ConnectX-4 cable error/power budget exceeded

Infrastructure & Networking Adapters and Cables
1

I am getting an error on a ConnectX-4 (MCX416A -CCAT) adapter when I plug in a 100GbE optical transceiver into one of the two available ports.

It looks like the error displayed has a fix on the ConnectX-5 line by enabling ADVANCED_POWER_SETTINGS=True/DISABLE_SLOT_POWER_LIMITER=True.

Is there a way to fix this on the X-4 line? These commands do not appear to be supported there. Has anyone else seen this issue?

Here is the previous post and the error that I get:

mlx5_core 0000:42:00.1: Port module event[error]: module 1, Cable error, Power budget exceeded

2

Hi Chris,

Please use latest Firmware and MFT version

Latest Firmware:

And use the following commands:

mlxconfig -d /dev/mst/mt4117_pciconf0 set ADVANCED_POWER_SETTINGS=True

mlxconfig -d /dev/mst/mt4117_pciconf0 set DISABLE_SLOT_POWER_LIMITER=True

Thanks,

Samer

3

Hi Samer, this doesn’t work. I am on the most up to date firmware and MFT version. Trying to use the mlxconfig set commands you specified gives back an error saying the parameters are not supported.

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