An archive of repair files (board 12124-2). Shared as “dell3020a15_MIH81RTigris MT MB 12124-2.rar” — a .rar file, 4.41 MB.
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 @IT_SERVICE_WORLD. Enginerys does not host this file.
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Schematic in PDF form for the Dell OptiPlex 3020 desktop, Wistron board 12125-2, with 12124-2 also associated with the archive, packed in a 1.63 MB RAR.
Dell OptiPlex 3020 small form factor boardview for the DIH81R Tigris motherboard, which the name gives as 12125-2.
BIOS dump for the Dell OptiPlex 3020 desktop, mini-tower variant, with motherboard MIH81R, codenamed Tigris MT and carrying board number 12124-2.
BIOS image for the Dell OptiPlex 3020 mini tower, board MIH81R Tigris MT, Wistron number 12124-2, in a 4.45 MB ZIP.