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1-16
System Overview
PCI Module LEDs
This section describes the LED indicators located in the PCI Module and will assist you
in determining the appropriate action to take as the result of a specific LED indications.
PCI Module LEDs include the Power LED, the BMC LED, the PCI Status LEDs 1 and
2 and the Disk Access LED.
POWER LED
The POWER switch of the primary PCI module also functions as a POWER LED. See
Figure 1-4. When AC power is supplied to the modules, the POWER LED on the
primary PCI module illuminates. The POWER switch on the secondary PCI module
will be unlit and will not respond until a failure in the primary PCI module causes the
secondary PCI module to assume primary functionality.
BMC Status LED
The BMC Status LED located on the front of the PCI module (see Figure 1-3)
indicates the status of the Baseboard Management Controller (BMC).
The LED stays green while the server is running normally. If the LED is not green,
there is something wrong with the server.
The Table 1-1 shows the indications of the BMC Status LED and their meanings.
Tips:
!
To determine the cause of trouble, use ESMPRO or the Off-line Maintenance Utility to
view the error log.
!
When you want to restart the server, perform a shutdown if the OS allows you to shut
down the system. If not, perform a reset or forced shutdown, or you can restart the
server by unplug and plugging the power cord.
Table 1-1. BMC Status LED
LED indications
Description
Action
Green
BMC operates
normally and CPU
and PCI modules
are in duplex
mode.
Green (blinking
every 1 second)
CPU or PCI
modules are not in
duplex mode
during operation.
Remount components whose Status LED is red. If the
problem persists, replace that module.
AC power is all off.
Turn on the AC power.
Performing POST.
Wait for a while; it will illuminate in green shortly after
POST.
CPU module error
occurred.
Off
PCI module error
occurred.
After turning off the power, turn it on to restart the
system. If some error message appears on the POST
screen, write it down and contact your sales agent.
Amber
Detected a fatal
temperature error.
If LCD displays some error message, refer to the error
message list (see Chapter 5).
Check if dust is accumulated on internal fans and
confirm that the fan cables are connected firmly. If the
message does not disappear, contact your sales
agent.
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