problems with 2800+

hi there..well today i got a thermaltake sink with fan and arctic silver 5 thermal compound. I installed the new thermal compound and sink...i read the instructions on how to put the compound on took the processor out oft he socket and clan the old compound off. then i put back in the socket and and put on the new headsink..after turn it on i got a message from bios taht the processor has been changed and im like what!!!. so i went to bios (soft menu)
and it says that us a amd 2800+ but the internal speed is 1075mhz..instead of
2.08mhz. the FBS setting is the same as before 166 and multiplier is 12.5 as before. why is it runing at 1025mhz instead of 2.08?

how can i fix this?

 

well i fixed it i only had to restart my pc..thanks not runing normal