Basic Troubleshooting
Keyboard LEDs
LED Color LED Activity State/Message
Num Lock Green Flashing Memory error
Caps Lock Green Flashing No video
Scroll Lock Green Flashing System board failure, prior
to video
The FailSafe Boot Block ROM allows for system recovery in the
unlikely event of a ROM flash failure, as for example if a power
failure were to occur during a ROM upgrade. The Boot Block is a
flash-protected section of the ROM that checks for a valid system
ROM flash when power to the system is turned on.
The following table lists the various keyboard light combinations
used by the Boot Block ROM, as well as the meaning and action
associated with each combination. Refer to the Desktop Management
Guide for more detailed information.
2-4 Getting Started
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