HP Compaq CQ42 BIOS Dump
Part of HP Compaq CQ42
the HP Compaq CQ42: 8 BIOS files found in the source channels. Image size: 1 MB or 2 MB. Flash chip noted in the file names: W25Q80BV. 3 of them are marked as tested by the uploader. Board revisions: E, C, F and H.
BIOS files 8
Main boards used in HP Compaq CQ42
- DA0AX2MB6E1
- DA0AX1MBH61
- DA0AX2MB6E0
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
| Format | What it is | Open with |
|---|---|---|
| .rar | RAR archive | 7-Zip or WinRAR |
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |