Dell · laptop motherboard

Dell Inspiron 7490 LA-H451P

SchematicBoardviewBIOS
Board code
LA-H451P
Platform
EDW40
Made by
Compal
Revisions
Rev 1.0, Rev 2C
Files
5
Updated

Dell Inspiron 7490 LA-H451P is a laptop motherboard designed by Compal and used in the Dell Inspiron 7490.

The catalog has 1 schematic, 2 boardview files and 2 BIOS files for it, posted between 2022 and 2023 across 3 Telegram channels. Each download button opens the original Telegram post.

File names mention 2 board revisions (Rev 1.0 and Rev 2C). 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 .BRD, .BDV and .CAD format. .CAD 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.

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 EDW40.

Compatible models

  • Dell Inspiron 7490

Files for Dell Inspiron 7490 LA-H451P

Schematics 1 All schematics →

Boardview files 2 All boardview files →

BIOS and firmware 2 All bios and firmware →

  • Dell_Inspiron_7490_Compal_LA_H451P_EDW40_Rev_1_0A00_2019_08_14_BIOS.rar 7.9 MBRev 1.0
    Download from Telegram
  • EDW40_LA_H451P_Rev：1_0A00_2019_08_14_MEC1515_NB_N17S_G2_A1_H5GC8H24AJR.rar 8.5 MBRev 2C
    Download from Telegram

Frequently asked questions

Which laptops use the LA-H451P motherboard?
File names in the catalog tie LA-H451P to the Dell Inspiron 7490. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
Which revision of LA-H451P do I have?
Files for this board mention Rev 1.0 and Rev 2C. 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 LA-H451P boardview file?
The boardview for LA-H451P is available as .BRD, .BDV and .CAD. .BRD and .BDV usually opens in OpenBoardView (free) or FlexBV. .CAD 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 LA-H451P 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.

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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