https://youtu.be/Ge0EnPz-jWY?si=r9UYdDAKWXk9MKGi
I've watched multiple other guides on youtube and they all do the "thing wrong" that this guy points out (not letting the card idle properly but raising the min frequency above 1khz).
My card is specifically a Gigabyte Windforce 5090 3 OC if that matters.