cant boot to login prompt in mandrake 10
 

Hi,
When i want to boot mandrake 10,since 2 days the boot process is runing but
then there is a sequince of these messages:
CPU#0:Runing in modulated clock mode
CPU#0:Temperature above threshold
then system halting,and can't go to the login prompt,i tried the failsafe
there is also these messages but finally it can boot to single user mode and there is login prompt.that is right the enviroment temperature is hot.
plz tell me how i can solve this problem to boot to normal login prompt.
:(