Troubleshooting Using LED Indicators

Your hp Integrity cx2600 Server has LED indicators located on the front and rear of the server that you can use to determine what repair action is required. (Additional LEDs within the server are described in the hp Integrity cx2600 Operation and Maintenance Guide, which is included on the CD provided with your system.) Descriptions of front and rear panel LEDs are provided in the following sections.

Front Panel LEDs

The front panel LEDs show you the system status at a glance. They include four diagnostic LEDs, and the System, LAN, and power LEDs. The front panel LEDs are listed in the following tables, together with system status and/or probable cause descriptions of likely system failures.

Figure 4-1 Front Panel LEDs

Table 4-2 Front Panel LED Definitions

LED/ Button	System State	Flash Rate	Color	Description
System LED	Off	Off	Off	System is off.
System LED	Running	Flashing at 0.5 Hz	Green	System is booting or running EFI.
System LED	Running	Steady	Green	System normal—the operating system is up and running.
System LED	Warning	Flashing at 1 Hz	Amber	Attention required. Check the four diagnostic LEDs and the MP Status log for information. The LED will turn off when the MP log is accessed.
System LED	Fault	Flashing at 2 Hz	Red	Fault detected. Check the four diagnostic LEDs and the MP Status log for information. The LED can be turned off by the MP DC command, or by correcting the problem.
Diag LEDs (1 thru 4)	-	-	-	Display system error condition (when System LED is flashing yellow) or fault condition (when System LED is flashing red). Refer to Table 4-3 “Diagnostic LED Displays and Meanings” for error code information.
LAN LED	Off	Off	N/A	The system is off (no power to LAN circuits) or hardware failure.
LAN LED	Active	Steady	Green	LAN link is established but LAN is inactive.
LAN LED	Active	Flashing at rate of LAN activity	Green	LAN is active.
Disk Activity LED	Off	Off	Off	Disk not active.
Disk Activity LED	Active	Flashing at rate of LAN activity	Green	Disk is active.
Disk Status LED	Off	Off	Off	Pass through mode.
Disk Status LED	Off	Steady	Amber	Drive fault.
Disk Status LED	Active	Steady	Green	Drive operating normally.
CD Activity LED	Active	Flashing at rate of LAN activity	Green	Disk is active.
Locator LED/Button	(Flag)	Flashing at 1 Hz	Blue	System locator LED may be remotely or locally activated/deactivated to call attention to a particular server.
Power LED	No power	Off	Off	DC power not available to the server.
Power LED	Standby power	Flashing at 1 Hz	Green	DC power is connected to the server, but power is off. Standby power (3.3V) is applied to some server circuits.
Power LED	Main power on	Steady	Green	Power is applied to all server circuits.

Table 4-3 Diagnostic LED Displays and Meanings

Diag 1 LED	Diag 2 LED	Diag 3 LED	Diag 4 LED	System LED	Description
Off	Off	Green	Red	Flashing Yellow	Fan 3 warning. BMC is reporting that one fan rotor is turning more slowly than expected (or stopped). Investigate problem at the first opportunity.
Off	Green	Off	Red	Flashing Yellow	Fan 2 warning. BMC is reporting that one fan rotor is turning more slowly than expected (or stopped). Investigate problem at the first opportunity.
Off	Green	Green	Red	Flashing Yellow	Fan 5 warning. BMC is reporting that one fan rotor is turning more slowly than expected (or stopped). Investigate problem at the first opportunity.
Off	Red	Green	Red	Flashing Yellow	Power supply 2 warning. The power supply is functioning but reporting an error condition. Replace the power supply at the first opportunity.
Off	Red	Red	Off	Flashing Yellow	No video warning. No video output is available from the management processor. Replace the MP board.
Green	Off	Off	Red	Flashing Yellow	Fan 1 warning. BMC is reporting that one fan rotor is turning more slowly than expected (or stopped). Investigate problem at the first opportunity.
Green	Green	Off	Red	Flashing Yellow	Fan 4 warning. BMC is reporting that one fan rotor is turning more slowly than expected (or stopped). Investigate problem at the first opportunity.
Green	Green	Red	Off	Flashing Yellow	System battery voltage low. Replace the system battery.
Green	Red	Off	Red	Flashing Yellow	Power supply 1 warning. The power supply is functioning but reporting an error condition. Replace the power supply at the first opportunity.
Red	Off	Green	Green	Flashing Yellow	Memory load order warning. Verify that DIMMs are correctly installed.
Red	Green	Green	Red	Flashing Yellow	Intake air temperature hot. Check for blockage. Clean air intake openings.
Red	Red	Off	Green	Flashing Yellow	CPU 1 temperature warning. Check for blockages. Investigate the problem at the first opportunity.
Red	Red	Green	Off	Flashing Yellow	CPU 0 temperature warning. Check for blockages. Investigate the problem at the first opportunity.
Red	Red	Red	Red	Flashing Yellow	Undefined error condition (warning only). Check the SEL for information.

Off	Off	Green	Red	Flashing Red	Fan 3 failure. BMC is reporting that both fan rotors are turning more slowly that expected (or stopped). Replace the fan, fan control board, or system board.
Off	Green	Off	Red	Flashing Red	Fan 2 failure. BMC is reporting that both fan rotors are turning more slowly that expected (or stopped). Replace the fan, fan control board, or system board.
Off	Green	Green	Red	Flashing Red	Fan 5 failure. BMC is reporting that both fan rotors are turning more slowly that expected (or stopped). Replace the fan, fan control board, or system board.
Off	Green	Red	Off	Flashing Red	VRM overvoltage fault. Replace the system board.
Off	Red	Off	Off	Flashing Red	System firmware error. Power down the server, wait 20 seconds and resume operation. If the problem continues, replace the system board.
Off	Red	Off	Red	Flashing Red	VRM power pod fault. Replace the system board.
Off	Red	Green	Red	Flashing Red	Power supply 2 fault. Replace power supply 2, the power supply interface board, or the system board.
Green	Off	Off	Red	Flashing Red	Fan 1 failure. BMC is reporting that both fan rotors are turning more slowly that expected (or stopped). Replace the fan, fan control board, or system board.
Green	Off	Green	Red	Flashing Red	CPU 1 turbofan failure. Replace CPU 1, the CPU power module, or the system board.
Green	Off	Red	Off	Flashing Red	VRM undervoltage fault. Replace the system board.
Green	Green	Off	Red	Flashing Red	Fan 4 failure. BMC is reporting that both fan rotors are turning more slowly that expected (or stopped). Replace the fan, fan control board, or system board.
Green	Green	Green	Red	Flashing Red	CPU 0 turbofan failure. Replace CPU 0, the CPU power module, or the system board.
Green	Red	Off	Red	Flashing Red	Power supply 1 fault. Replace power supply 1, the power supply interface board, or the system board.
Green	Red	Green	Red	Flashing Red	12V range error. Something is loading the 12V source. This can be either power supply, the power supply interface, the system board, or any using circuit. Replace items (1 at a time) to identify the cause.
Red	Off	Off	Green	Flashing Red	Memory bank error. Verify that DIMMs are correctly installed.
Red	Green	Off	Off	Flashing Red	Memory mismatch fault. DIMMs of different size are installed in a single quad. Replace DIMMs as required.
Red	Green	Green	Off	Flashing Red	Memory access fault. Check error messages in the SEL. Reseat or replace DIMMs as required.
Red	Green	Green	Green	Flashing Red	Memory error detected. Check error messages in the SEL. Reseat or replace DIMMs as required.
Red	Green	Green	Red	Flashing Red	Intake air overtemperature fault. Check for blockages. Replace the system board.
Red	Green	Red	Off	Flashing Red	BMC firmware error. Power down the server, wait 20 seconds and resume operation. If the problem continues, replace the system board.
Red	Green	Red	Green	Flashing Red	MP firmware error. Power down the server, wait 20 seconds and resume operation. If the problem continues, replace the management processor.
Red	Red	Off	Green	Flashing Red	CPU 1 overtemperature fault. Check for blockages. Replace CPU 1 or the system board.
Red	Red	Green	Off	Flashing Red	CPU 0 overtemperature fault. Check for blockage. Replace CPU 0 or the system board.
Red	Red	Green	Green	Flashing Red	Either or both CPUs not detected. Check CPU installation and replace CPU, power module, or system board if necessary.
Red	Red	Red	Red	Flashing Red	Undefined error condition (catastrophic failure). Check the SEL for information.

Rear Panel LEDs

The rear panel LEDs show you LAN and power supply status at a glance. The rear panel LEDs are listed in the following table, together with descriptions of LAN and power status indications. Additional information about these LEDs is provided in the hp Integrity cx2600 Operation and Maintenance Guide. (The hp Integrity cx2600 Operation and Maintenance Guide is included on the CD provided with your system.)

Figure 4-2 Rear Panel LEDs

Table 4-4 Rear Panel LED Definitions

LED/ Button	Color	Description
System Management LAN Activity LED	Green	When lit, shows that port is linked.
System Management LAN Speed LED	Green	When off (and Activity LED is lit), shows that port is linked to 10 Mb LAN.When lit, shows that port is linked to 100 Mb LAN.
Locator	Blue	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.
Power Supply Fault	Amber	Lit when a power supply failure has been detected. Indicates that power supply has been cycled down or is not fully functional.
Power Supply DC Out	Green	Lit when a power supply is operating normally. Indicates that DC power is being supplied to server circuits.
Power Supply DC In	Green	Lit when power (-36 to -72 VDC) is being supplied to the power supply. Indicates that source power is available.
Gigabit LAN Gbit LED (top)	Green	When off, no 1000 Mbps link has been detected.When lit, port is linked at 1000 Mbps.
Gigabit LAN 100 Mbit LED (2nd from top)	Green	When off, no 100 Mbps link has been detected.When lit, port is linked at 100 Mbps.
Gigabit LAN Link LED (2nd from bottom)	Green	When off, no 10 Mbps link has been detected.When lit, port is linked at 10 Mbps.
Gigabit LAN Activity LED (bottom)	Green	When off, no LAN activity has been detected.When lit, port is linked at 1000 Mbps.
Management Processor Self Test LED (top)	Green	When off, self test is not active.When lit, MP is running self test.
Management Processor 10BT LED (2nd from top)	Green	When off, no link detected or 100BT link is active.When flashing, indicates 10BT LAN activity.When lit steady, indicates that 10BT link has been established.
Management Processor 100BT LED (2nd from bottom)	Green	When off, no link detected or 10BT link is active.When flashing, indicates 100BT LAN activity.When lit steady, indicates that 100BT link has been established.
Management Processor LAN Standby Power LED (bottom)	Green	When off, standby power is not applied to Management LAN circuits.When lit, power is connected to the server but the server is not on.

Troubleshooting Using LED Indicators

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Front Panel LEDs

Rear Panel LEDs