original laptop colling fan for HP Pavilion G4-2000 G7 g7-2000 G6 G6-2000 G7-2240US G4-2320TX G4 2301TX 2318TX 2226TX new original cpu fan for hp g4 2000 g6 2000 g7 2240us g7 2000 g6 2278dx 683193 001 685477 001 4pins brand new and original