I'm looking for suggestions on what power supply unit (PSU) to use with the RTX 5090. Ideally, I want a model that minimizes coil whine, so low ripple suppression is a must. Any recommendations?
3 Answers
I personally use the MSI MEG Ai1300P with my RTX 5090. It's been great for me, and under heavy load, I typically see around 525W usage. It’s set on a power curve to manage it better.
If you're open to spending more, take a look at the Seasonic Prime TX-1600 Noctua Edition. It's a premium PSU and seems to perform well according to reviews.
For the RTX 5090, I'd say a minimum of 1000W is necessary. A solid choice could be the Montech Century II 1050W, especially for basic needs.
I'm looking for something more high-end though.

I've had two Noctua units, and they both had noticeable coil whine for me!