Event Logs - Lenovo x3550 M4 Installation And Service Manual

Table 15. System pulse LEDs
LED
RTMM heartbeat
IMM heartbeat
PCI riser-card LEDs
Use this information to view PCI riser-card LEDs.
The following illustration shows the location of the PCI riser-card LEDs.
Figure 91. PCI riser-card LEDs

Event logs

Error codes and messages displayed in POST event log, system-event log,
integrated management module (IMM2) event log, and DSA event log.
v POST event log: This log contains the most recent error codes and messages
Description
Power-on and power-off
sequencing.
IMM2 heartbeat boot process.
that were generated during POST. You can view the contents of the POST event
Action
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.
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
power-control button to power-on the
server.
4. If this LED does not blink within 30
seconds of connecting a power source to
the server, (trained technician only) replace
the system board.
Chapter 4. Troubleshooting
141