Mpu Failure - HP FlexFabric 12900E series Installation Manual

Remove and reinstall the fan tray to make sure it is installed securely in the slot.
4.
Verify that the empty LPU slots and power supply slots are installed with filler panels. Install
5.
filler panels in empty slots.
Replace the fan tray.
6.
If the problem persists, contact Hewlett Packard Enterprise Support.
7.

MPU failure

Symptom
The RUN LED for the MPU is off.
Solution
To resolve the problem:
Verify that the power system is operating correctly. For more information, see
1.
failure."
Remove and reinstall the MPU to make sure it is installed securely. For more information, see
2.
"Installing
Press the RESET button on the MPU to reset the MPU. After the MPU is reset, verify that the
3.
corresponding RUN LED is on.
If the switch has empty MPU slots, install the MPU in the empty MPU slot, and verify that the
4.
MPU can operate correctly.
If the problem persists, contact Hewlett Packard Enterprise Support.
5.
NOTE:
• On the 12916E and 12908E switches, the MPU and LPU slot numbers are marked on the ejector
lever seats at the left and right sides of the slots. The switching fabric module slot number is
marked above the slot.
• On the 12904E switch, the MPU slot number is marked on the left side of the slot. The LPU slot
number is marked on the ejector lever seats at the left and right sides of the slot. You can see the
switching fabric module slot numbers through the openings in the fan trays, as shown in callout 3
and callout 6 in the
LPU failure
Symptom
On the MPU, the RUN LED for the LPU is off.
Solution
To resolve the problem:
Verify that the MPU is operating correctly. For more information, see
1.
Verify that the system software is compatible with the LPU. Upgrade the system software if it is
2.
not compatible with the LPU.
Calculate the total power consumption, and make sure your power supplies can provide
3.
enough power. For more information, see
Remove and reinstall the LPU to make sure it is installed securely. For more information about
4.
installing an LPU, see
If the switch has empty LPU slots, install the card in an empty LPU slot. If the LPU operates
5.
correctly, the previous slot is faulty.
FRUs."
Figure 60.
"Installing
"Appendix B FRUs and compatibility
FRUs."
66
"Power supply
"MPU failure."
matrixes."