RAR archive for the Dell OptiPlex 3040 desktop, linked to Wistron board number 14056-2. The name does not say what is inside, so it may hold a schematic, boardview or firmware; extract it and inspect the contents before planning a repair. Dell commonly sources OptiPlex boards from Wistron, whose five-digit numbers with a dash revision suffix match this pattern. Check that the board number silkscreened on the PCB matches, and if the package contains a BIOS image, back up the original SPI chip with a programmer before writing anything.
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 @BiosSchematicWorld. Enginerys does not host this file.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @BiosSchematicWorld | 29 Jan 2025 | Open file on RM Schematics |
| @biosarchive | 20 May 2026 | Open file on RM Schematics |
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.