A boardview (component placement) file for Lenovo hardware. Shared as “THINKPAD_E40_E50_QUANTA_GC5_GC5A_GC5B_BOARDVIEW_BDV_BRD_.rar” — a .rar file, 77.2 KB.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @generalbios. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
7-ZipWinRARThe Unarchiver (macOS)