LA-B991P – Acer Aspire E5-571G
LA-B991P is the Compal main board used in the Acer Aspire E5-571G, Acer Aspire V3-572G, Acer Aspire E5-571 and Acer Aspire V3. 14 files are indexed for this board: 11 BIOS files, 2 schematics, 1 boardview and 3 EC firmware images.
File names mention revision 1.0 or 0.3. ODM project names: A5WAH, A5WAB and Z5WAH. First posted in September 2017 in BIOS Archive, BIOS Skema Boardview Laptop and Schematics & Boardviews Archive.
BIOS dumps 11
Schematics 2
Boardviews 1
Board facts
| Board number | LA-B991P |
|---|---|
| Designed by | Compal |
| Platform group | LA-B |
| ODM project | A5WAH, A5WAB, Z5WAH |
| Revisions | 1.0, 0.3 |
| EC / KBC chip | KB9022Q |
| CPU generation | Intel 5th gen |
| Graphics | discrete GPU |
| First seen | 2017-09-05 |
| Source channels | BIOS Archive, BIOS Skema Boardview Laptop, Schematics & Boardviews Archive, Cyberlan Electronics |
| About the number | Compal board numbers start with LA- for main boards and LS- for daughter boards. |
Laptops that use LA-B991P
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 |
| .bin | raw SPI flash image | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
| 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 |
Questions
Who designed the LA-B991P board?
LA-B991P is a Compal board number used by Acer.
Which laptops use the LA-B991P board?
Files in the catalog link LA-B991P to the Acer Aspire E5-571G, Acer Aspire V3-572G, Acer Aspire E5-571 and Acer Aspire V3.
Is there a boardview for LA-B991P?
Yes, 1 boardview file in .bdv format.
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.