19481-3 – Dell Inspiron 3891

19481-3 is the Wistron main board used in the Dell Inspiron 3891, Dell Inspiron D11, Dell Vostro 3890 and Dell Vostro D11. 2 files are indexed for this board: 2 BIOS files.

The earliest file dates from April 2023 (BIOS Archive).

BIOS dumps 2

Board facts

Board number19481-3
Designed byWistron
Platform group19XXX
First seen2023-04-09
Source channelsBIOS Archive
About the numberWistron board numbers look like 15217-1; the first two digits usually indicate the design year.

Laptops that use 19481-3

  • Dell Inspiron 3891
  • Dell Inspiron D11
  • Dell Vostro 3890
  • Dell Vostro D11

What these files are for

A BIOS dump is a full image of the board's SPI flash chip. It is written back with an SPI programmer when the original firmware is corrupted, after a chip replacement, or to recover from a failed update. Read and save the original chip first: serial number, DMI data and the Intel ME / AMD PSP state differ between boards.

Tools to open these files

FormatWhat it isOpen with
.rarRAR archive7-Zip or WinRAR
.binBIOS image inside the archive (usually .bin)a CH341A, XGecu T48 / TL866II Plus or RT809H programmer

Questions

Who designed the 19481-3 board?

19481-3 is a Wistron board number used by Dell.

Which laptops use the 19481-3 board?

Files in the catalog link 19481-3 to the Dell Inspiron 3891, Dell Inspiron D11, Dell Vostro 3890 and Dell Vostro D11.

Where do the download links go?

Each button opens the original public Telegram post the file was shared in. ChambersDesignInc.com only indexes and cross-references those posts.