Lenovo System x3250 M5, Инструкция по установке и обслуживанию

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Table 13. Power-supply LEDs
AC Power-supply LEDs
AC DC Error Description Action Notes
On On Off Normal
operation
Off Off Off No ac power
to the server or
a problem with
the ac power
source. 1. Check the ac power to the server.
2. Make sure that the power cord is
connected to a functioning power
source.
3. Restart the server. If the error remains,
check the power-supply LEDs.
4. If the problem remains, replace the
power-supply.
This is a normal
condition when no
ac power is present.
On Off Off Faulty system
board or faulty
power supply 1. Turn off the server and disconnect
the power cord from the server; then,
reconnect the power cord.
2. If the system board error (fault) LED is
not lit, replace the power supply.
3. (Trained technician only) If the system
board error LED is lit, replace the
system board.
Typically indicates
that a power supply
is not fully seated.
This is a normal
condition before
turning on the
system.
On Off or
Flashing
On Faulty power
supply Replace the power supply.
On On On Power supply
is faulty but still
operational Replace the power supply.
System pulse LEDs
This section describes the system pulse LEDs on the system board that monitors the system power-on and
power-off and boot progress.
The following LEDs are on the system board and monitor the system power-on and power-off sequencing
and boot progress (see “System-board LEDs” on page 29 for the location of these LEDs).
Table 14. System pulse LEDs
LED Description Action
RTMM heartbeat Power-on and power-off
sequencing. 1. If the LED blinks at 1Hz, it is functioning
properly and no action is necessary.
2. If the LED is not blinking, (trained technician
only) replace the system board.
IMM2 heartbeat IMM2 heartbeat boot process. The following steps describe the different stages
of the IMM2 heartbeat sequencing process.
1. When this LED is blinking fast
(approximately 4Hz), this indicates
that the IMM2 code is in the loading
process.
2. When this LED goes off momentarily, this
indicates that the IMM2 code has loaded
completely.
Chapter 4
.
Troubleshooting
121