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Table 17. System-board-assembly LEDs
LED
System error LED (yellow)
1
Identification LED (blue)
2
BMC status LED (green)
3
BMC heartbeat LED (green)
4
SSP heartbeat LED (green)
5
Rear PCIe riser 1 error LED (yellow)
6
OCP error LED (yellow)
7
ThinkSystem SR675 V3 System Configuration Guide
34
Description and actions
LED on: an error has occurred. Complete the following
steps:
1. Check the identification LED and check log LED and
follow the instructions.
2. Check the Lenovo XClarity Controller event log and
the system error log for information about the error.
3. Save the log if necessary, and clear the log
afterwards.
This LED is used as a presence detection LED. You can
use Lenovo XClarity Controller to light this LED remotely.
Use this LED to locate the server among other servers
visually.
The states of the BMC status LED are as follows:
• LED on: The BMC is alive.
• LED off: The BMC is not ready or not alive. The LED is
in this state when the server is first connected to AC
power. It does not turn on until the SSP (Synchronous
Serial Port) is ready.
The BMC heartbeat LED helps you identify the BMC
status.
• LED on: The BMC is not alive.
• LED Blinking: The BMC is alive.
• LED off: The BMC is not alive.
The states of the SSP (Synchronous Serial Port) heartbeat
LED are as follows:
• LED on: The SSP is synchronized and ready.
• LED off: The serial port interface is not synchronized
yet.
LED on: an error has occurred to the rear PCIe riser 1.
LED on: an error has occurred to the OCP slot the LED
represents. Complete the following steps:
1. Make sure the PCIe cable is connected to the
appropriate downstream PCIe slot 15-16 or PCIe
connector 1-12.
2. Make sure both ends of the cable are securely seated
in the PCIe slots.
3. Replace the cable.
4. (trained technician only) replace the system board
assembly. See "System board assembly replacement
(trained technician only)" in ThinkSystem SR675 V3
User Guide or ThinkSystem SR675 V3 Hardware
Maintenance Guide.
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