Compaq ES40CSLP, Installation, User & Service Manual

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Troubleshooting and Diagnostics
Compaq ES40CSLP Rackmount System Installation/User/Service Guide 6–3
Table 6-2 Problems Getting to Console Mode
Symptom Action
Power-up screen is not
displayed. Observe the OCP display for a failure detected during self-tests. See
Section 6.5 for power-up error messages.
Check keyboard and monitor connections.
If the power-up screen is not displayed, yet the system enters console
mode when you press the Return key, check that the console
environment variable is set correctly.
If you are using a VGA monitor as the console terminal, the console
variable should be set to graphics. If you are using a serial console
terminal, the console environment variable should be set to serial.
If console is set to serial, the power-up screen is routed to the COM1
serial communication port or MMJ port and cannot be viewed from the
VGA monitor.
Try connecting a console terminal to the COM1 serial communication
port. When using the COM1 port, you must set the console
environment variable to serial.
If the system has a customized NVRAM file, press the Halt button and
then power up or reset the system. This will bypass the NVRAM
script.
Use the RMC dump command to probe the shared RAM.