LA-5891P – Acer Aspire 4741Z
The Acer Aspire 4741Z, Acer Aspire 4741ZG, Acer Aspire 5741 and Acer 4751 are built on the LA-5891P board designed by Compal. 13 files are indexed for this board: 9 BIOS files, 3 schematics, 1 boardview and 2 EC firmware images.
Revisions seen in file names: 1.0. BIOS images are 4 MB. ODM project names: NEW70 and NCQF0. The earliest file dates from February 2018 (BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics).
BIOS dumps 9
Schematics 3
Boardviews 1
From the uploader
Compal NEW70 LA-5891P Rev: 1.0
ENE KB926QF D3
Winbond 25Q32BVS1G SOIC-8 (Insyde EFI)
Winbond 25X10BVN1G SOIC-8
Board facts
| Board number | LA-5891P |
|---|---|
| Designed by | Compal |
| Platform group | LA-5 |
| ODM project | NEW70, NCQF0 |
| Revisions | 1.0 |
| BIOS chip size | 4 MB |
| Flash chip | 25Q32BVS1G |
| Graphics | discrete GPU |
| First seen | 2018-02-20 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics, Laptop & Desktop BIOS Files |
| About the number | Compal board numbers start with LA- for main boards and LS- for daughter boards. |
Laptops that use LA-5891P
- Acer Aspire 4741Z
- Acer Aspire 4741ZG
- Acer Aspire 5741
- Acer 4751
- Acer 5742G
- Acer Aspire 5741G
- Acer Aspire 5741G-333G25MI
- Acer Aspire 5741G-334G50MN
- Acer Aspire 5741Z
- Acer Aspire 5741ZG
- Acer Aspire 5742G
- Acer Aspire 5742G-373G32MIKK
- Acer Aspire 5742ZG
- Packard Bell EasyNote TK85
What these files are for
A BIOS dump is a full image of the board's SPI flash chip. It is written back with an SPI programmer when the original firmware is corrupted, after a chip replacement, or to recover from a failed update. Read and save the original chip first: serial number, DMI data and the Intel ME / AMD PSP state differ between boards.
A schematic is the circuit diagram of the main board: power rails, power-up sequence, component values and net names. It is the reference for measuring voltages and tracing a fault.
A boardview is the component placement map of the PCB: click a part or a net and the viewer highlights where it is and what it connects to. Used together with the schematic to find test points.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .bdv | Honhan .bdv boardview | OpenBoardView, FlexBV or Honhan BoardViewer |
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .rar | RAR archive | 7-Zip or WinRAR |
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Is there a boardview for LA-5891P?
Yes, 1 boardview file in .bdv format.
Who designed the LA-5891P board?
LA-5891P is a Compal board number used by Acer.
Which laptops use the LA-5891P board?
Files in the catalog link LA-5891P to the Acer Aspire 4741Z, Acer Aspire 4741ZG, Acer Aspire 5741, Acer 4751, Acer 5742G, Acer Aspire 5741G, Acer Aspire 5741G-333G25MI, Acer Aspire 5741G-334G50MN, Acer Aspire 5741Z, Acer Aspire 5741ZG and 4 more.
What BIOS chip size does LA-5891P use?
The BIOS images for LA-5891P are 4 MB. Flash chips named in the files: 25Q32BVS1G.
Where do the download links go?
Each button opens the original public Telegram post the file was shared in. ChambersDesignInc.com only indexes and cross-references those posts.