LA-E581P – Lenovo IdeaPad 720
The LA-E581P (Compal) motherboard is found in the Lenovo IdeaPad 720 and Lenovo IdeaPad 720S 14IKB. ChambersDesignInc.com has indexed 5 files for this board — 3 BIOS files and 2 schematics.
Revisions seen in file names: 0.3 and 2A. The BIOS dumps are 8 MB images. The earliest file dates from January 2021 (BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics).
BIOS dumps 3
Schematics 2
Board facts
| Board number | LA-E581P |
|---|---|
| Designed by | Compal |
| Platform group | LA-E |
| Revisions | 0.3, 2A |
| BIOS chip size | 8 MB |
| First seen | 2021-01-16 |
| Source channels | BIOS Archive, 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-E581P
- Lenovo IdeaPad 720
- Lenovo IdeaPad 720S 14IKB
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.
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 |
| .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
Who designed the LA-E581P board?
LA-E581P is a Compal board number used by Lenovo.
Which laptops use the LA-E581P board?
Files in the catalog link LA-E581P to the Lenovo IdeaPad 720 and Lenovo IdeaPad 720S 14IKB.
Is there a boardview for LA-E581P?
No boardview has been indexed for LA-E581P yet; the schematic is available on this page.
What BIOS chip size does LA-E581P use?
The BIOS images for LA-E581P are 8 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.