Do not use a BIOS bin file from the Compaq 615 or 620. While similar, the EC (Embedded Controller) firmware differs, leading to keyboard or fan failure.
: A well-known repository for schematic diagrams and BIOS files. Note that some files may require a premium account to download. Bios-Mods.com compaq 610 bios bin file
Enabling hidden menus, adding SLIC for OEM Windows activation, or changing the boot logo. Do not use a BIOS bin file from the Compaq 615 or 620
Inside the extracted folder, look for a folder named or similar. the EC (Embedded Controller) firmware differs
You can extract the .bin file from a downloaded SoftPaq ( .exe ) by using a utility like 7-Zip . Once extracted, look for files with .bin or .fd extensions.