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The original was posted on /r/sffpc by /u/marianairam on 2025-06-22 12:14:06+00:00.

Thank you for not suggesting to „not buy a card with a badly designed connector“ - I agree that Nvidia really dropped the ball here but I am looking for practical advice.

From my research so far it is advisable to

• Make sure the connector is fully seated on both the GPU and the PSU side.
• Avoid unnecessary unplugging and replugging.
• Undervolt the GPU.
• Use some sort of monitoring tool like the Thermal Grizzly Wireview Pro. Unfortunately it is not compatible with the 5090FE as far as I can tell.

I have found conflicting about using the supplied 12VHPWR cable from the PSU vs. using the adapter from Nvidia. In my mind, using the adapter just adds more possible points of failure but I could also be wrong.

I am using a Corsair SF1000. Any help is greatly appreciated!