Not especially - it seems to run about the same temperatures as my old 9800XT. It's running at the standard 492/475MHz core/memory clock speeds. My card was brand new though, so the fan had never been used - perhaps the fan on your card is worn out and/or the thermal paste needs redoing?
The fan works, it runs at full blast until the OS loads and then it slows down, as it should.
I have a Radeon 9800 Pro that runs really, really hot, but it has an heatsink about half the size as the X800's. I will get a thermal probe and measure the temperature on the heatsink of both this Monday.
I can't remember it running that hot in my PC however, it felt just warm. Maybe the fan was running at higher speeds.