HP · laptop motherboard

HP ProBook 4440S 11243-1

SchematicBIOS
Board code
11243-1
Made by
Wistron
Revisions
Rev A
Files
15
Updated

HP ProBook 4440S 11243-1 is a laptop motherboard designed by Wistron and used in the HP ProBook 4440S, HP ProBook 4740S, HP ProBook 4540S and HP ProBook 4441S and 2 more.

The catalog has 1 schematic and 14 BIOS files for it, posted between 2017 and 2025 across 4 Telegram channels. Each download button opens the original Telegram post.

The files are marked Rev A; other revisions of the same board can differ in parts and layout.

The schematic is a PDF; 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: 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.

Compatible models

Files for HP ProBook 4440S 11243-1

Schematics 1 All schematics →

BIOS and firmware 14 All bios and firmware →

Frequently asked questions

Which laptops use the 11243-1 motherboard?
File names in the catalog tie 11243-1 to the HP ProBook 4440S, HP ProBook 4740S, HP ProBook 4540S, HP ProBook 4441S, HP ProBook 4410S and HP ProBook 4411S. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
Which revision of 11243-1 do I have?
Files for this board mention Rev A. 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 11243-1 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