HP ProBook 5320m HP ProBook 5320m Notebook PC Maintenance and Service Guide - Page 70

Fan and heat sink, unplugging the AC adapter from the computer. - high power consumption

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Removal and replacement procedures Fan and heat sink ✎ The fan and heat sink spare part kit includes replacement thermal material. Description Fan/Heat sink Spare part number 618830-001 ✎ To properly ventilate the computer, allow at least 7.6 cm (3 in) of clearance on the left side of the computer. The computer uses an electric fan for ventilation. The fan is controlled by a temperature sensor and is designed to turn on automatically when high temperature conditions exist. These conditions are affected by high external temperatures, system power consumption, power management/battery conservation configurations, battery fast charging, and software requirements. Exhaust air is displaced through the ventilation grill located on the left side of the computer. Before removing the fan and 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 "Battery" on page 4-7). 5. Remove the following components: a. Accessory cover (see "Mass storage device" on page 4-9) b. Keyboard (see "Keyboard" on page 4-23) c. Button board and cable (see "Button board and cable" on page 4-26) d. Top cover (see "Top cover" on page 4-28) e. System board (see "System board" on page 4-33) 4-36 Maintenance and Service Guide

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4–36
Maintenance and Service Guide
Removal and replacement procedures
Fan and heat sink
✎
The fan and heat sink spare part kit includes replacement thermal material.
✎
To properly ventilate the computer, allow at least
7.6 cm
(3 in) of clearance on the left side of the computer. The
computer uses an electric fan for ventilation. The fan is controlled by a temperature sensor and is designed to
turn on automatically when high temperature conditions exist. These conditions are affected by high external
temperatures, system power consumption, power management/battery conservation configurations, battery fast
charging, and software requirements. Exhaust air is displaced through the ventilation grill located on the left side
of the computer.
Before removing the fan and 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
“Battery” on page 4-7
).
5. Remove the following components:
a.
Accessory cover (see
“Mass storage device” on page 4-9
)
b.
Keyboard (see
“Keyboard” on page 4-23
)
c.
Button board and cable (see
“Button board and cable” on page 4-26
)
d.
Top cover (see
“Top cover” on page 4-28
)
e.
System board (see
“System board” on page 4-33
)
Description
Spare part number
Fan/Heat sink
618830-001