User Service Guide, Third Edition - HP Integrity cx2620 Server

Table 5-6 Rear Panel LED Definitions (continued)
DescriptionColorLED/Button
Lit by pressing the associated button, by pressing the corresponding
button on the front panel, or by command from a remote location.
Identifies one server among many. Also tests for a running BMC on
the system board.
BlueLocator
Lit when a power supply failure is detected. Indicates that power
supply has been cycled down or is not fully functional.
AmberPower Supply Fault
Lit when a power supply is operating normally. Indicates that DC
power is being supplied to server circuits.
GreenPower Supply DC Out
Lit when power (-36 to -72 VDC) is supplied to the power supply.
Indicates that source power is available.
GreenPower Supply DC In
Building Up the System
Before you can build up the system, you must first identify the failing CRU.
To identify a failing CRU, follow these steps:
1. Reduce the server to the minimum hardware configuration by disconnecting power and
removing unwanted assemblies.
2. Install assemblies one-at-a-time and check system status.
3. After each assembly is installed, apply power and observe the server for symptoms and
fault indications. If possible, install only known good assemblies.
You must be familiar with error messages, system logs, and accessing logs. For information about
accessing and using logs, see “Event Logs for Troubleshooting Diagnostics” (page 137). After
each troubleshooting step, clear the logs to ensure that you analyze only valid information.
NOTE: Remove the server top cover during this procedure, so you can observe the system
board LEDs and install assemblies. With the top cover removed, the system powers off after two
minutes of operation. After installing an assembly, apply power and immediately check for status
and symptoms. Use the iLO MP to access error messages after the system has powered off.
To build up the system, follow these steps:
1. Disconnect power from the server power supply either at the cabinet or facility power
disconnect device.
WARNING! Ensure that the system is powered off and all power sources are disconnected
from the server prior to removing or installing server hardware.
Voltages are present at various locations within the server whenever a DC power source is
connected. This voltage is present even when the main power switch is turned off.
Failure to observe this warning can result in personal injury or damage to equipment.
2. If present, remove the following components from the system:
• Top cover
• The second power supply
• iLO MP card
• CPU and power module (remove both CPUs if two are installed)
• All DIMMs
• All hard disks
• CD/DVD drive
128 Troubleshooting