LA-E903P – Acer Aspire A515
The Acer Aspire A515 and Acer Aspire A515-41G are built on the LA-E903P board designed by Compal. The catalog lists 5 files for it: 3 BIOS files, 2 schematics and 1 EC firmware image.
Revisions seen in file names: 1A. First posted in November 2021 in Schematics & Boardviews Archive, BIOS Archive and Laptop & Desktop BIOS Files.
BIOS dumps 3
Schematics 2
Board facts
| Board number | LA-E903P |
|---|---|
| Designed by | Compal |
| Platform group | LA-E |
| Revisions | 1A |
| Graphics | discrete GPU |
| First seen | 2021-11-13 |
| Source channels | Schematics & Boardviews Archive, BIOS Archive, 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-E903P
- Acer Aspire A515
- Acer Aspire A515-41G
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.
EC (embedded controller) firmware runs the keyboard controller, power sequencing, battery charging and fans. Depending on the board it lives in a separate chip (ENE KB9012, ITE IT85xx, Nuvoton NPCE) or inside the main SPI image, so check which applies before flashing.
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-E903P?
No boardview has been indexed for LA-E903P yet; the schematic is available on this page.
Who designed the LA-E903P board?
LA-E903P is a Compal board number used by Acer.
Which laptops use the LA-E903P board?
Files in the catalog link LA-E903P to the Acer Aspire A515 and Acer Aspire A515-41G.
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.