Apple iMac BIOS Dumps

21 files across 16 boards and models. Most common chip sizes: 8 MB (3) and 4 MB (1). 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.

Apple iMac BIOS Dumps

820-00034Apple A14186 files · BIOS, Schematic, Boardview
820-00134Apple A14199 files · BIOS, Schematic, Boardview
820-00430Apple A14182 files · BIOS
820-00431Apple A14186 files · BIOS, Schematic, Boardview
820-00609Apple A14193 files · BIOS, Schematic
820-01061Apple A14182 files · BIOS
820-01134Apple A14194 files · BIOS, Schematic, Boardview
820-2828Apple A13126 files · BIOS, Schematic, Boardview
820-3482Apple A14182 files · BIOS, Schematic
820-3588Apple A14185 files · BIOS, Schematic, Boardview
820-4652Apple A14196 files · BIOS, Schematic, Boardview
A1224820-21432 files · BIOS, Schematic
A12252 files · BIOS, Boardview
A1312820-2828, 820-27338 files · BIOS, Schematic
A1418820-00431, 820-0003420 files · BIOS, Schematic, Boardview
A1419820-00134, 820-465218 files · BIOS, Schematic, Boardview

Latest uploads

FileSizeRevAddedSource

IMAC A1418 820-3482-A WORKING BIOS 100%

BIOSTested

820-3482 · A1418

12.3 MB

2024-04-27