{HEAD ~ The computer system} 8, wherein {TAIL ~ the active cooling mechanism} is activated when the heat sink is removed from the computer apparatus and deactivated when the heat sink is inserted in the computer apparatus 
wherein
{ HEAD ~ The computer system } 8 , wherein { TAIL ~ the active cooling mechanism } is activated when the heat sink is removed from the computer apparatus and deactivated when the heat sink is inserted in the computer apparatus
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH