System Pulse Leds - Lenovo System x3650 M5 Installation And Service Manual

The following table describes the problems that are indicated by various combinations of the power-supply
LEDs on a dc power supply and suggested actions to correct the detected problems.
DC power-supply LEDs
IN OUT
On On/
Blinking
Off Off
Off Off
Off On/
Blinking
Off On/
Blinking
On Off
On Off
On On/
Blinking

System pulse LEDs

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 37 for the location of these LEDs).
Error (!) Description
Normal operation.
Off
Off No ac power to the
server or a problem
with the ac power
source.
On The power supply
has failed.
Off The power supply
has failed.
On The power supply
has failed.
Off Power-supply not
fully seated, faulty
system board, or
the power supply
has failed.
On The power supply
has failed.
The power supply
On
has failed.
Action
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.
Replace the power supply.
Replace the power supply.
Replace the power supply.
1. Reseat the power supply.
2. Use the Power Configurator
utility to ensure current
system power consumption
is under limitation. For
more information and to
download the utility, go
to http://www.ibm.com/
systems/bladecenter/
resources/ powerconfig.html.
3. Check the error LEDs on
the system board and the
IMM2 error messages. Follow
steps in "Power problems" on
page 93 and "Solving power
problems" on page 103 until
the problem is solved.
Replace the power supply.
Replace the power supply.
Notes
When the OUT LED
is blinking as a 1Hz
rate, the PSU is at
STANDBY mode, i.e.
no DC power output
from this PSU
This is a normal
condition when no ac
power is present.
Typically indicates a
power-supply is not
fully seated.
.
Chapter 3 Troubleshooting
77