... /For HP DV4 486723-001 laptop motherboard DV4 486723-001 Intel CPU, Nvidia G98-600-U2,laptop motherboard 100% fully tested working ... the hardware installed well or in good condition, such as CPU,RAM stick,screen,LCD cable,HDD and so on. 2 ... cooling paste or special Silicagel on VGA-card,Northbridge and CPU.5,Finally, check all the hardware installed well or not ...