About Your System 19NIC Indicator CodesEach NIC on the back panel has an indicator that provides information on network activity and link status.See Figure 1-5. Table 1-5 lists the NIC indicator codes.Figure 1-5. NIC IndicatorsLCD Status MessagesThe system's control panel LCD provides status messages to signify when the system is operatingcorrectly or when the system needs attention.The LCD lights blue to indicate a normal operating condition, and lights amber to indicate an errorcondition. The LCD scrolls a message that includes a status code followed by descriptive text. Table 1-6lists the LCD status messages that can occur and the probable cause for each message. The LCDmessages refer to events recorded in the System Event Log (SEL). For information on the SEL andconfiguring system management settings, see the systems management software documentation.CAUTION: Only trained service technicians are authorized to remove the system cover and access any of thecomponents inside the system. See your Product Information Guide for complete information about safetyprecautions, working inside the computer, and protecting against electrostatic discharge.NOTE: If your system fails to boot, press the System ID button for at least five seconds until an error code appearson the LCD. Record the code, then see "Getting Help" on page 147.1 link indicator 2 activity indicatorTable 1-5. NIC Indicator CodesIndicator Indicator CodeLink and activity indicators are off The NIC is not connected to the network.Link indicator is green The NIC is connected to a valid link partner on the network.Activity indicator is amber blinking Network data is being sent or received.1 2Book.book Page 19 Friday, February 3, 2006 11:09 AM
