Rattling sound from the RM650x Corsair PSU

[N1K]

Dear forum,

several weeks ago I have bought myself a new PC configuration.

Here's the PC build specs:

Asus Z790-A Wi-Fi MBO
Intel i5-13600K CPU
Corsair Vengeance 2x16GB DDR5 5600MHz
WD 500GB SSD BLACK SN850 M.2 NVMe x4 Gen4
Corsair RM650x PSU
MSI Radeon RX570 graphics card
Fractal Define 7 Compact case
Scythe Mugen Black CPU cooler

My GPU is set to 59fps max and fans on the card are very silent, running less than 1000 rpm when gaming.

I have an issue with the Corsair PSU, I can hear a rattling sound or a diesel car sound coming from the PSU fan. This PC configuration is inaudible during work (home office, browsing, watching video etc.) since the PSU fan is OFF. Once I start gaming and the PSU needs more power I can hear that rattling sound coming from the PSU until the fan shuts down.

The Corsair support instructed me to tighten screws on the PSU, which of course didn't help as the screws are already tightened. The issue here is definitely the PSU.

It is worth mentioning that 2 years ago I have also bought a new PC configuration with Corsair RM650W PSU which is very silent even at load. This time I ate the marketing talk and decided to go for a Corsair PSU with even better components than RM and a magnetic levitation fan. It appears that I should have bought the RM650 version instead.

Attached you may find recording I made with my mobile phone. It's not a high quality sound, but you'll hear what needs to be heard to get the idea. I would also like to say that this PC is very stable and it's only the CPU fan that's faulty in this config.

Is anyone else having this issue with mentioned PSU? Can I do something to fix this or I can RMA this thing?

P. S. I am huge fan and long time customer of Corsair PSU and Memory products and hold to that firmly for all of my PC builds and this is the first time I've had an issue like this.

Thanks in advance!

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Edited December 16, 2022 by N1K