NM-A311 – Lenovo G50-30
The NM-A311 (LCFC) motherboard is found in the Lenovo G50-30, Lenovo G40-30 and Lenovo G40 G4030. The catalog lists 23 files for it: 16 BIOS files, 5 schematics, 1 boardview and 6 EC firmware images.
Revisions seen in file names: 1.0. The BIOS dumps are 8 MB images. ODM project names: ACLU9, ACLU0, ACLU10 and A7CN4. The earliest file dates from January 2017 (BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics).
BIOS dumps 16
Schematics 5
EC / KBC firmware 2
From the uploader
ACLU9/ACLU0 NM-A311
REV: 1.0
2014-03-12
LENOVO G40 G4030 ACLU9 ACLU0 NM-A311 REV 1.0 2014-03-12 WORKING BIOS & EC 100%
LENOVO G50-30 ACLU9 ACLU0 NM-A311 REV 1.0 2014-03-12 BIOS & KBEC IT8586E 1515-FXA WORKING 100%
Board facts
| Board number | NM-A311 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-A |
| ODM project | ACLU9, ACLU0, ACLU10, A7CN4 |
| Revisions | 1.0 |
| BIOS chip size | 8 MB |
| EC / KBC chip | IT8586, IT8586E |
| First seen | 2017-01-31 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics, BIOS Files |
| 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-A311
- Lenovo G50-30
- Lenovo G40-30
- Lenovo G40 G4030
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 |
|---|---|---|
| .7z | 7-Zip archive | 7-Zip or WinRAR |
| .bin | raw SPI flash image | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
| 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 |
Questions
What BIOS chip size does NM-A311 use?
The BIOS images for NM-A311 are 8 MB.
Is there a boardview for NM-A311?
Yes, 1 boardview file.
Who designed the NM-A311 board?
NM-A311 is an LCFC board number used by Lenovo.
Which laptops use the NM-A311 board?
Files in the catalog link NM-A311 to the Lenovo G50-30, Lenovo G40-30 and Lenovo G40 G4030.
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.