HP consumer dv7-6b56nr notebook a1t84uar#aba Manuale Utente

System board 

✎

All system board spare kits include replacement thermal material.

Before removing the system board, follow these steps: 

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, 

and then shut it down through the operating system. 

2. Disconnect all external devices connected to the computer. 

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then 

unplugging the AC adapter from the computer. 

4. Remove the battery (see 

). 

5. Remove the following components: 

a. Primary and secondary hard drive covers (see 

)

b. Primary and secondary hard drives (see 

) 

c. Optical drive (see 

d. Memory module (see 

e. WLAN module (see 

f. Switch cover and keyboard (see 

)

g. Speaker assembly (see 

h. Bluetooth module (see 

i. Display assembly (see 

j. Top cover (see 

)

When replacing the system board, be sure that the following components are removed from the defective system 
board and installed on the replacement system board: 

■

■

)

■

)

■

WLAN module (see 

)

■

)

■

Modem module (see 

)

■

■

Processor (see 

With discrete graphics subsystem and 1 GB of dedicated memory

574680-001

With discrete graphics subsystem and 512 MB of dedicated memory

574681-001

With UMA graphics subsystem and shared memory

574679-001