Lenovo ThinkServer TD200, Hardware Maintenance Manual

Page: 76 / 346

• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See Chapter 8 “Parts listing, TD200 Machine Types 3724, 3808, 3809, 3815, 3817, 3824, 3826, 3836” on page
257 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.
Component LED Description Action
VRM failure LED Microprocessor 2 VRM has failed or
is incorrectly installed.
1. Reseat the VRM.
2. Replace the following components one at a time, in
the order shown, restarting the server each time:
a. VRM
b. (Trained service technician only) System board
System-board error
LED System-board CPU VRD and/or
power voltage regulators have
failed. (Trained service technician only) Replace the system
board.
Battery failure LED Battery low. 1. Replace the CMOS lithium battery, if necessary.
2. (Trained service technician only) Replace the system
board.
PCI slots error LEDs An error has occurred on a PCI
bus or on the system board. An
additional LED is lit next to a failing
PCI slot. 1. Check the system-event log for information about
the error.
2. If you cannot isolate the failing adapter through the
LEDs and the information in the system-event log,
remove one adapter at a time, and restart the server
after each adapter is removed.
3. If the failure remains, go to
http://www.lenovo.com/support for additional
troubleshooting information.
IMM heartbeat LED Indicates the status of the boot
process of the IMM.
When the server is connected to
power this LED flashes quickly
to indicate that the IMM code
is loading. When the loading is
complete, the LED stops flashing
briefly and then flashes slowly
to indicate that the IMM if fully
operational and you can press the
power-control button to start the
server.
If the LED does not begin flashing within 30 seconds
of when the server is connected to power, complete
the following steps:
1. (Trained service technician only) Use the IMM
recovery switch (on the SW6 switch block) to
recover the firmware.
2. (Trained service technician only) Replace the system
board.
Enclosure manager
heartbeat LED power-on and power-off
sequencing. 1. If the LED flashes at 1Hz, it is functioning properly
and no action is necessary.
2. If the LED is not flashing, (trained service technician
only) replace the system board.
Power-supply LEDs
The following minimum configuration is required for the server to start:
• One microprocessor
• One 1 GB DIMMs
68
ThinkServer TD200 Hardware Maintenance Manual