820-3478 is a Apple motherboard used in Apple devices. Enginerys has 5 schematics, 3 boardviews and 2 BIOS dumps for this board, collected from public Telegram channels.

10 files Family Apple Brand Apple Latest file 16 Sept 2025
Schematics 5Boardviews 3BIOS dumps 2

Check that 820-3478 matches the number printed on your PCB, including the revision. Where to find it →

820-3478 schematics

820-3478 boardviews

820-3478 BIOS dumps

Questions about 820-3478

Is there a schematic for 820-3478?

Yes. Enginerys lists 5 schematic files for 820-3478. Each entry links to the Telegram post where the PDF can be downloaded.

Is there a boardview for 820-3478?

Yes, 3 boardview files are listed. Open them with OpenBoardView or the viewer named on the file page.

Who makes the 820-3478 board?

820-3478 follows the Apple numbering scheme (820-xxxxx). It is found in Apple devices.

More Apple boards

All Apple boards
820-2936 181 820-3437 156 820-00165 146 820-2915 140 820-3115 136 820-00840 126 820-4924 124 820-3330 86 820-3332 86 820-3536 85 820-3023 82 820-01598 80 820-3476 79 820-00923 78 820-3787 77 820-00928 77 820-2530 76 820-3208 70 820-2838 69 820-3435 68