Lenovo RD210 User Manual download pdf (Page 179)

Table 13. EasyLED panel LEDs (continued)

LED Description Action

CPU A microprocessor has

failed.

1. Make sure that the failing microprocessor,

which is indicated by a lit LED on the

system board, is install correctly.

2. (Trained service technician only) Replace

the microprocessor.

DASD A hard disk drive error has

occurred.

1. Check the LEDs on the hard disk drives and

replace the hard disk drive with the lit LED.

2. Replace the hard disk drive backplane.

RAID A RAID controller error

has occurred.

1. Make sure that a RAID controller is installed

correctly.

2. Check the system-error log for information

about the error.

BRD An error has occurred on

the system board.

1. Check the LEDs on the system board to

identify the component that caused the error.

2. Check the system-error log for information

about the error.

Diagnostic programs and messages

The diagnostic programs are the primary method of testing the major components

of the server. As you run the diagnostic programs, text messages are displayed on

the screen and are saved in the test log. A diagnostic text message indicates that a

problem has been detected and provides the action you should take as a result of

the text message. Please see the Hardware Maintenance Manual for additional

information on diagnostic programs and messages.

Power-supply diagnostics

The following minimum configuration is required for the dc LED on the power supply

to be lit:

v Power supply

v Power cord

The following minimum configuration is required for the server to start:

v One microprocessor in microprocessor socket 1

v One 1 GB DIMM on the system board

v One power supply

v Power cord

v Six cooling fans

Chapter 7. Solving problems 163

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