NM-F091
NM-F091 is an LCFC Lenovo main board number. The catalog lists 3 files for it: 1 BIOS file, 1 schematic and 1 boardview.
File names mention revision 1.0. BIOS images are 16 MB. First posted in October 2024 in Schematics & Boardviews Archive and BIOS Archive.
BIOS dumps 1
Schematics 1
Boardviews 1
From the uploader
KY580 KY581 KY582 KY583 KY780 KY783 KY784 NM-F091 REV 1.0 16MB & 8MB & 2MB BIOS
Board facts
| Board number | NM-F091 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-F |
| Revisions | 1.0 |
| BIOS chip size | 16 MB |
| First seen | 2024-10-29 |
| Source channels | Schematics & Boardviews Archive, BIOS Archive |
| About the number | LCFC is Lenovo's joint venture with Compal; its main boards use NM- numbers and sub-boards NS- numbers. |
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 |
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .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
What BIOS chip size does NM-F091 use?
The BIOS images for NM-F091 are 16 MB.
Is there a boardview for NM-F091?
Yes, 1 boardview file in .bdv and .cad format.
Who designed the NM-F091 board?
NM-F091 is an LCFC board number used by Lenovo.
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.