System Pulse Leds - Lenovo x3650 M5 Installation And Service Manual

DC power-supply LEDs
IN OUT Error (!)
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 32 for the location of these LEDs).
Table 5. System pulse LEDs
LED
IMM2 heartbeat
74
Lenovo System x3650 M5 Installation and Service Guide
Description
On The power supply
has failed.
The power supply
Off
has failed.
The power supply
On
has failed.
Power-supply not
Off
fully seated, faulty
system board, or
the power supply
has failed.
The power supply
On
has failed.
On The power supply
has failed.
Description
IMM2 heartbeat boot process.
Action
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 91 and "Solving power
problems" on page 101 until
the problem is solved.
Replace the power supply.
Replace the power supply.
Action
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.
3. When this LED goes off momentarily and
then starts blinking slowing (approximately
1Hz), this indicates that IMM2 is fully
operational. You can now press the
Notes
Typically indicates a
power-supply is not
fully seated.