Apple A1312
3 board numbers are linked to the Apple A1312: 820-2828, 820-2733 and 820-2901. Check the number printed on your board before using a file. There are 8 files in the catalog: 5 BIOS files and 3 schematics.
Earliest upload: December 2017.
BIOS dumps 5
FileSizeRevAddedSource
apple iMac 27 A1312 820-2828-A MX25L6406E TESTED OK
BIOS8 MBTested
3.5 MB
A
Get on Telegram BIOS Archive
IMACK 27 A1312 820-2828-A MX25L6406E WORKING BIOS 100%
BIOS8 MBTested
3.4 MB
A
Get on Telegram BIOS Archive
Schematics 3
FileSizeRevAddedSource
apple-imac-27-a1312-sch-k23-mlb-schematics
Schematic.pdf
1.6 MB
—
Get on Telegram Schematics & Boardviews Archive +1 more
Model facts
| Brand | Apple |
|---|---|
| Board revisions | A |
| BIOS chip size | 8 MB |
| Flash chip | MX25L6406E |
| First seen | 2017-12-25 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics |
Main boards used in Apple A1312
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
Which motherboard does the Apple A1312 use?
The files link the Apple A1312 to 820-2828, 820-2733 and 820-2901. Check the number printed on your board before flashing anything.
What size is the Apple A1312 BIOS chip?
The BIOS dumps for this model are 8 MB.
Where do the download links go?
To the original public Telegram post of each file. ChambersDesignInc.com does not host files.