Troubleshooting
General Troubleshooting
Server unable to find the adapter
The adapter no longer works
Adapters stopped working after installing another adapter
Link indicator light is off
Link light is on, but with no communication established
Event message received of insufficient power
•
Ensure that the adapter is placed correctly
•
Make sure the adapter slot and the adapter are compatible
Install the adapter in a different PCI Express slot
•
Use the drivers that came with the adapter or download the latest
•
Make sure your motherboard has the latest BIOS
•
Try to reboot the server
•
Reseat the adapter in its slot or a different slot, if necessary
•
Try using another cable
•
Reinstall the drivers for the network driver files may be damaged or deleted
•
Reboot the server
•
Try removing and re-installing all adapters
•
Check that cables are connected properly
•
Make sure your motherboard has the latest BIOS
•
Try another port on the switch
•
Make sure the cable is securely attached
•
Check you are using the proper cables that do not exceed the recommended lengths
•
Verify that your switch and adapter port are compatible
•
Check that the latest driver is loaded
•
Check that both the adapter and its link are set to the same speed and duplex settings
•
When [ adapter's current power consumption ] > [ PCIe slot advertised power limit ] – a warning
message appears in the server's system even logs (Eg. dmesg: "Detected insufficient power on the PCIe
slow")
•
It's recommended to use a PCIe slot that can supply enough power.
•
If a message of the following format appears – "mlx5_core 0003:01:00.0: port_module:254:(pid 0): Port
module event[error]: module 0, Cable error, One or more network ports have been powered down due
to insufficient/unadvertised power on the PCIe slot" please upgrade your Adapter's firmware.
•
If the message remains – please consider switching from Active Optical Cable (AOC) or transceiver to
Direct Attached Copper (DAC) connectivity.
103