System information

Troubleshooting Hardware
Book Title
3-30
Catalyst 5000 Series Startup
When you start up a Catalyst 5000 series LAN switch, the following should occur:
• The PS1 and PS2 LEDs on the supervisor engine module faceplate should be green.
• The system fan assembly should be operating and the Fan LED on the supervisor engine module
should come on.
• The Status LED on the supervisor engine module and all interfaces should be orange until the
boot is complete.
When the system boot is complete, the supervisor engine module should initialize the switching
modules. The status LED on each switching module goes on when initialization has been completed,
and the console screen displays a script and system banner similar to the following:
ATE0
ATS0=1
Catalyst 5000 Power Up Diagnostics
Init NVRAM Log
LED Test
ROM CHKSUM
DUAL PORT RAM r/w
RAM r/w
RAM address test
Byte/Word Enable test
RAM r/w 55aa
RAM r/w aa55
EARL test
BOOTROM Version 1.4, Dated Dec 5 1995 16:49:40
BOOT date: 00/00/00 BOOT time: 03:18:57
SIMM RAM address test
SIMM Ram r/w 55aa
SIMM Ram r/w aa55
Start to Uncompress Image ...
IP address for Catalyst not configured
BOOTP will commence after the ports are online
Ports are coming online ...
Cisco Systems Console
If problems occur, try to isolate the problem to a specific subsystem. The Catalyst 5000 series LAN
switches have the following subsystems:
• Power subsystem—This subsystem includes the power supplies and power supply fans.
• Cooling subsystem—This subsystem includes the chassis fan assembly, which should be
operating when the system power is on.
Possible Problem Solution
Bootup problem
Step 1 Check to see whether the fan is operating. If it is not, check the fan or the 12V
power supply.
Step 2 If the system shuts down after being on for a short time, check the power
supply.
Step 3 If the power supply appears operational, the router might have shut down due to
overheating. Ensure that the chassis intake and exhaust vents are clear.
Step 4 If the system does not boot up but the System OK LED is on, check the 12V
power supply to make sure it is not faulty.
Step 5 If the system partially boots but the System OK LED is not on, check the 5V
power supply to make sure it is not faulty.