NM-C871
NM-C871 is an LCFC Lenovo main board number. ChambersDesignInc.com has indexed 6 files for this board — 3 BIOS files, 1 schematic, 2 boardviews and 1 EC firmware image.
File names mention revision 2.0 or 0.1. ODM project names: GY531 and GY532. First posted in February 2022 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 3
Schematics 1
Boardviews 2
From the uploader
LENOVO Ideapad Gaming 3 15IMH05 GY530 GY531 GY532 NM-C871 Rev 2.0 Core i5-10300H GeForce GTX 1650
Board facts
| Board number | NM-C871 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-C |
| ODM project | GY531, GY532 |
| Revisions | 2.0, 0.1 |
| CPU generation | Intel 10th gen |
| First seen | 2022-02-01 |
| 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. |
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 |
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .rar | RAR archive | 7-Zip or WinRAR |
| .tvw | Tebo-ICT .tvw boardview | FlexBV or Tebo-ICT View |
| .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-C871?
Yes, 2 boardview files in .bdv and .tvw format.
Who designed the NM-C871 board?
NM-C871 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.