Lenovo ThinkSystem SR655 V3 - Page 220

Table 14. System-board-assembly LEDs (continued)
LED
Description
Action
3 XCC heartbeat
LED (green)
The XCC heartbeat LED helps
you identify the XCC status.
• Blinking (about one flash per
second): XCC is working
normally.
• Blinking at other speeds or
always on: XCC is at the initial
phase or is working
abnormally.
• Off: XCC is not working.
• If the XCC heartbeat LED is always off or always on, do
the following:
– If XCC cannot be accessed:
1. Re-plug the power cord.
2. Check and ensure that the system I/O board
and the firmware and RoT security module are
installed correctly. (Trained technician only)
Reinstall them if needed.
3. (Trained technician only) Replace the firmware
and RoT security module.
4. (Trained technician only) Replace the system I/
O board.
– If XCC can be accessed, replace the system I/O
board.
• If the XCC heartbeat LED is blinking fast over 5
minutes, do the following:
1. Re-plug the power cord.
2. Check and ensure that the system I/O board and
the firmware and RoT security module are installed
correctly. (Trained technician only) Reinstall them
if needed.
3. (Trained technician only) Replace the firmware and
RoT security module.
4. (Trained technician only) Replace the system I/O
board.
• If the XCC heartbeat LED is blinking slowly over 5
minutes, do the following:
1. Re-plug the power cord.
2. Check and ensure that the system I/O board and
the firmware and RoT security module are installed
correctly. (Trained technician only) Reinstall them
if needed.
3. If the problem remains, contact Lenovo Support.
4 FPGA heartbeat
LED (green)
The FPGA heartbeat LED helps
you identify the FPGA status.
• Blinking (about one flash per
second) : FPGA is working
normally.
• On or off: FPGA is not
working.
If the FPGA heartbeat LED is always off or always on, do
the following:
1. Replace the processor board.
2. If the problem remains, contact Lenovo Support.
210 ThinkSystem SR655 V3 User Guide