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Troubleshooting 40
• See the server LEDs and their status.
Item Indicators Status Description
1
NIC LED Blinking green Ongoing activity
2
HDD LED Blinking green Ongoing activity
3
Power button Amber/Green Standby mode/Power on mode
4
Health LED Amber/Blue/Red Non-critical issue/Ongoing activity/Critical
issue
5
Network port Blinking green Ongoing network activity
6
Network port Green 10/100/1000M connection
Health LED Behavior:
• Critical issues
o CPU initial failed
o Memory initial failed
o Fan failure or missing
o Memory uncorrectable ECC
• Non-critical issues
o Voltage fault
o Temperature fault
Preparing the server for diagnosis
1. Be sure the server is in the proper operating environment with adequate power, air conditioning, and
humidity control. Refer to the server documentation for required environmental conditions.
2. Record any error messages displayed by the system.
3. Remove all diskettes and CDs from the media drives.
4. Power down the server and peripheral devices if you will be diagnosing the server offline. Always
perform an orderly shutdown, if possible. This means you must: