HP 15-g039ca HP 15 Notebook PC Compaq 15 Notebook PC HP 250 G3 Notebook PC HP - Page 89
Heat sink assembly, Keyboard see
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Heat sink assembly NOTE: The heat sink assembly spare part kit includes replacement thermal materials. Description Heat sink for use in models with an AMD processor and UMA graphics Heat sink for use in models with an AMD processor and discrete graphics Heat sink for use in models with an Intel processor and UMA graphics NOTE: i3-3227U processors use 767539-001 Heat sink for use in models with an Intel processor and discrete graphics NOTE: i3-3227U processors use 767538-001 Heat sink for use in models with Intel Pentium or Celeron processors and UMA graphics Heat sink for use in models with Intel i3-3217U processors and discrete graphics Heat sink for use in models with Intel i3-3217U processors and UMA graphics Spare part number 753895-001 762728-001 759880-001 759881-001 767537-001 767538-001 767539-001 NOTE: To properly ventilate the computer, allow at least 7.6 cm (3.0 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 heat sink assembly, 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 49), and then remove the following components: ● Keyboard (see Keyboard on page 55) ● Top cover (see Top cover on page 58) ● WLAN module (see WLAN module on page 66) ● System board (see System board on page 71) To remove the heat sink assembly: 1. Position the system board upside down. 2. Loosen the screws on the heat sink (1) that secure the heat sink assembly to the system board. Component replacement procedures 81