BIOS temperature readouts can often be wrong. One time, my BIOS was convinced my CPU temperature was 72 degrees Celsius. I knew that was a load of crap and SpeedFan read it as something around 32 degrees Celsius.
You're right on maximum temperatures, though, don't let that Athlon get over 65 degrees Celsius and try to keep an eye on your graphics card temperature and keep that under 100 degrees Celsius at the maximum. It can take up to 120 degrees Celsius but that is the point of thermal shutdown. Anyways, your graphics card definitely should not be heating up during the installation of Windows or anything but gaming and benchmarking, really. And you can't view your graphics card temperature in the BIOS, I don't think.
My 6600GT happens to run at 60 degrees Celsius idle and will shoot up to 98 degrees Celsius under a load, but that's abnormal for a graphics card. I don't know what it is about mine, but it has no trouble running at those temperatures and I never see any artifacts.
You're right on maximum temperatures, though, don't let that Athlon get over 65 degrees Celsius and try to keep an eye on your graphics card temperature and keep that under 100 degrees Celsius at the maximum. It can take up to 120 degrees Celsius but that is the point of thermal shutdown. Anyways, your graphics card definitely should not be heating up during the installation of Windows or anything but gaming and benchmarking, really. And you can't view your graphics card temperature in the BIOS, I don't think.
My 6600GT happens to run at 60 degrees Celsius idle and will shoot up to 98 degrees Celsius under a load, but that's abnormal for a graphics card. I don't know what it is about mine, but it has no trouble running at those temperatures and I never see any artifacts.