LA-8481P – Acer Aspire S5-391
The LA-8481P (Compal) motherboard is found in the Acer Aspire S5-391. The catalog lists 3 files for it: 1 BIOS file, 1 schematic and 1 boardview.
Revisions seen in file names: 1.0. The BIOS dumps are 2 MB and 4 MB images. The earliest file dates from September 2017 (Schematics & Boardviews Archive, Cyberlan Electronics and BIOS Archive).
BIOS dumps 1
Schematics 1
Boardviews 1
Board facts
| Board number | LA-8481P |
|---|---|
| Designed by | Compal |
| Platform group | LA-8 |
| Revisions | 1.0 |
| BIOS chip size | 2 MB, 4 MB |
| Graphics | UMA (integrated) |
| First seen | 2017-09-05 |
| Source channels | Schematics & Boardviews Archive, Cyberlan Electronics, BIOS Archive |
| About the number | Compal board numbers start with LA- for main boards and LS- for daughter boards. |
Laptops that use LA-8481P
- Acer Aspire S5-391
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 |
|---|---|---|
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .rar | RAR archive | 7-Zip or WinRAR |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Is there a boardview for LA-8481P?
Yes, 1 boardview file.
Which laptops use the LA-8481P board?
Files in the catalog link LA-8481P to the Acer Aspire S5-391.
Who designed the LA-8481P board?
LA-8481P is a Compal board number used by Acer.
What BIOS chip size does LA-8481P use?
The BIOS images for LA-8481P are 2 MB and 4 MB.
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.