Apple series

Apple iMac BIOS, schematics & boardviews

Apple all-in-one computers. 49 files, newest added 16 Jul 2026.

22BIOS dumps16Schematics8Boardviews

49 files

Source
iMac A1419 820-00291 820-00291-05 Schematic (1)Apple · iMacrar
820-00291-820Schematic1.9 MB16 Jul 2026
IMAC A1418 820-3482-A WORKING BIOS 100%Apple · iMacrar
820-3482BIOS dump12.3 MB27 Apr 2024
IMAC J16 MLB 820-3482-A PDFApple · iMacrar
820-3482Schematic3.5 MB27 Apr 2024
IMac 24 A1225 K51 BOARDVIEW (BDV)(.BRD)Apple · iMacrar
—Boardview4.8 MB10 Jan 2024
IMAC A1225 820-211-A BIOSApple · iMacrar
820-211BIOS dump2.5 MB10 Jan 2024
IMAC 820-2301BOARDVIEW (BDV)(.BRD)Apple · iMacrar
—Boardview127 KB06 Jan 2024
IMAC A1418 820-01069-B W25Q64FV TESTED OKApple · iMacrar
820-01069BIOS dump3.7 MB24 Dec 2023
MACK iMac 27 A1419 MK 482 820-00134 820-01134-A PDFApple · iMacrar
820-00134-820Schematic1.8 MB23 Dec 2023
IMAC 2015 i5 a1418 EMC 2833-820-00431a WORKING BIOS 100%Apple · iMacrar
—BIOS dump4.3 MB18 Dec 2023
iMac 27 A1419 - 820-3299 EMC2546 BRDApple · iMacrar
820-3299Boardview209 KB01 Oct 2023
iMac 27 A1419 - 820-3299 EMC2546 PDFApple · iMacrar
820-3299Schematic2.3 MB01 Oct 2023
apple iMac 27 A1312 820-2828-A MX25L6406E TESTED OKApple · iMaczip
820-2828BIOS dump3.5 MB05 Sept 2023
Apple iMac A1311 K74 051-8337 820-2784 PDFApple · iMacrar
820-2784Schematic2.8 MB05 Sept 2023
APPLE IMAC A1418 EMC 3069 mid 2017 820 01061 A WORKING BIOS 100%Apple · iMacrar
820-01061BIOS dump9.1 MB03 Jul 2023
Imac A1224 MX25L3205 20230619 13749 WORKING BIOS 100%Apple · iMacrar
—BIOS dump1.3 MB20 Jun 2023
A1418 iMac 21.5-inch, Mid2014 820-4668-A PDFApple · iMacrar
820-4668Schematic1.4 MB29 May 2023
IMac A1312 WORKING BIOS 100%Apple · iMacrar
—BIOS dump6.7 MB29 May 2023
IMac A1418 (EMC2889) 820-00430-A BIOSApple · iMacrar
820-00430BIOS dump3.8 MB12 Nov 2022
IMAC A1419 820-00609-A ME REGION OKApple · iMaczip
820-00609BIOS dump5.0 MB29 Aug 2022
Apple IMac 27 A1312 SCH K23 MLB Schematics AMD 109 B97157 00Apple · iMacrar
—Schematic1.5 MB11 Jul 2022
IMAC A1418 (820-00431-A) (BDV)Apple · iMaczip
820-00431Boardview166 KB09 Jun 2022
IMAC A1418 (820-00431-A)-PDFApple · iMacrar
820-00431Schematic2.5 MB09 Jun 2022
Apple iMac 27 5K Retina 820-00609-AApple · iMacrar
820-00609BIOS dump4.3 MB25 May 2022
IMAC a1419 EMC3070 820-01134-AApple · iMacrar
820-01134BIOS dump4.3 MB25 May 2022
BIOS Apple iMac 27 Late 2013 (820-3481-A)Apple · iMacrar
820-3481BIOS dump7.8 MB28 Mar 2022
Apple iMac 27 A1419 MK482 820-00134 PDFApple · iMacrar
820-00134Schematic1.8 MB05 Mar 2022
BIOS IMAC A1418 EMC 2638 820-3588-AApple · iMaczip
820-3588BIOS dump4.1 MB26 Jan 2022
APPLE IMAC A1418 LATE 2015 J117 MLB 820 00034 051 00081 BOARDVIEWApple · iMacrar
820-00034-051Boardview140 KB23 Jan 2022
APPLE IMAC A1418 LATE 2015 J117 MLB 820 00034 051 00081 SCHEMATICApple · iMacrar
820-00034-051Schematic1.4 MB23 Jan 2022
IMAC 21.5 820-00431-A 8MB BIOS ORIGApple · iMaczip
820-00431BIOS dump4.7 MB23 Jan 2022
APPLE IMAC A1418 LATE 2015 J117 MLB 820 00034 051 00081 SCHEMATICApple · iMacrar
820-00034-051Schematic1.4 MB13 Dec 2021
APPLE IMAC A1418 LATE 2015 J117 MLB 820 00034 051 00081 SCHEMATICApple · iMacrar
820-00034-051Schematic1.4 MB11 Nov 2021
BIOS APPLE IMAC 16.2 A1418 2889 820-00034-AApple · iMacrar
820-00034BIOS dump3.8 MB11 Nov 2021
APPLE IMAC 21 5 A1418 051-9509 D7 MLB 820-3302Apple · iMacrar
820-3302Other file1.7 MB02 Oct 2021
Apple K22 PVT 051-7845Apple · iMacrar
—Boardview1.4 MB10 Aug 2021
APPLE iMac 21.5 A1418 820-01061-AApple · iMacrar
820-01061BIOS dump4.3 MB05 Jul 2021
Apple iMac A1419 820-4652-A Schematic & BoardviewApple · iMacrar
820-4652Boardview11.3 MB15 Jun 2021
Apple iMac A1419 820-4652-A biosApple · iMaczip
820-4652BIOS dump4.6 MB09 Jun 2021
iMac A1419 820-00134-AApple · iMaczip
820-00134BIOS dump4.6 MB06 Jun 2021
iMac A1419 820-00291 820-00291-05 SchematicApple · iMacrar
820-00291-820Schematic1.9 MB17 Feb 2021
Apple iMac 27 A1419Apple · iMacrar
—Other file2.2 MB03 Aug 2020
Apple iMac 27 5K Retina 820-00609-AApple · iMacrar
820-00609BIOS dump4.2 MB20 Jun 2020
APPLE IMAC A1418 LATE 2015 J117 MLB 820 00034 051 00081 BOARDVIEWApple · iMacrar
820-00034-051Boardview94 KB20 Jun 2020
APPLE IMAC A1418 LATE 2015 J117 MLB 820 00034 051 00081 SCHEMATICApple · iMacrar
820-00034-051Schematic1.3 MB20 Jun 2020
820-3302 Apple iMac 21 5 A1418 051-9509 D7 MLBApple · iMacrar
820-3302Other file1.8 MB24 Jul 2019
iMac A1419-EMC 2639-820-6478-A CLEANApple · iMacrar
820-6478BIOS dump3.9 MB02 Dec 2018
iMac A1418 (EMC 2889) 820-00430-AApple · iMacrar
820-00430BIOS dump3.8 MB03 Nov 2018
apple-imac-27-a1312-sch-k23-mlb-schematics (2)Apple · iMacpdf
—Schematic1.6 MB26 Dec 2017
apple-imac-27-a1312-sch-k23-mlb-schematicsApple · iMacpdf
—Schematic1.6 MB25 Dec 2017
All 49 files · scroll the tableTitles and arrows open the original Telegram post

About the Apple iMac library

49 Apple iMac files from public repair archives: 22 BIOS dumps, 16 schematics, 8 boardviews and 3 other files.

Finding the board number. Apple logic boards use 820- numbers such as 820-00840 or 820-3437. The A-number on the case identifies the model, not the board.

Titles are cleaned-up filenames; hover a title to see the original. Brand, series, board number and file type are detected automatically, so compare the board number and revision before you flash a dump or rely on a diagram.

How to choose the right file

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