NM-A841 – Lenovo IdeaPad 110-15ACL
The NM-A841 (LCFC) motherboard is found in the Lenovo IdeaPad 110-15ACL, Lenovo IdeaPad 110 and Lenovo IdeaPad CG521. 7 files are indexed for this board: 5 BIOS files and 2 schematics.
Revisions seen in file names: 1.0. The BIOS dumps are 8 MB images. ODM project name: CG521. First posted in March 2018 in BIOS Archive, Schematics & Boardviews Archive and BIOS Skema Boardview Laptop.
BIOS dumps 5
Schematics 2
Board facts
| Board number | NM-A841 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-A |
| ODM project | CG521 |
| Revisions | 1.0 |
| BIOS chip size | 8 MB |
| Flash chip | 25Q64 |
| First seen | 2018-03-05 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, BIOS Skema Boardview Laptop, 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-A841
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.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .rar | RAR archive | 7-Zip or WinRAR |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Is there a boardview for NM-A841?
No boardview has been indexed for NM-A841 yet; the schematic is available on this page.
Who designed the NM-A841 board?
NM-A841 is an LCFC board number used by Lenovo.
What BIOS chip size does NM-A841 use?
The BIOS images for NM-A841 are 8 MB. Flash chips named in the files: 25Q64.
Which laptops use the NM-A841 board?
Files in the catalog link NM-A841 to the Lenovo IdeaPad 110-15ACL, Lenovo IdeaPad 110 and Lenovo IdeaPad CG521.
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.