Lenovo ThinkServer RD220 Hardware Maintenance Manual page 49

• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See the parts listing in the Hardware Maintenance Manual to determine which components are customer
replaceable units (CRU) and which components are field replaceable units (FRU).
• If an action step is preceded by "(Trained service technician only)," that step must be performed only by
a trained service technician.
LED Description
OVER The server was shut down due to a
power-supply overload condition on
SPEC
one of the power channels. The power
supplies are using more power than the
maximum rating.
LOG An error message has been written to
the system-event log
LINK Reserved.
PS A power supply has failed.
PCI An error has occurred on a PCI bus or
on the system board. An additional LED
will be lit next to a failing PCI slot.
™SP The service processor (the IMM) has
failed.
FAN A fan has failed, is operating too slowly,
or has been removed. The TEMP LED
might also be lit.
TEMP The system temperature has exceeded
a threshold level. A failing fan can
cause the TEMP LED to be lit.
Action
1. If any of the 12v power channel error LEDs (A, B, C, D, E, or
AUX) on the system board are lit also, see "Solving power
problems" on page 124. (See "Power-supply LEDs" on page
45 for the location of the power channel error LEDs.)
2. Check the power supply LEDs for an error indication (AC LED
and DC LED are not both lit, or the power-supply error LED is
lit). Swap power supplies 1 and 2 with each other.
• If the error follows the power supply, replace the failed
power supply.
• If the error remains with the power bay, (trained service
technician only) replace the system board.
3. Remove optional devices from the server.
Check the IMM system event log and the system-error log for
information about the error. Replace any components that are
identified in the error logs.
1. Check the power supply LEDs for an error indication (AC LED
and DC LED are not both lit). See "Power-supply LEDs" on
page 45 for more information.
2. Make sure that the failing power supply is correctly seated.
3. Replace the failed power supply.
1. Check the LEDs on the PCI slots to identify the component
that is causing the error.
2. Check the system-event log for information about the error.
3. If you cannot isolate the failing adapter through the LEDs and
the information in the system-event log, remove one adapter
at a time from the failing PCI bus, and restart the server after
each adapter is removed.
4. Call for service.
1. Remove power from the server; then, reconnect the server to
power and restart the server.
2. Update the firmware on the IMM.
3. Call for service
Replace the failing fan, which is indicated by a lit LED near the
fan connector on the system board.
1. Check the error log to identify where the over-temperature
condition was measured. If a fan has failed, replace it.
2. Make sure that the room temperature is not too high.
See Table 1 "Features and specifications" on page 16 for
temperature information.
3. Make sure that the air vents are not blocked.
4. Call for service.
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Chapter 5 Diagnostics