Lenovo x3650 M4 BD 5466, Installation And Service Manual

Page: 190 / 1222

Table 21. Light path diagnostics panel LEDs (continued)
• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• If an action step is preceded by "(trained technician only)," that step must be performed only by a trained
technician.
LED Description Action
lit, the memory configuration is
invalid.
Follow steps indicated in Appendix B “UEFI/POST diagnostic
codes” on page 1007 and Appendix A “Integrated management
module II (IMM2) error messages” on page 345.
TEMP The system or the system
component temperature has
exceeded a threshold level. A
failing fan can cause the TEMP
LED to be lit. 1. Make sure that the heat sink is seated correctly.
2. Determine whether a fan has failed. If it has, replace it.
3. Make sure that the room temperature is not too high. See
“Server features and specifications” on page 6 for the
server temperature information.
4. Make sure that the air vents are not blocked.
5. Make sure that the heat sink or the fan on the adapter, or
the optional network adapter is seated correctly. If the fan
has failed, replace it.
6. For more information, go to
http://www.ibm.com/support/entry/portal/docdisplay?
lndocid=SERV-CALL.
FAN A fan has failed, is operating too
slowly, or has been removed. The
TEMP LED might also be lit. 1. Check if your server installed with the adapters mentioned
in Table 38 “Supported dual-port network adapters on
the network connector” on page 295. If yes, make sure
your server compile with the configuration with four fans
installed.
2. Reseat the failing fan, which is indicated by a lit LED near
the fan connector on the system board.
3. Replace the failing fan (see “Removing a hot-swap fan” on
page 311 and “Replacing a hot-swap fan” on page 312).
BOARD An error has occurred on the
system board or the system
battery. 1. Check the LEDs on the system board to identify the
component that caused the error. The BOARD LED can be
lit due to any of the following reasons:
• Battery
• (Trained technician only) System board
2. Check the system-error log for information about the error.
3. Replace the failing component:
• Battery (see “Removing the system battery” on page
319 and “Replacing the system battery” on page 322).
• (Trained technician only) System board (see “Removing
the system board” on page 339 and “Replacing the
system board” on page 341).
HDD A hard disk drive has failed or is
missing. 1. Check the LEDs on the hard disk drives for the drive with a
lit status LED and reseat the hard disk drive.
2. Reseat the hard disk drive backplane.
3. For more information, see “Light path diagnostics LEDs”
on page 174.
4. If the error remains, replace the following components one
at a time, in the order listed, restarting the server after
each:
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Lenovo System x3650 M4 Installation and Service Guide