Failsafe Boot Block; Recovering The Computer By Using Failsafe Boot Block Recovery Mode; Workstation Security - HP Z230 Maintenance And Service Manual

FailSafe Boot Block

FailSafe Boot Block enables BIOS recovery in the unlikely event of a ROM flash failure. For example,
if a power failure occurs during a ROM upgrade, Boot Block uses a flash-protected section of the
ROM to verify a valid system ROM flash when power is restored to the computer.
If the system ROM is valid, the computer starts normally.
If the system ROM fails the validation check, FailSafe Boot Block provides enough support to start the
computer from a BIOS image CD created from a SoftPaq. The BIOS image CD programs the system
ROM with a valid image.
When Boot Block detects an invalid system ROM, the computer power LED blinks red eight times and
the computer beeps eight times; then the computer pauses for two seconds. On some models, a Boot
Block recovery mode message appears.
In preparation for system recovery, use the BIOS CD media file in the SoftPaq to create a BIOS
image CD or USB key.

Recovering the computer by using FailSafe Boot Block recovery mode

To recover the computer after it enters Boot Block recovery mode:
1. Remove any media such as USB keys or disks in the optical disk drives.
2. Insert a BIOS image CD into the DVD drive or insert a USB BIOS image flash drive, such as an
HP DriveKey, into a USB port.
3. Turn off the computer, and then turn it back on.
If no BIOS image CD or USB media is found, you are prompted to insert one and restart the
computer.
If a setup password has been established, the caps lock light is illuminated and you are
prompted for the password.
4. Enter the setup password.
If the computer starts from the CD or flash drive and successfully reprograms the ROM, three
keyboard lights are illuminated and a rising-tone series of beeps signals successful recovery.
5. Remove the CD or flash drive and turn off the computer.
6. Restart the computer.

Workstation security

This section provides information about providing system security through asset tracking, password
security, hard drive locking, and chassis locks.
Desktop management 41