Motherboard · Apple

820-3330 — schematic, BIOS & files

6 files for the Apple board 820-3330. Check the revision (REV) printed next to the number on your board before using a BIOS dump.

SCHSchematics 4 BIOSBIOS & EC 1 PACKBoard packs & other 1 Search “820-3330” in all files →

SCH820-3330 schematics

SCH 820-3330B_J31 PDF.rar
3.4 MB .rar Apple 820-3330 4 Jul 2026 3 sources
SCH 820-3330B_J31 PDF.pdf
3.5 MB .pdf Apple 820-3330 16 Nov 2022
SCH 820-3330B_J31.pdf
3.5 MB .pdf Apple 820-3330 28 Apr 2022 3 sources
SCH 820-3330.zip
2.1 MB .zip Apple 820-3330 24 Apr 2022 3 sources

BIOS820-3330 bios & ec

BIOS 820-3330-20 BIOS 8MB TESTED OK -new.rar
3.9 MB .rar Apple 820-3330 25 Dec 2021

PACK820-3330 board packs & other

PACK 820-3330.zip
1.0 MB .zip Apple 820-3330 13 Sept 2025