DELL OptiPlex 3020 SFF Wistron DIH81R Tigris SFF 12125-1M
Schematic, BIOS Dell 3020 A15
12125-2 TOP.pdf
12125-2 BOTTOM.pdf
Dell OptiPlex 3020 DIH81R-TIGRIS SFF MB - 12125-2 boardview
DIH81R-TIGRIS SFF MB-12125-2 BIOS
Schematic, BIOS Dell 3020 A15
12125-2 TOP.pdf
12125-2 BOTTOM.pdf
Dell OptiPlex 3020 DIH81R-TIGRIS SFF MB - 12125-2 boardview
DIH81R-TIGRIS SFF MB-12125-2 BIOS
About this board
Dell OptiPlex 3020 SFF DIH81R/Tigris SFF — motherboard 12125-1M.
Dell had this board built by Wistron; Wistron board numbers are 5–6 digits plus a revision. Check the number printed on the PCB before you download.
Files usually needed for this board
- BIOS (full SPI chip dump, .bin)
- Schematic (PDF)
- Boardview (.brd / .bdv / .cad)
Typical reasons to reflash: no POST after a failed BIOS update, a corrupted BIOS chip after a power cut, or a board that powers on with no display.
Back up the original dump first — it contains machine-specific data (serial, UUID, MAC, ME), and you will want it if anything goes wrong.
If you have a working file for this board, please share it below. More files: search 12125-1M in File Finder.
Attachments
DIH81R-TIGRIS SFF MB-12125-2 Bios.zip
4.5 MB · Views: 14
4.5 MB · Views: 14
DELL H81 12125-1M Bios.zip
3.4 MB · Views: 14
3.4 MB · Views: 14
Dell OptiPlex 3020 - DIH81R-TIGRIS SFF MB - 12125-2 Boardview.cad
1.7 MB · Views: 10
1.7 MB · Views: 10
12125-2 TOP.pdf
449.9 KB · Views: 8
449.9 KB · Views: 8
Wistron DIH81R_Tigris SFF 12125-1M Schematic.pdf
3 MB · Views: 8
3 MB · Views: 8
