HP ENVY dv4t-5300 HP Envy dv4 Notebook PC Maintenance and Service Guide - Page 65

the defective system board and installed on the replacement system board

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Before removing the system board, follow these steps: 1. Shut down the computer. 2. Disconnect the power from the computer by unplugging the power cord from the computer. 3. Disconnect all external devices from the computer. 4. Remove the battery (see Battery on page 34), and then remove the following components: a. Service door (see Service door on page 35) b. Hard drive (see Hard drive on page 36) c. Optical drive (see Optical drive on page 39) d. WLAN module (see WLAN module on page 43) e. Keyboard (see Keyboard on page 46) f. Top cover (see Top cover on page 49) 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: ● Memory module (see Memory module on page 41 ● RTC battery (see RTC battery on page 42 ● Fan/heat sink assembly (see Fan/heat sink assembly on page 59) ● Processor (see Processor on page 64) Component replacement procedures 57

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Before removing the system board, follow these steps:
1.
Shut down the computer.
2.
Disconnect the power from the computer by unplugging the power cord from the computer.
3.
Disconnect all external devices from the computer.
4.
Remove the battery (see
Battery
on page
34
), and then remove the following components:
a.
Service door (see
Service door
on page
35
)
b.
Hard drive (see
Hard drive
on page
36
)
c.
Optical drive (see
Optical drive
on page
39
)
d.
WLAN module (see
WLAN module
on page
43
)
e.
Keyboard (see
Keyboard
on page
46
)
f.
Top cover (see
Top cover
on page
49
)
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:
●
Memory module (see
Memory module
on page
41
●
RTC battery (see
RTC battery
on page
42
●
Fan/heat sink assembly (see
Fan/heat sink assembly
on page
59
)
●
Processor (see
Processor
on page
64
)
Component replacement procedures
57