Lenovo ThinkSystem SR645 V3 - General Problem Determination Procedures

Table 27. LEDs description (continued)
Scenario AP0 LED AP1 LED
Fatal
Error
LED
FPGA
heart-
beat
LED
note
XCC
heart-
beat
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
196
.
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.
• Each adapter.
• Hard disk drives.
Chapter 8. Problem determination 199