HP Rp2430 rp24xx A180 User Manual - Page 66
A-Class Server Selftest Failures/Warnings
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A-Class System Service A-Class Server Trouble Shooting A-Class Server Selftest Failures/Warnings A power-on selftest is conducted each time power is applied to the server. Failures that occur at this point will either prevent selftest from completing or, upon initial completion of selftest, display warnings on the console. NOTE Warnings will include a brief description of the fault. If the selftest fails before any output appears on the console, the three front panel LEDs (Power, Heartbeat, and LAN connection, shown below) will blink in patterns to identify which section of selftest failed. To troubleshoot selftest failures using the front panel LEDs, proceed to the next section. To troubleshoot selftest failures by chassis code analysis, refer to the Chassis Code Summary section. Troubleshooting with Light-Emitting Diode (LED) Interpretation The LED icons shown above are physically located on the right-hand side of the server, when you are facing the front. The icon on the far right is a green circle that, under normal conditions, emits a steady light when server power is on. The middle icon of the three is an amber heart shape that emits, under normal conditions, a "heartbeat" blinking light when the server is operating normally. The left-most icon is also amber and represents the Local Area Network (LAN) signal. Under normal conditions, the LAN icon blinks irregularly as dictated by LAN signal activity. Additional selftest information is provided in the sub-sections that follow. Successful Power-on Selftest. When power is applied to the server, the green POWER icon will light upon successful completion of the power supply selftest, which takes approximately 2 seconds. If the green POWER LED fails to light, check the power source. If the power source is valid, the problem is usually in the A-Class server power supply. Power supply failures are repaired by replacing the A-Class Exchange Base Unit (EBU). Refer to the Replacing an A-Class Server Exchange Base Unit (EBU) section. After the green POWER icon comes on, both the amber HEARTBEAT and amber LAN ACTIVITY icons will momentarily light and go out. When selftest is complete, the firmware Main Menu screen will display on the console, and the green POWER icon will emit a steady light. LED icon states will appear as shown below: Off Off On The following table shows how to interpret front panel LED blinking codes when selftest has failed and the firmware Main Menu screen is inaccessible. During the conditions shown in this table, the green POWER icon is ON. 66 Chapter 3