ideal temperature for a AMD Xp1.6
ideal---> 0 c on idel and 10c underload
chill---> 10c on idel 15c underload
extremely cool---> 15c on idel 20c underload
very cool---> 20c on idel 25c underload
cool---> 25c on idel 30c underload
good tweaker's rig---> 35c on idel 40c unuderload
most other tweaker's rig---> 40c on idel 45c underload( my cpu temperature at the moment)
normal---> 45c on idel 50c underload
warm---> 50c on idel 55c underload
very warm---> 55c on idel 60c underload
hot---> 60c on idel 65c underload
anything above the 65 mark is considered 2 hot by most plp, so it's good 2 keep your cpu under 60c, even lower if possible.
these are just based on what i think anyway, different plp have different opinion, as long as your system runs stable, that's all it matters.