HP 4320t HP 4320t Mobile Thin Client - Maintenance and Service Guide - Page 79

System board, Memory module see

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System board NOTE: The system board spare part kit includes replacement thermal material. Description System board (includes replacement thermal material) Spare part number 614524-001 Before removing the system board, follow these steps: 1. Shut down the computer. 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 Battery on page 36). 5. Remove the following components: a. Switch cover (see Switch cover on page 37) b. Keyboard (see Keyboard on page 39) c. Speakers (see Speakers on page 46) d. Palm rest (see Palm rest on page 48) e. WLAN module (see WLAN module on page 54) f. Solid-state module (see Solid-state module on page 50) g. DVD-ROM drive (see DVD-ROM drive on page 43) h. Display assembly (see Display assembly on page 62) i. Top cover (see Top cover on page 67) 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) ● WLAN module (see WLAN module on page 54) ● Modem module (see Modem module on page 69) ● Processor (see Processor on page 60) Remove the system board: 1. Position the computer right-side up with the front toward you. 2. Disconnect the USB board cable (1) from the system board. 3. Disconnect the power connector cable (2). 4. Remove the slotted T8 2.5×5.0 screw (3) that secures the system board to the base enclosure. Component replacement procedures 71

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System board
NOTE:
The system board spare part kit includes replacement thermal material.
Description
Spare part number
System board
(includes replacement thermal material)
614524-001
Before removing the system board, follow these steps:
1.
Shut down the computer.
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
Battery
on page
36
).
5.
Remove the following components:
a.
Switch cover (see
Switch cover
on page
37
)
b.
Keyboard (see
Keyboard
on page
39
)
c.
Speakers (see
Speakers
on page
46
)
d.
Palm rest (see
Palm rest
on page
48
)
e.
WLAN module (see
WLAN module
on page
54
)
f.
Solid-state module (see
Solid-state module
on page
50
)
g.
DVD-ROM drive (see
DVD-ROM drive
on page
43
)
h.
Display assembly (see
Display assembly
on page
62
)
i.
Top cover (see
Top cover
on page
67
)
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
)
●
WLAN module (see
WLAN module
on page
54
)
●
Modem module (see
Modem module
on page
69
)
●
Processor (see
Processor
on page
60
)
Remove the system board:
1.
Position the computer right-side up with the front toward you.
2.
Disconnect the USB board cable
(1)
from the system board.
3.
Disconnect the power connector cable
(2)
.
4.
Remove the slotted T8 2.5×5.0 screw
(3)
that secures the system board to the base enclosure.
Component replacement procedures
71