Lenovo 6431 Bedienungsanleitung PDF herunterladen (Seite 178)

Error LEDs

The following illustration shows the system boardoard LEDs. The system board has

error LEDs that will help to locate the source of the error. Run the diagnostic

programs to find out the cause of the error (see “Running the diagnostic programs”

on page 164).

1 Boot block jumper (JP6)

2 Clear CMOS jumper (JP1)

3 Mini-BMC force update jumper (JP3)

The server is designed so that LEDs remain lit when the server is connected to an

ac power source but is not turned on, provided that the power supply is operating

correctly. This feature helps you to isolate the problem when the operating system

is shut down.

Many errors are first indicated by a lit system-error LED on the front-panel

assembly of the server. If this LED is lit, one or more LEDs elsewhere in the server

might also be lit and can direct you to the source of the error.

Important: If the system-error LED on the front of the server is lit but there are no

other error indications, clear the BMC system-event log. This log does not clear

itself, and if it begins to fill up, the system-error LED will be lit. Also, after you

complete a repair or correct an error, clear the BMC system-event log to turn off the

system-error LED on the front of the server.

Before you work inside the server to view the LEDs, read the safety information that

begins on page vii and “Handling static-sensitive devices” on page 60.

160 ThinkServer TS100 Types 6431, 6432, 6433, and 6434: Hardware Maintenance Manual

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Lenovo 6431 Bedienungsanleitung Seite 178