VILE2 |
| Revisions | 1.0 |
| CPU generation | Intel 3rd gen |
| First seen | 2020-02-04 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics |
| About the number | LCFC is Lenovo's joint venture with Compal; its main boards use NM- numbers and sub-boards NS- numbers. |
Laptops that use NM-A043
- Lenovo ThinkPad E431
- Lenovo ThinkPad E531
- Lenovo ThinkPad Edge E431
What these files are for
A BIOS dump is a full image of the board's SPI flash chip. It is written back with an SPI programmer when the original firmware is corrupted, after a chip replacement, or to recover from a failed update. Read and save the original chip first: serial number, DMI data and the Intel ME / AMD PSP state differ between boards.
A schematic is the circuit diagram of the main board: power rails, power-up sequence, component values and net names. It is the reference for measuring voltages and tracing a fault.
A boardview is the component placement map of the PCB: click a part or a net and the viewer highlights where it is and what it connects to. Used together with the schematic to find test points.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .bdv | Honhan .bdv boardview | OpenBoardView, FlexBV or Honhan BoardViewer |
| .cad | .cad boardview | FlexBV, OpenBoardView or BoardViewer |
| .rar | RAR archive | 7-Zip or WinRAR |
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Who designed the NM-A043 board?
NM-A043 is an LCFC board number used by Lenovo.
Is there a boardview for NM-A043?
Yes, 1 boardview file in .bdv and .cad format.
Which laptops use the NM-A043 board?
Files in the catalog link NM-A043 to the Lenovo ThinkPad E431, Lenovo ThinkPad E531 and Lenovo ThinkPad Edge E431.
Where do the download links go?
Each button opens the original public Telegram post the file was shared in. ChambersDesignInc.com only indexes and cross-references those posts.