BIOS file for the Dell OptiPlex 3020 built on the DIH81R mainboard at revision 00, and labelled General, which probably marks a generic dump without unit-specific data. The H81 portion of the board code points to the Intel H81 chipset. The RAR is 3.27 MB and should be extracted before you program the SPI chip with an external tool. Make sure the PCB code reads DIH81R, since the 3020 shipped with different board variants, and keep a backup of the original chip in case you need to restore it.
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 @biosarchive. Enginerys does not host this file.
All sources (5)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 8 Jan 2018 | Open file on RM Schematics |
| @abgm_manutencao_bios | 8 Aug 2019 | Open file on RM Schematics |
| @pepeelectronica | 24 Apr 2022 | Open file on RM Schematics |
| @schematics_bios | 25 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 1 Aug 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.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →