E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855 Always verify against HP’s original release notes.
The HP Z240 typically uses a 16MB (128-Mbit) SPI Flash memory chip (such as the Winbond 25Q128 series). hp z240 bios bin file link
Complete Guide to HP Z240 BIOS BIN Files: Recovery and Flashing depending on your specific Z240 generation).
After conducting extensive research, we were able to locate a reliable source for the HP Z240 BIOS bin file. hp z240 bios bin file link
Look for a file named N51_xxxx.bin (or similar, depending on your specific Z240 generation).