Heat Sink - HP ProBook 4230s Maintenance And Service Manual

Heat sink

All heat sink spare part kits include replacement thermal material.
Description
Heat sink
Before removing the heat sink, 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. Access door (see
b. WLAN module (see
c. WWAN module (see
d. Keyboard (see
e. Top cover (see
f. Modem module (see
g. System board (see
h. Fan (see
Remove the heat sink:
1. Position the system board upside-down.
2. To remove the heat sink, in the order indicated, loosen the four captive Phillips screws (1) — (4)
that secure the heat sink to the system board.
Battery on page
Access door on page
WLAN/Bluetooth combo card on page
WWAN module on page
Keyboard on page
Top cover on page
Modem module on page
System board on page
Fan on page 67)
41).
43).
47)
54)
55)
61)
63)
Component replacement procedures
Spare part number
646028-001
49)
69