12223-1 – Acer Aspire S7
The Acer Aspire S7 and Acer Aspire S7-391 are built on the 12223-1 board designed by Wistron. The catalog lists 3 files for it: 1 BIOS file, 1 schematic and 1 EC firmware image.
First posted in March 2018 in BIOS Archive, Cyberlan Electronics and Schematics & Boardviews Archive.
BIOS dumps 1
Schematics 1
EC / KBC firmware 1
From the uploader
S7-391-53334G12 ( 12223-1 48.4WE05.011) CPU SR0XL I5-3337U SLJ8C IT8518VG 4MB & 2MB BIOS
Board facts
| Board number | 12223-1 |
|---|---|
| Designed by | Wistron |
| Platform group | 12XXX |
| Also known as | 48.4WE05.011 |
| EC / KBC chip | IT8518VG |
| CPU generation | Intel 3rd gen |
| First seen | 2018-03-20 |
| Source channels | BIOS Archive, Cyberlan Electronics, Schematics & Boardviews Archive |
| About the number | Wistron board numbers look like 15217-1; the first two digits usually indicate the design year. |
Laptops that use 12223-1
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 | |
| .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 12223-1?
No boardview has been indexed for 12223-1 yet; the schematic is available on this page.
Who designed the 12223-1 board?
12223-1 is a Wistron board number used by Acer.
Which laptops use the 12223-1 board?
Files in the catalog link 12223-1 to the Acer Aspire S7 and Acer Aspire S7-391.
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.