Unreal overheating problems with x800 XT PE. HELP!

[Bookcase14]

So my system, ever since I built the damn thing, has been giving me problems. Whether it was the motherboard BIOS, or the RAM timings, the list goes on. Anyway, I think i've solved every issue pertaining to my motherboard and RAM, but what's this? ANOTHER problem. My videocard is a sapphire Radeon x800 XT PE and this thing heats up like a mother. I Have a PCI slot vent fan that sucks hot air from the card as precaution, and I have my cards heatsink running at 100%, on top of that? I'm downclocking the sucker. Core should be a 520, but I have it at 500. So when I play Counter-Strike:Source, my videocard heats up to 95 degrees Celcius. That's right, CELCIUS. 5 degrees away from boiling point. Sometimes it holds up, and sometimes my system restarts, (I don't know if that is videocard related or not) Any suggestions on what the HELL to do? Has anyone else had this problem? Thanks a lot guys.