when i look at my system information sometimes it says 2.20ghz?

Question

other times it says 991ghz and 189 ghz what does this mean ive been told it should be 2.20ghz why is it changing and what does it mean

Answer 1

You probably have an AMD X2 which is designed to only clock as high as need be at any given time.

There is nothing wrong with your unit.
For detailed specs & verification of any CPU on a PC please download & use this free utility :

http://www.cpuid.com/download/cpu-z-142.zip

regards,
Philip T

Answer 2

listed to the guy that has just answered before me. i would have said the same thing. without the part with Philip T