Lenovo · laptop motherboard

Lenovo G50 NM-A311

SchematicBIOS
Board code
NM-A311
Platform
ACLU0
Made by
LCFC
Revisions
Rev 0.2, Rev 1.0
Files
27
Updated

Lenovo G50 NM-A311 is a laptop motherboard designed by LCFC and used in the Lenovo G50, Lenovo G50-30, Lenovo G40-30 and Lenovo G40 and 1 more.

The catalog has 6 schematics and 21 BIOS files for it, posted between 2017 and 2024 across 6 Telegram channels. Each download button opens the original Telegram post.

File names mention 2 board revisions (Rev 0.2 and Rev 1.0). 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 schematic files are PDFs; the first pages usually hold the block diagram and the power sequence. New to schematics? Start with How to Use a Schematic and a Boardview Together.

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 ACLU0.

Compatible models

Files for Lenovo G50 NM-A311

Schematics 6 All schematics →

BIOS and firmware 21 All bios and firmware →

Notes from the source posts

  • 2014-03-12
  • Jhon Diaz
  • nm-a311 rev:1.0 bios&ec

Frequently asked questions

Which laptops use the NM-A311 motherboard?
File names in the catalog tie NM-A311 to the Lenovo G50, Lenovo G50-30, Lenovo G40-30, Lenovo G40 and Lenovo G4030. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
Which revision of NM-A311 do I have?
Files for this board mention Rev 0.2 and Rev 1.0. 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.
What should I check before flashing the NM-A311 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