Lenovo THINKSERVER 3821 User Manual
Page 87
v
Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v
See the Chapter 8, “Parts Listing, TD200x Machine Types 3719, 3821, 3822, and 3823,” on page 237 to
determine which components are customer replaceable units (CRU) and which components are field
replaceable units (FRU).
v
If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Lit EasyLED
diagnostics LED with
the system-error or
information LED also
lit
Description
Action
System board (BRD)
An error occurred on the system
board.
1. Check the LEDs on the system board to identify
the component that is causing the error. The BRD
LED can be lit for the following conditions:
v
Failed or missing battery
v
Failed voltage regulator
2. Check the system-event log for information about
the error.
3. Replace any failed or missing replaceable
components, such as the battery.
4. (Trained service technician only) If a voltage
regulator has failed, replace the system board.
PCI bus
A PCI adapter has failed.
1. See the system-event log (see “System-event log”
2. Check the LEDs on the PCI slots to identify the
component that is causing the error, and reseat the
failing adapter.
3. Replace the following components one at a time,
in the order shown, restarting the server each time:
a. Failing adapter
b. (Trained service technician only) System board
Fan
A fan has failed or is operating too
slowly.
1. Reinstall the removed fan.
2. If an individual fan LED is lit, replace the fan.
3. (Trained service technician only) Replace the
system board.
Power supply
A power supply has failed or has
been removed.
Note: In a redundant power
configuration, the dc power LED on
one power supply might be off.
1. Check the individual power-supply LEDs.
2. Reseat the following components:
a. Power supply
b. (Trained service technician only) Power-supply
cage cables
3. Replace the following components one at a time,
in the order shown, restarting the server each time:
a. Power supply
b. (Trained service technician only) Power-supply
cage
Chapter 5. Diagnostics
79