HP Z400 Workstation - Manual (Page 43)

Determining current BIOS
To determine the current BIOS of the workstation during system power up:
1. Wait for F10=setup to appear on the lower right corner of the screen.
2. Press F10 to enter the F10 Setup utility.
The F10 Setup utility displays the workstation BIOS version under File > System Information.
3. Note the workstation BIOS version so that you can compare it with the BIOS versions that
appear on the HP website.
ENWW Updating the workstation 35