NM-B911 – Lenovo ThinkPad FE490
The Lenovo ThinkPad FE490, Lenovo ThinkPad E590, Lenovo ThinkPad E490 and Lenovo ThinkPad 20NB0068RT are built on the NM-B911 board designed by LCFC. The catalog lists 19 files for it: 16 BIOS files, 3 schematics and 3 EC firmware images.
Revisions seen in file names: 1.0, 2.0 and 0.4. BIOS images are 16 MB. ODM project names: FE590 and FE480. First posted in June 2020 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 16
Schematics 3
From the uploader
FE490 FE590 FE480 NM-B911 REV 1.0 2018-11-20 216-0905004
CPU SRFFX i5-8265
216-0905004
Board facts
| Board number | NM-B911 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-B |
| ODM project | FE590, FE480 |
| Revisions | 1.0, 2.0, 0.4 |
| BIOS chip size | 16 MB |
| EC / KBC chip | IT8227E |
| GPU | 216-0905018 |
| CPU generation | Intel 8th gen |
| Graphics | discrete GPU, UMA (integrated) |
| First seen | 2020-06-27 |
| 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-B911
- Lenovo ThinkPad FE490
- Lenovo ThinkPad E590
- Lenovo ThinkPad E490
- Lenovo ThinkPad 20NB0068RT
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
Is there a boardview for NM-B911?
No boardview has been indexed for NM-B911 yet; the schematic is available on this page.
Which laptops use the NM-B911 board?
Files in the catalog link NM-B911 to the Lenovo ThinkPad FE490, Lenovo ThinkPad E590, Lenovo ThinkPad E490 and Lenovo ThinkPad 20NB0068RT.
Who designed the NM-B911 board?
NM-B911 is an LCFC board number used by Lenovo.
Are these files free?
1 of the posts are marked VIP or paid in their source channel; the others are ordinary posts. ChambersDesignInc.com does not host or sell files.
What BIOS chip size does NM-B911 use?
The BIOS images for NM-B911 are 16 MB.
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.