NOTE: The images in this document may dier from your computer
depending on the conguration you ordered.
Before you begin
1 Save and close all open les, and exit all open applications.
2 Shut down your computer by clicking Start → Shut down.
NOTE: If you are using a dierent operating system, see the
Documentation of your operating system for shut-down instructions.
3 Disconnect your computer and all attached devices from their electrical outlets.
4 Disconnect all attached network devices and peripherals, such as keyboard,
mouse, and monitor from your computer.
5 Remove any memory card and optical disc from your computer, if applicable.
Safety instructions
Use the following safety guidelines to protect your computer from potential damage
and ensure your personal safety.
WARNING: Before working inside your computer, read the safety
information that shipped with your computer. For more safety best
practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
WARNING: Disconnect all power sources before opening the computer
cover or panels. After you nish working inside the computer, replace all
covers, panels, and screws before connecting to the electrical outlet.
CAUTION: To avoid damaging the computer, ensure that the work surface is
at and clean.
11
CAUTION: To avoid damaging the components and cards, handle them by
their edges, and avoid touching pins and contacts.
CAUTION: You should only perform troubleshooting and repairs as
authorized or directed by the Dell technical assistance team. Damage due to
servicing that is not authorized by Dell is not covered by your warranty. See
the safety instructions that shipped with the product or at www.dell.com/
regulatory_compliance.
CAUTION: Before touching anything inside your computer, ground yourself
by touching an unpainted metal surface, such as the metal at the back of
the computer. While you work, periodically touch an unpainted metal surface
to dissipate static electricity, which could harm internal components.
CAUTION: When you disconnect a cable, pull on its connector or on its pull
tab, not on the cable itself. Some cables have connectors with locking tabs
or thumb-screws that you must disengage before disconnecting the cable.
When disconnecting cables, keep them evenly aligned to avoid bending any
connector pins. When connecting cables, ensure that the ports and
connectors are correctly oriented and aligned.
CAUTION: Press and eject any installed card from the media-card reader.
Recommended tools
The procedures in this document may require the following tools:
•Philips screwdriver #1
•Flat-head screwdriver
•Plastic scribe
12
Screw list
The following table provides the list of screws that are used for securing dierent
components to the computer.
Table 1. Screw list
ComponentSecured toScrew typeQuantityScrew image
Base coverPalm-rest
assembly
M2.5x69
BatteryPalm-rest
assembly
Hard-drive
assembly
Hard-drive
bracket
Wireless card
bracket
FanPalm-rest
Power and
volumebuttons board
Touch-pad
bracket
TouchpadPalm-rest
I/O boardPalm-rest
Palm-rest
assembly
Hard driveM3x34
Palm-rest
assembly
assembly
Palm-rest
assembly
Palm-rest
assembly
assembly
assembly
M2x3.4
M2x3.52
M2x3.51
M2x3.52
M2x3.51
M2x24
M2x2.54
M2x3.52
Display
assembly
Palm-rest
assembly
M2.5x2.54
13
ComponentSecured toScrew typeQuantityScrew image
Power adapter
port
Palm-rest
assembly
M2x3.51
System boardPalm-rest
assembly
Sensor boardDisplay panelM2.5x2.51
M2x2 Big Head 3
14
After working inside your
computer
CAUTION: Leaving stray or loose screws inside your computer may severely
damage your computer.
1 Replace all screws and ensure that no stray screws remain inside your computer.
2 Connect any external devices, peripherals, or cables you removed before working
on your computer.
3 Replace any media cards, discs, or any other parts that you removed before
working on your computer.
4 Connect your computer and all attached devices to their electrical outlets.
5 Turn on your computer.
15
Removing the base cover
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Procedure
1 Close the display and turn the computer over.
www.dell.com/
16
2 Remove the nine screws (M2.5x6) that secure the base cover to the palm-rest
assembly.
Figure 1. Base cover
1
screws (6)2base cover
3palm-rest assembly
17
3 Using a plastic scribe, release the tabs that secure the base cover to the palm-
rest assembly and remove the base cover o the palm-rest assembly.
Figure 2. Base cover
1
plastic scribe2palm-rest assembly
3base cover
18
Replacing the base cover
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Procedure
1 Align the base cover with the palm-rest assembly and snap it into place.
2 Replace the nine screws (M2.5x6) that secure the base cover to the palm-rest
assembly.
www.dell.com/
19
Removing the battery
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Prerequisites
Remove the base cover.
Procedure
1 Disconnect the battery cable from the system board.
2 Remove the four screws (M2x3.0) that secure the battery to the palm-rest
assembly.
www.dell.com/
20
3 Lift the battery o the palm-rest assembly.
Figure 3. Battery
1system board2battery cable
3screws (4)4palm-rest assembly
5battery
4 Press and hold the power button for ve seconds to ground the system board.
21
Replacing the battery
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Procedure
1 Align the screw holes on the battery with the screw holes on the palm-rest
assembly.
2 Replace the four screws (M2x3.0) that secure the battery to the palm-rest
assembly.
3 Connect the battery cable to the system board.
Post-requisites
Replace the base cover.
www.dell.com/
22
Removing the memory modules
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Prerequisites
1 Remove the base cover.
2 Remove the battery.
www.dell.com/
23
Procedure
1 Lift the Mylar to access the memory module.
Figure 4. Memory module
1
memory module2Mylar
2 Use your ngertips to carefully spread apart the securing-clips on each end of
the memory-module slot until the memory module pops up.
24
3 Remove the memory module from the memory-module slot.
Figure 5. Memory module
1
securing clips (2)2memory module
3memory-module slot
25
Replacing the memory modules
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Procedure
1 Lift the Mylar to access the memory-module slot.
2 Align the notch on the memory module with the tab on the memory-module slot.
www.dell.com/
26
3 Slide the memory module rmly into the slot at an angle and press the memory
module down until it clicks into place.
NOTE: If you do not hear the click, remove the memory module and
reinstall it.
Figure 6. Memory module
1
memory module2memory-module slot
3notch4tab
5Mylar
27
Post-requisites
1 Replace the battery.
2 Replace the base cover.
28
Removing the hard drive
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
CAUTION: Hard drives are fragile. Exercise care when handling the hard
drive.
CAUTION: To avoid data loss, do not remove the hard drive while the
computer is in sleep or on state.
Prerequisites
1 Remove the base cover.
2 Remove the battery.
Procedure
1 Peel o the tape that secures the hard-drive cable to the palm-rest assembly.
2 Using the pull tab, disconnect the hard-drive cable from the system board.
3 Remove the two screws (M2x3.5) that secure the hard-drive assembly to the
palm-rest assembly.
www.dell.com/
29
4 Lift the hard-drive assembly, along with its cable, o the palm-rest assembly.
Figure 7. Hard drive
1tape2hard-drive assembly
3palm-rest assembly4screws (2)
5system board6hard-drive cable
7pull tab
30
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