Acer · laptop motherboard

Acer Aspire 4741Z LA-5891P

SchematicBIOS
Board code
LA-5891P
Platform
NEW70
Made by
Compal
Revisions
Rev 1.0
Files
12
Updated

Acer Aspire 4741Z LA-5891P is a laptop motherboard designed by Compal and used in the Acer Aspire 4741Z, Acer Aspire 4741ZG, Acer 4751 and Acer Aspire 5741 and 5 more.

The catalog has 3 schematics and 9 BIOS files for it, posted between 2018 and 2024 across 4 Telegram channels. Each download button opens the original Telegram post.

The files are marked Rev 1.0; other revisions of the same board can differ in parts and layout.

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 NEW70.

Compatible models

Files for Acer Aspire 4741Z LA-5891P

Schematics 3 All schematics →

BIOS and firmware 9 All bios and firmware →

Notes from the source posts

  • ENE KB926QF D3
  • Winbond 25Q32BVS1G SOIC-8 (Insyde EFI)
  • Winbond 25X10BVN1G SOIC-8

Frequently asked questions

Which laptops use the LA-5891P motherboard?
File names in the catalog tie LA-5891P to the Acer Aspire 4741Z, Acer Aspire 4741ZG, Acer 4751, Acer Aspire 5741, Acer Aspire 5742ZG and Acer Aspire 5741G-333G25MI. 3 more models are listed above. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
Which revision of LA-5891P do I have?
Files for this board mention 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 LA-5891P 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