I have an AMD Athlon 64 X2 4200+ that runs idle at about 45 and 50-55 at 75% usage. I have 2 questions, one, is this too hot and if so what should I do? and two, how can you tell if a processor is a 64 bit processor? Also, whats whats a good heatsink and fan worth putting on this processor?
Those temps are fine. Now for your 64bit question hmm well Athlon 64 x2 the name says it all lol yes your processor can run 64bit. You can check a processor by using CPU-z and you will see under Instructions it will say x86-64 for AMD processors and for Intel it will say EM64T