Bios DELL 14Z-5423 DMB40 11289-1
14-5423 11289-1 tested by PKBIOS LAB Clear Me
boardview Dell 5423 - DMB40 Intel MB - 11289-1 Boardview
Wistron_DMB40_(BMW-Z4-DIS) 11289-1 dmb40_intel_mb_a00_20120402_Dell Inspiron 14z-5423
REV : A00
About this board
Files for the Dell 14Z-5423 DMB40 motherboard, board number 11289-1.
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.
What this thread covers
- BIOS (full SPI chip dump, .bin)
- Schematic (PDF)
- Boardview (.brd / .bdv / .cad)
Usually needed when the laptop powers on with a black screen after a BIOS update, is stuck in a boot loop, or is locked with a BIOS password.
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 11289-1 in File Finder.
Last edited:
