if it will not help (well, at least you will not hear gurgling sound from your pump, just a high frequency tone) - next thing to check is thermal paste on die itself.
and also if you have to open your gpu - you also can try to connect your pump to motherboard and control it speed, so it will be less noisy.
my 2080ti hybrid sitting on 58C under heavy load @full speed with overclock (so card consume about 350-370 watts) and at 70c in games @low rpm (like 800-1200rpm instead of 2000).