NM-A161 – Lenovo ThinkPad Edge E540
NM-A161 is the LCFC main board used in the Lenovo ThinkPad Edge E540, Lenovo ThinkPad E540, Lenovo ThinkPad E440 and Lenovo ThinkPad U4M1. The catalog lists 15 files for it: 13 BIOS files, 2 schematics and 4 EC firmware images.
File names mention revision 1.0 or 0.1. The BIOS dumps are 4 MB and 8 MB images. ODM project names: AILE2 and AILE23. First posted in February 2018 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 13
Schematics 2
From the uploader
AILE2 NM-A161 REV 1.0 2013-12-12
U41&U81&KBEC&USROM1
Board facts
| Board number | NM-A161 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-A |
| ODM project | AILE2, AILE23 |
| Revisions | 1.0, 0.1 |
| BIOS chip size | 4 MB, 8 MB |
| EC / KBC chip | IT8586E |
| GPU | N14P-GV2-S-A1 |
| Graphics | discrete GPU |
| First seen | 2018-02-28 |
| 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-A161
- Lenovo ThinkPad Edge E540
- Lenovo ThinkPad E540
- Lenovo ThinkPad E440
- Lenovo ThinkPad U4M1
- Lenovo ThinkPad U8M1
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.
EC (embedded controller) firmware runs the keyboard controller, power sequencing, battery charging and fans. Depending on the board it lives in a separate chip (ENE KB9012, ITE IT85xx, Nuvoton NPCE) or inside the main SPI image, so check which applies before flashing.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .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
Which laptops use the NM-A161 board?
Files in the catalog link NM-A161 to the Lenovo ThinkPad Edge E540, Lenovo ThinkPad E540, Lenovo ThinkPad E440, Lenovo ThinkPad U4M1 and Lenovo ThinkPad U8M1.
What BIOS chip size does NM-A161 use?
The BIOS images for NM-A161 are 4 MB and 8 MB.
Who designed the NM-A161 board?
NM-A161 is an LCFC board number used by Lenovo.
Is there a boardview for NM-A161?
No boardview has been indexed for NM-A161 yet; the schematic is available on this page.
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.