BIOS archive for the Dell OptiPlex 3011 all-in-one, with board references 12064-1 and 48.3KD01.011 in the name, a 5.89 MB RAR. The 48.x code style is a PCB part number of the kind printed on the board itself, so compare it to your unit before use. The image is used to reflash the SPI chip with an external programmer when the system fails to POST or is stuck after a failed update. Dump the original chip first, as Dell firmware regions can hold service tag and system-specific data.
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 (6)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 11 Jul 2021 | Open file on RM Schematics |
| @BiosSchematicWorld | 9 Dec 2021 | Open file on RM Schematics |
| @pepeelectronica | 24 Apr 2022 | Open file on RM Schematics |
| @schematiclaptopramkushwaha | 13 Jul 2025 | 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 →