I hope not. I don't mind 86C load as long as the cooler doesn't sound like the XFX 7800GT stock "screamer" cooler (i.e., what I have).
I am quite content with the 8800GTS Fatal1ty rental for now, the cooler is nice and silent, although it is making all my PCI cards run hot as hell because of the proximity of the dual slot monster (which covers closer to 3 slots). It's almost heaven though after 2 years of listening to a delta screamer whine every time I start up Warcraft 3. But I am worried about my sound card melting off from the proximity to the GTS, so hopefully this stock cooler is silent...a little warm, okay, I still got 2 slots of PCI space between the GT and the sound card.