Since a few days, even after proper shutdown my pc's fans, processor keep running, though screen goes black. Cabinet's light also remain on (windows 8 64 bit & with windows 7 32 bit, it hangs on shut down screen). Earlier it was working fine.
Config: i3 with gigabyte H55m-s2, Asus nvidia geforce 210 silent, 8 gb ram.
Recent changes: Replaced case fan and extended RAM
When i unplug the fan or remove the new RAM, then also same problem persists.
CPUs Temp: 35-45
GPU Temp: 30-40