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Rev 1.0
10 TroubleShooting
10.1 Power Supply Unit
If the Power supplies cannot supply enough power the management module may shut
down the leafs until the power being supplied is sufficient to run the operating leafs. If
the management module does shut down some leafs, it may be necessary to reboot the
chassis to get the shut down leafs up and running again.
As each PSU is plugged in, make sure that the green power LEDs on the PSU comes on.
If the AC power LED is off:
Step 1.
Check that the power cable is the correct power cable for your country.
Step 2.
Check that the power cable is plugged into a working outlet.
Step 3.
Check that the power cable has a voltage within the range of 100 - 240 volts AC.
Step 4.
Remove and reinstall the power cable.
Step 5.
Check the circuit breakers to be sure that the breaker has not tripped.
Step 6.
Check that the power cable is good. Replace the power cable.
Step 7.
If the AC power LED is green but the OK power LED is off or the FAIL LED is on –
Replace the PSU.
10.2 Leaf Board
The power LED for the Leaf board is off:
Step 1.
Make sure that all of the PSUs are showing DC OK.
Step 2.
Uninstall and reinstall the Leaf board.
Step 3.
When the Yellow LED is on, this indicates a fault in the board, uninstall and reinstall
the Leaf board.
Step 4.
If uninstalling and reinstalling the Leaf board does not work, burn the latest FW on the
Leaf board and uninstall and reinstall the Leaf board.
Step 5.
Replace the Leaf board with a new one.
Should any of the leaf boards shut down due to over temperature, it may be necessary
to reboot the chassis.
The Physical link LED for the InfiniBand connector does not come on:
Step 1.
Check that both ends of the cable are connected.
Step 2.
Check that the locks on the ends are secured.
Step 3.
Make sure that the latest FW version is installed on both the HCA card and the switch.
Step 4.
If media adapters are used check that the all connections are good, tight, and secure.
Step 5.
Replace the cable.
The Activity indication does not come on:
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TroubleShooting
Mellanox Technologies
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