Table 29. LEDs description (continued)
Scenario
AP0
LED
AP1
LED
Fatal
Error
LED
FPGA
heartbeat
LED
note
XCC
heartbeat
LED
note
Actions
No system power
(FPGA heartbeat
LED off)
Off Off Off Off Off If the AC power is on, but the
system board assembly does
not have power, then:
1. Check the power supply
unit (PSU) or power
interposer board (PIB) if
any. If the PSU or PIB has
any error, replace it.
2. If the PSU or PIB is good,
do the following:
a. Replace the system I/O
board.
b. Replace the processor
board.
XCC firmware
recoverable error
Blink
N/A Off N/A N/A Information only. No action is
required.
XCC firmware is
recovered from
error
Blink
N/A Off N/A N/A Information only. No action is
required.
UEFI firmware
authentication
failure
N/A
Blink
Off N/A N/A Information only. No action is
required.
UEFI firmware is
recovered from
authentication
failure
N/A On Off N/A N/A Information only. No action is
required.
System is OK
(FPGA heartbeat
LED is On)
On On Off On On Information only. No action is
required.
Note: For locations of the FPGA LED and XCC heartbeat LED, see
“System-board-assembly LEDs” on page
493
.
General problem determination procedures
Use the information in this section to resolve problems if the event log does not contain specific errors or the
server is inoperative.
If you are not sure about the cause of a problem and the power supplies are working correctly, complete the
following steps to attempt to resolve the problem:
1. Power off the server.
2. Make sure that the server is cabled correctly.
3. Remove or disconnect the following devices if applicable, one at a time, until you find the failure. Power
on and configure the server each time you remove or disconnect a device.
• Any external devices.
• Surge-suppressor device (on the server).
• Printer, mouse, and non-Lenovo devices.
496
ThinkSystem SR665 V3 User Guide
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