Motherboard · Apple

820-3478-A — schematic, boardview & BIOS

3 files for the Apple board 820-3478-A. Check the revision (REV) printed next to the number on your board before using a BIOS dump.

SCHSchematics 1 BVBoardviews 1 BIOSBIOS & EC 1 Search “820-3478-A” in all files →

SCH820-3478-A schematics

SCH J17_MLB_051-9884_ 820-3478-A PDF .rar
3.1 MB .rar Apple 820-3478-A 16 Jul 2026 4 sources

BV820-3478-A boardviews

BV J17PVT 820-3478-A.brd BDV.zip
217 KB .zip Apple 820-3478-A 16 Jul 2026 5 sources

BIOS820-3478-A bios & ec

BIOS A1419 820-3478-A BIOS 8MB BIOS.rar
3.9 MB .rar Apple 820-3478-A 13 Jun 2022 3 sources