HP ENVY TouchSmart 15-j119wm HP ENVY 15 Notebook PC and HP ENVY TouchSmart 15 - Page 79

Heat sink, Turn the system board upside down, with the front toward you.

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Heat sink NOTE: The heat sink spare part kit includes replacement thermal material. Description For use only on computer models equipped with an AMD processor and discrete memory For use only on computer models equipped with an AMD processor and a graphics subsystem with UMA memory For use only on computer models equipped with the Intel HM87 chipset and a GeForce 750M graphics subsystem For use only on computer models equipped with the Intel HM87 chipset and a GeForce 740M graphics subsystem For use only on computer models equipped with the Intel HM87 chipset and a graphics subsystem with UMA memory Spare part number 720576-001 720539-001 720542-001 722389-001 720541-001 Before removing the heat sink, follow these steps: 1. Turn off 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 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 40), and then remove the following components: a. Service door (see Service door on page 41) b. mSATA SSD (see mSATA SSD on page 42) c. Hard drive (see Hard drive on page 45) d. Base enclosure (see Base enclosure on page 52) e. Display assembly (see Display assembly on page 54) f. Fan (see Fan on page 62) g. System board (see System board on page 63) Remove the heat sink: 1. Turn the system board upside down, with the front toward you. NOTE: Steps 2 and 3 apply to computer models equipped with an AMD processor and a graphics subsystem with discrete memory. 2. Following the 1 through 7 sequence stamped into the heat sink, loosen the four Phillips PM2.0×11.0 captive screws and the three Phillips PM2.0×7.5 captive screws (1) that secure the heat sink to the system board. Component replacement procedures 69

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Heat sink
NOTE:
The heat sink spare part kit includes replacement thermal material.
Description
Spare part number
For use only on computer models equipped with an AMD processor and discrete memory
720576-001
For use only on computer models equipped with an AMD processor and a graphics subsystem
with UMA memory
720539-001
For use only on computer models equipped with the Intel HM87 chipset and a GeForce 750M
graphics subsystem
720542-001
For use only on computer models equipped with the Intel HM87 chipset and a GeForce 740M
graphics subsystem
722389-001
For use only on computer models equipped with the Intel HM87 chipset and a graphics
subsystem with UMA memory
720541-001
Before removing the heat sink, follow these steps:
1.
Turn off 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 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
40
), and then remove the following components:
a.
Service door (see
Service door
on page
41
)
b.
mSATA SSD (see
mSATA SSD
on page
42
)
c.
Hard drive (see
Hard drive
on page
45
)
d.
Base enclosure (see
Base enclosure
on page
52
)
e.
Display assembly (see
Display assembly
on page
54
)
f.
Fan (see
Fan
on page
62
)
g.
System board (see
System board
on page
63
)
Remove the heat sink:
1.
Turn the system board upside down, with the front toward you.
NOTE:
Steps 2 and 3 apply to computer models equipped with an AMD processor and a
graphics subsystem with discrete memory.
2.
Following the 1 through 7 sequence stamped into the heat sink, loosen the four Phillips
PM2.0×11.0 captive screws and the three Phillips PM2.0×7.5 captive screws
(1)
that secure the
heat sink to the system board.
Component replacement procedures
69