Good luck.
Most partners
do not accept RMA's for coil whine. I assume you tried out the following options:
Best option is to
return the card before you're out of the return window. But chances are big that you get the same issues again with a new card of the same type. Before returning the card you could also try to "
burn in" the coils. Just run something heavy demanding like
Furmark or
MSI Kombustor for 24hrs straight. But have an eye on it in case your connector catches fire, lol.
Another option is to try out a different PSU (BeQuiet, Corsair, or something else in the top class). With a PSU that has better ripple you can dramatically reduce coil whine.
Cultists PSU Tier List (also check the annotations *[1][8] for your current PSU, "Phanteks | Revolt X")
Cybenetics PSU Database (detailed reports incl. ripple tests for download)
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[1] Units experiencing
tripping issues with high transient power draw GPUs like AMD Vega, 6900 XT and Nvidia RTX3080/3090. Generally fixed in newer batches.
*
[8] Seasonic PRIME based units experience shutdowns with RTX3080/3090 (and possibly RX6900 XT) GPUs. The cause is not the OCP tripping but a PSU design flaw as evident by the PSU not latching off on shutdown and 1000W+ models being affected too. Doesn’t manifest in 100% cases as it’s also dependent on motherboard model and GPU OC. Seasonic provides a new 24-pin cable to fix this via support.