Owners Manual

Troubleshooting list
Table 43. Troubleshooting list
Issue description Trigger event for amber LED
(MC/IM/BC)
Root cause Troubleshooting step
Fan fail (keeps 100%
duty)
1 Check HTPB.
2 Check G5.5 FW version in
IM/MC/BC.
3 Check "llcDebug" command.
BC Power LED amber
• For I2C communication and
MOSFET failure, BC dumps
EEPROM log.
• For FPGA conguration failed,
BC may rebooting again and
again.
1 MAC address missed or
incorrect.
2 Ethernet link is down.
3 Wrong fan table le.
4 FPGA image is wrong.
5 FPGA conguration failed.
6 Mosfet failed.
7 I2C communication failed.
1 Ensure fan table and FPGA
image s correct.
2 LAN connection is ne.
3 Ensure MAC address is
correct and present.
4 Ensure there is no HW
damage.
Fan Zone 1 fail LED
amber
• If 1 fan fails, BC will move to fan
table C.
• If 2 fan fails, BC will move to
fan table D and fan will rotate
on 100% PWM.
1 or more than 1 fans become
absent from left group of 6 fans
(fan no: 1~6).
Ensure all fans insert in fan wall
properly.
Fan Zone 2 fail LED
amber
• If 1 fan fails, BC will move to fan
table C.
• If 2 fan fails, BC will move to
fan table D and fan will rotate
on 100% PWM.
1 or more than 1 fans become
absent from right group of 6 fans
(fan no: 7~12).
Ensure all fans insert in fan wall
properly.
IM status LED amber
1 MAC address missed or
incorrect.
2 I2C communication fail.
1 Set MAC address using
llcDebug command if its
incorrect or missed.
2 Ensure there is no HW
damage.
BC status LED blinking
amber
LED will blink on every 1s interval
and ‘LastUpgradeStatus’ property
on Bc target will show CFGERROR.
Dierent Infrastructure property
between BC and MC (G5/G5.5).
Ensure both BC and MC have same
Infrastructure property.
IM status LED blinking
amber
LED will blink on every 1s interval
and ‘LastUpgradeStatus’ property
on IM target will show CFGERROR.
Dierent Infrastructure property
between IM and MC (G5/G5.5).
Ensure both IM and MC have same
Infrastructure property.
MC Error LED blinking
amber
LED will blink on every 1s interval
and ‘LastUpgradeStatus’ property
on Rack target will show
CFGERROR.
Dierent Infrastructure property
between IM, MC and BC (G5/
G5.5).
Ensure IM, MC and BC have same
Infrastructure property.
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160 Installation and Service Manual
Troubleshooting list