SajinSo fans don’t ramp back down when the card cools back down under 77c?
SajinIn that case it sounds like the vbios on the card has aggressive temp/fan settings set within it. It's normal for a card to override your settings if things get too hot. 77c is within normal operating temps though, so it shouldn't be happening at 77c.
SajinTrying a different vbios on the card may fix it.
WestfieldI'm having the same issue with the same card once it hits 77. Overrides everything and goes full blast. It is very annoying sounding. Glad I found this thread before I wasted time trying to figure out what was going on.