Lenovo · laptop motherboard

Lenovo IdeaPad 3 15IML05 NM-C781

SchematicBoardviewBIOS
Board code
NM-C781
Platform
GS752
Made by
LCFC
Revisions
Rev 1.0, Rev 2.0
Files
15
Updated

Lenovo IdeaPad 3 15IML05 NM-C781 is a laptop motherboard designed by LCFC and used in the Lenovo IdeaPad 3 15IML05, Lenovo IT8586E, Lenovo Yoga S740 and Lenovo Yoga S740-14IIL and 2 more.

The catalog has 1 schematic, 2 boardview files and 12 BIOS files for it, posted between 2021 and 2024 across 2 Telegram channels. Each download button opens the original Telegram post.

File names mention 2 board revisions (Rev 1.0 and Rev 2.0). Check the revision printed on your PCB before relying on a boardview or flashing a BIOS dump — How to Open .FZ Boardview Files explains why it matters.

The boardview comes in .BDV and .TVW format. .TVW files usually need FlexBV or the viewer they were exported for; OpenBoardView handles .BRD, .BDV and .FZ. See OpenBoardView: Installation and First Steps.

With both a schematic and a boardview you can find a net on the diagram and then locate the same part on the board by its reference designator. No Boardview for Your Board? How to Work Without One shows the workflow.

BIOS notes: some archives also hold EC/KBC firmware; versions with a cleaned ME region are included. Read and save the original chip contents before you write anything to it — Keeping the Windows Product Key (MSDM) When Reflashing a BIOS.

Also listed under platform GS752.

Compatible models

Files for Lenovo IdeaPad 3 15IML05 NM-C781

Schematics 1 All schematics →

Boardview files 2 All boardview files →

BIOS and firmware 12 All bios and firmware →

Notes from the source posts

  • CLEAR ME FIXED
  • LENOVO IDEAPAD GAMING 3-15IMH05 NM-C781 REV 2.0 2020-03-04 N18P-G61-MP2-A1 OOOKKK

Frequently asked questions

Which laptops use the NM-C781 motherboard?
File names in the catalog tie NM-C781 to the Lenovo IdeaPad 3 15IML05, Lenovo IT8586E, Lenovo Yoga S740, Lenovo Yoga S740-14IIL, Lenovo IdeaPad 15SIML2020 and Lenovo IdeaPad Gaming 3. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
Which revision of NM-C781 do I have?
Files for this board mention Rev 1.0 and Rev 2.0. The revision is printed on the PCB silkscreen, usually next to the board code. Pick files with the same revision when you can; if yours is not listed, the closest revision is usually fine for the schematic but check part positions in the boardview carefully.
How do I open the NM-C781 boardview file?
The boardview for NM-C781 is available as .BDV and .TVW. .BDV usually opens in OpenBoardView (free) or FlexBV. .TVW usually needs FlexBV or the matching viewer. See What Is a Boardview File and Why You Need One.
What should I check before flashing the NM-C781 BIOS?
Read the original chip with a programmer and save two copies before writing anything. Some archives include EC/KBC firmware, which may need to be written to a separate chip. A dump from another board carries that board's serial number and MAC address, so restore yours from the backup.

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Files are hosted on Telegram by third parties; ExcitingSpas.com only links to public posts. Check that a file matches your board before using it. Disclaimer · Report a file