Troubleshooting The Power Subsystem; Troubleshooting The Cooling Subsystem - Cisco 7000 Series Hardware Installation And Maintenance Manual

Troubleshooting the Power Subsystem

If it is not displayed, refer to the section "Connecting the Console Terminal" in the chapter
"Installing the Router" to verify that the terminal is set correctly and that it is properly connected to
the RP console port.
Troubleshooting the Power Subsystem
Check the following to help isolate the problem:
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If you are unable to resolve the problem, or if you determine that either the power supply or power
cable is faulty, contact a service representative for instructions.

Troubleshooting the Cooling Subsystem

Check the following to help isolate the problem:
•
4-6 Cisco 7010 Hardware Installation and Maintenance
RP1 (68040) processor with 16384K bytes of memory.
(text omitted)
Press RETURN to get started!
On the interface processor end of the power supply, is the DC OK LED on?
— If yes, the power source is good, and the power supply is functional.
— If no but the fans are operating and LEDs on the processor modules are on, suspect a faulty
power supply LED. The RP uses +5, +12, –12 VDC, and the fan tray uses +24 VDC;
therefore, if both the RP and the fans are operating, all internal DC lines are within tolerance.
— If no and there is not other obvious activity, first suspect that the power switch is not fully in
the on (|) position. Examine the switch and ensure that it is completely pushed into the on (|)
position. (Refer to the section "Starting the Router" in the chapter "Installing the Router")
— If the system power switch is set correctly and the DC OK LED remains off, suspect the
power source or the power cable. Turn off the power switch, connect the power cable to
another power source if one is available, and turn the switch back on. If the LED then goes
on, the problem is the first power source.
— If the LED fails to go on after you connect the power supply to a new power source, swap
the power cable with a replacement if one is available and turn the switch back on. If the DC
OK LED then goes on, the power cable is faulty. (The AC power cable for the Cisco 7000 is
compatible with the Cisco 7010. You supply the DC power cable.)
— Ensure that the fan tray is seated properly. Refer to the section "Replacing the Fan Tray" in
the chapter "Maintenance" to remove and reseat the fan tray. Ensure that the fan control
board edge connector is inserted fully in the backplane socket. After you replace the chassis
cover panel, try starting the system again.
— If the LED still fails to go on when connected to a different power source with a new power
cable, the power supply is probably faulty. If a spare power supply is available, replace the
existing power supply with the spare and restart the system. (Refer to the section "Removing
and Replacing the Power Harness Cover" in the chapter "Maintenance.") If the DC OK LED
then goes on, return the faulty power supply for replacement.
When you start up the system, do the fans go on?
To determine whether the fans are operating, listen for the fan motors. In noisy environments,
place your hand next to the left side of the chassis (when facing the interface processor end of the
router) to feel for air being forced out the side vents.