FailSafe Boot Block ROM
The FailSafe Boot Block ROM facilitates system recovery in the unlikely event of a ROM flash failure, for example, if a power failure occurs during a ROM upgrade. The Boot Block is a
■If the system ROM is valid, the system starts normally.
■If the system ROM fails the validation check, the FailSafe Boot Block ROM provides enough support to start the system from a user ROMPaq diskette that will program the system ROM with a valid image.
IMPORTANT: The workstation ships with the diskette drive enabled. If the diskette drive is disabled, the FailSafe Boot Block ROM will override the disabled component to accommodate a system ROM recovery in the event a system ROM failure occurs.
Because there is no video or hard drive support from the Boot Block ROM, the keyboard lights communicate information. When the Boot Block detects an invalid system ROM, the system sounds a series of beeps (one long and three short) and flashes the three keyboard lights.
To recover the system after hearing the FailSafe Boot Block beeps:
1.Remove any diskettes from the diskette drive and turn off the power.
2.Insert a user ROMPaq diskette into the diskette drive.
3.Turn on power to the system.
If a Setup Password has been established, the Caps Lock light will turn on.
4.Enter the Setup Password.
If the system successfully starts from the diskette and successfully reprograms the ROM, the three keyboard lights will turn on.
Compaq Professional Workstation AP200 Reference Guide
Writer: M. Church Project: Compaq Professional Workstation AP200 Reference Guide Comments:
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