Lenovo · laptop motherboard

Lenovo IdeaPad 320-15IKB NM-B452

SchematicBoardviewBIOS
Board code
NM-B452
Platform
EG721
Made by
LCFC
Revisions
Rev 0.0, Rev 0.2, Rev 1.0
Files
17
Updated

Lenovo IdeaPad 320-15IKB NM-B452 is a laptop motherboard designed by LCFC and used in the Lenovo IdeaPad 320-15IKB, Lenovo IdeaPad 520-15IKB and Lenovo IdeaPad 330S 15IKB.

The catalog has 3 schematics, 2 boardview files and 12 BIOS files for it, posted between 2019 and 2026 across 4 Telegram channels. Each download button opens the original Telegram post.

File names mention 3 board revisions (Rev 0.0, 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 boardview comes in .TVW format. .TVW files usually need FlexBV or the viewer they were exported for; OpenBoardView handles .BRD, .BDV and .FZ. See How to Open .TVW Boardview Files.

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.

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 EG721.

Compatible models

Files for Lenovo IdeaPad 320-15IKB NM-B452

Schematics 3 All schematics →

Boardview files 2 All boardview files →

BIOS and firmware 12 All bios and firmware →

Notes from the source posts

  • LENOVO IdeaPad 320-15IKB 520-15IKB EG521 EG522 EZ511 EG721 NM-B452 REV 1.0 BIOS & KBEC
  • LENOVO 320-15IKB (Type 80XL, 80YE) Laptop (ideapad) 4wcn41ww Kabylake EG521 EG522 EZ511 EG721 NM-B452 REV:1.0
  • BIOS & KBC
  • LENOVO 320-15IKB (Type 80XL, 80YE) Laptop (ideapad) 4wcn41ww Kabylake EG521 EG522 EZ511 EG721 NM-B452 REV1.0 BIOS & KBEC
  • Lenovo IdeaPad 320-15IKB (Type 81BG, 81BT) NM-B452
  • 8MB.bin
  • ITE.bin

Frequently asked questions

Which laptops use the NM-B452 motherboard?
File names in the catalog tie NM-B452 to the Lenovo IdeaPad 320-15IKB, Lenovo IdeaPad 520-15IKB and Lenovo IdeaPad 330S 15IKB. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
Which revision of NM-B452 do I have?
Files for this board mention Rev 0.0, 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.
How do I open the NM-B452 boardview file?
The boardview for NM-B452 is available as .TVW. .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-B452 BIOS?
Read the original chip with a programmer and save two copies before writing anything. A dump from another board carries that board's serial number and MAC address, so restore yours from the backup.

Guides for this board

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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