Dell Inspiron Small Desktop User Manual
Inspiron 3647
Owner’s Manual
Computer model: Inspiron 3647
Regulatory model: D09S
Regulatory type: D09S001
Notes, Cautions, and Warnings
NOTE: A NOTE indicates important information that helps you make better
use of your computer.
CAUTION: A CAUTION indicates potential damage to hardware or loss of
data if instructions are not followed.
WARNING: A WARNING indicates a potential for property damage,
personal injury, or death.
____________________
© 2013 Dell Inc.
Trademarks used in this text: Dell™, the DELL logo, and Inspiron™ are trademarks of
Dell Inc.
2013 - 12 Rev. A00
Contents
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Safety Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . 8
Recommended Tools. . . . . . . . . . . . . . . . . . . . . . . . 8
After Working Inside Your Computer . . . . . . . . . . . 9
Technical Overview . . . . . . . . . . . . . . . . . . . . . . . . 10
Inside View of Your Computer. . . . . . . . . . . . . . . . . 10
System-Board Components . . . . . . . . . . . . . . . . . . 11
Removing the Computer Cover . . . . . . . . . . . . . . 12
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Replacing the Computer Cover . . . . . . . . . . . . . . 13
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Removing the Fan Shroud . . . . . . . . . . . . . . . . . . . 14
Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Replacing the Fan Shroud . . . . . . . . . . . . . . . . . . . 15
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Removing the Memory Module(s). . . . . . . . . . . . . 16
Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Replacing the Memory Module(s). . . . . . . . . . . . . 17
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Removing the Graphics Card . . . . . . . . . . . . . . . . 19
Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Contents | 3
Replacing the Graphics Card . . . . . . . . . . . . . . . . 20
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Removing the Wireless Mini-card. . . . . . . . . . . . . 21
Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Replacing the Wireless Mini-Card . . . . . . . . . . . . 22
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Removing the Front Bezel . . . . . . . . . . . . . . . . . . . 23
Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Replacing the Front Bezel . . . . . . . . . . . . . . . . . . . 25
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Removing the Drive Cage . . . . . . . . . . . . . . . . . . . 26
Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Replacing the Drive Cage . . . . . . . . . . . . . . . . . . . 28
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Removing the Optical Drive . . . . . . . . . . . . . . . . . 29
Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Replacing the Optical Drive . . . . . . . . . . . . . . . . . 30
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Removing the Primary Hard-Drive . . . . . . . . . . . . 31
Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4 | Contents
Replacing the Primary Hard-Drive . . . . . . . . . . . . 32
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Removing the Front I/O Panel . . . . . . . . . . . . . . . 33
Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Replacing the Front I/O Panel. . . . . . . . . . . . . . . . 35
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Removing the Power-Button Module . . . . . . . . . 36
Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Replacing the Power-Button Module. . . . . . . . . . 38
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Removing the Processor Fan and
Heat-Sink Assembly . . . . . . . . . . . . . . . . . . . . . . . . 39
Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Replacing the Processor Fan and
Heat-sink Assembly . . . . . . . . . . . . . . . . . . . . . . . 40
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Removing the Processor . . . . . . . . . . . . . . . . . . . . 41
Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Replacing the Processor . . . . . . . . . . . . . . . . . . . . 42
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Contents | 5
Removing the Coin-Cell Battery. . . . . . . . . . . . . 44
Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Replacing the Coin-Cell Battery . . . . . . . . . . . . . . 45
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Removing the System Board . . . . . . . . . . . . . . . . . 46
Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Replacing the System Board . . . . . . . . . . . . . . . . . 48
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Entering the Service Tag in the BIOS. . . . . . . . . . . . . 48
Removing the Power-Supply Unit . . . . . . . . . . . . 49
Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Replacing the Power-Supply Unit. . . . . . . . . . . . . 51
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Flashing the BIOS . . . . . . . . . . . . . . . . . . . . . . . . . . 52
6 | Contents
Before You Begin
CAUTION: To avoid losing data, save and close all open files and exit all
open programs before you turn off your computer.
1 Save and close all open files and exit all open programs.
2 Shutdown your computer.
• Windows 8 — Move your mouse pointer to the upper-right or lower-right
corner of the screen to open the Charms sidebar, and then click Settings→
Power→ Shut
• Windows 7 — Click Start → Shut down .
NOTE: If you are using a different 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 telephone cables, network cables, and attached devices
from your computer.
5 After the computer is unplugged, press and hold the power button for 5 seconds to
ground the system board.
down.
Before You Begin | 7
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 dell.com/regulatory_compliance.
WARNING: Disconnect all power sources before opening the computer cover or
panels. After you finish working inside the computer, replace all covers, panels,
and screws before connecting to the power source.
CAUTION: To avoid damaging the computer, make sure that the work surface is
flat and clean.
CAUTION: To avoid damaging the components and cards, handle them by their
edges and avoid touching pins and contacts.
CAUTION: Only a certified service technician is authorized to remove the
computer cover and access any of the components inside the computer. See the
safety instructions for complete information about safety precautions, working
inside your computer, and protecting against electrostatic discharge.
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, make sure that the connectors and
ports are correctly oriented and aligned.
CAUTION: To disconnect a network cable, first unplug the cable from your
computer and then unplug the cable from the network device.
CAUTION: Press and eject any installed card from the media-card reader.
Recommended Tools
The procedures in this document may require the following tools:
• Phillips screwdriver
• Plastic scribe
8 | Before You Begin
After Working Inside Your Computer
CAUTION: Leaving stray or loose screws inside your computer may severely
damage your computer.
1 Replace all screws and make sure that no stray screws remain inside your
computer.
2 Place the computer in an upright position.
3 Connect any external devices, cables, cards, and any other part(s) you removed
before working on your computer.
4 Connect your computer and all attached devices to their electrical outlets.
After Working Inside Your Computer | 9
Technical Overview
2
3
1
7
8
6
5
4
WARNING: Before working inside your computer, read the safety information
that shipped with your computer and follow the steps in "Before You Begin" on
page 7. After working inside your computer, follow the instructions in "After
Working Inside Your Computer" on page 9. For additional safety best practices
information, see the Regulatory Compliance Homepage at
dell.com/regulatory_compliance.
Inside View of Your Computer
1 optical drive 2 fan shroud
3 PCI-Express x16 card 4 processor fan and heat-sink assembly
5 power supply 6 hard drive
7 front bezel 8 drive cage
10 | Technical Overview
System-Board Components
1 23
5
6
12
8
14
4
13
16
18
17
11 10
97
15
1 power button connector (LEDH1) 2 PCI-Express x16 card slot (SLOT2)
3 front-panel audio connector (AUDF1) 4 PCI-Express x1 card slot (SLOT1)
5 Mini-Card slot (MINI1) 6 power connector (ATX2)
7 processor socket 8 processor fan connector (FNCPU1)
9 memory-module connector (DIMM1) 10 memory-module connector (DIMM2)
11 front panel USB connector (USBF1) 12 main power connector (ATX1)
13 front panel USB connector (USBF2) 14 battery socket (BT1)
15 CMOS clear jumper (CMCLR1) 16 Password clear jumper (PWCLR1)
17 SATA connector (SATA 0) 18 SATA connector (SATA 1)
Technical Overview | 11
Removing the Computer Cover
1
2
WARNING: Before working inside your computer, read the safety information
that shipped with your computer and follow the steps in "Before You Begin" on
page 7. After working inside your computer, follow the instructions in "After
Working Inside Your Computer" on page 9. For additional safety best practices
information, see the Regulatory Compliance Homepage at
dell.com/regulatory_compliance.
Procedure
1 Place the computer on its side with the computer cover facing up.
2 Using a screwdriver, remove the screws that secure the computer cover to
the chassis.
3 Release the computer cover by sliding it away from the front of the computer.
4 Lift the cover away from the computer and set it aside.
1 computer cover 2 screw
12 | Removing the Computer Cover
Replacing the Computer Cover
WARNING: Before working inside your computer, read the safety information
that shipped with your computer and follow the steps in "Before You Begin" on
page 7. After working inside your computer, follow the instructions in "After
Working Inside Your Computer" on page 9. For additional safety best practices
information, see the Regulatory Compliance Homepage at
dell.com/regulatory_compliance.
Procedure
1 Connect all the cables and fold the cables out of the way.
2 Ensure that no tools or extra parts are left inside the computer.
3 Align the tabs at the bottom of the computer cover with the slots located along the
edge of the chassis.
4 Press the computer cover down and slide it towards the front of the computer.
5 Replace the screws that secure the computer cover to the chassis.
6 Place the computer in an upright position.
Postrequisites
Follow the instructions in "After Working Inside Your Computer" on page 9.
Replacing the Computer Cover | 13
Removing the Fan Shroud
1
2
WARNING: Before working inside your computer, read the safety information
that shipped with your computer and follow the steps in "Before You Begin" on
page 7. After working inside your computer, follow the instructions in "After
Working Inside Your Computer" on page 9. For additional safety best practices
information, see the Regulatory Compliance Homepage at
dell.com/regulatory_compliance.
Prerequisites
Remove the computer cover. See "Removing the Computer Cover" on page 12.
Procedure
1 Press in on the fan shroud and lift it to release the tabs that secure the fan shroud to
the processor fan and heat-sink assembly.
2 Lift the fan shroud and set it aside.
1 processor fan and heat-sink assembly 2 fan shroud
14 | Removing the Fan Shroud
Replacing the Fan Shroud
WARNING: Before working inside your computer, read the safety information
that shipped with your computer and follow the steps in "Before You Begin" on
page 7. After working inside your computer, follow the instructions in "After
Working Inside Your Computer" on page 9. For additional safety best practices
information, see the Regulatory Compliance Homepage at
dell.com/regulatory_compliance.
Procedure
1 Place the fan shroud over the processor fan and heat-sink assembly.
2 Gently press the fan shroud until the tabs on the fan shroud snap into place.
Postrequisites
1 Replace the computer cover. See "Replacing the Computer Cover" on page 13.
2 Follow the instructions in "After Working Inside Your Computer" on page 9.
Replacing the Fan Shroud | 15
Removing the Memory Module(s)
2
3
1
WARNING: Before working inside your computer, read the safety information
that shipped with your computer and follow the steps in "Before You Begin" on
page 7. After working inside your computer, follow the instructions in
"After Working Inside Your Computer" on page 9. For more safety best practices,
see the Regulatory Compliance home page at dell.com/regulatory_compliance.
Prerequisites
1 Remove the computer cover. See "Removing the Computer Cover" on page 12.
2 Remove the fan shroud. See "Removing the Fan Shroud" on page 14.
Procedure
1 Locate the memory-module connector on the system board. See "System-Board
Components" on page 11.
2 Press out the securing clip at each end of the memory-module connector.
3 Grasp the memory module and pull it upward.
NOTE: If the memory module is difficult to remove, hold and gently pull it
upward from one end and then on the other end until the memory module is
disengaged from the connector.
1 securing clips (2) 2 memory module
3 memory-module connector
16 | Removing the Memory Module(s)
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