Dell Inspiron 14R SE 7420 Owner's Manual
Dell Inspiron 14R SE 7420 Manual
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Dell Inspiron 14R SE 7420 manual content summary:
- Dell Inspiron 14R SE 7420 | Owner's Manual - Page 1
Dell Inspiron 14R Owner's Manual Computer model: Inspiron 5420/7420 Regulatory model: P33G Regulatory type: P33G001 - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 2
A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed. WARNING: A WARNING indicates a potential for property permission of Dell Inc. is strictly forbidden. Trademarks used in this text: Dell™, the DELL logo, and Inspiron™ are trademarks of Dell Inc.; - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 3
and Connected Devices . . . 8 Safety Instructions 8 Recommended Tools 9 2 After Working Inside Your Computer 10 3 Removing the Switch 12 Procedure 12 4 Replacing the Switch 14 Procedure 14 5 Removing the Battery 16 Procedure 16 6 Replacing the Battery 18 Procedure 18 7 Removing the - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 4
11 Removing the Memory Module(s 30 Prerequisites 30 Procedure 30 12 Replacing the Memory Module(s 32 Procedure 32 Postrequisites 33 13 Removing the Hard Drive 34 Prerequisites 34 Procedure 35 14 Replacing the Hard Drive 38 Procedure 38 Postrequisites 38 15 Removing the Optical Drive 40 - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 5
54 22 Replacing the Power-Adapter Port 56 Procedure 56 Postrequisites 56 23 Removing the Coin-Cell Battery 58 Prerequisites 58 Procedure 59 24 Replacing the Coin-Cell Battery 60 Procedure 60 Postrequisites 60 25 Removing the Fan 62 Prerequisites 62 Procedure 62 26 Replacing the - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 6
31 Removing the Display Bezel 76 Prerequisites 76 Procedure 76 32 Replacing the Display Bezel 78 Procedure 78 Postrequisites 78 33 Removing the Display Panel 80 Prerequisites 80 Procedure 80 34 Replacing the Display Panel 82 Procedure 82 Postrequisites 82 35 Removing the Display Hinges - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 7
41 Removing the System Board 98 Prerequisites 98 Procedure 99 42 Replacing the System Board 102 Procedure 102 Postrequisites 102 Entering the Service Tag in the BIOS 103 43 Removing the Processor Heat-Sink 104 Prerequisites 104 Procedure 105 44 Replacing the Processor Heat-Sink 106 - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 8
8 | Contents - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 9
best practices information, see the Regulatory Compliance Homepage at dell.com/ regulatory_compliance. WARNING: Disconnect all power sources before service technician is authorized to remove the computer cover and access any of the components inside the computer. See the safety instructions - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 10
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 - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 11
2 After Working Inside Your Computer After you complete replacement procedures, ensure the following: • Replace all screws and ensure that no stray screws remain inside your computer • Connect any external devices, cables, cards, and any other part(s) you removed before working on your computer • - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 12
12 | After Working Inside Your Computer - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 13
computer and follow the steps in "Before You Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Slide the switch release latch to the side. The switch pops up. 2 Lift the switch off the computer - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 14
14 | Removing the Switch - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 15
additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Align the tabs at the bottom of slots 2 tabs 4 display cover 2 Follow the instructions in "After Working Inside Your Computer" on page 11. Replacing the Switch | 15 - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 16
16 | Replacing the Switch - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 17
Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Close the display and turn the computer over. 2 Slide the battery release latches to the unlock position. 3 Lift the battery out of the battery bay. 2 1 1 battery release latches (2) 2 battery Removing the Battery | 17 - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 18
18 | Removing the Battery - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 19
practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Align the tabs on the battery with the slots on the battery bay and snap the battery until it clicks into place. 2 Follow the instructions in "After Working Inside Your Computer" on page - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 20
20 | Replacing the Battery - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 21
with your computer and follow the steps in "Before You Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the Battery" on page 17. Removing the Keyboard | 21 - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 22
Procedure CAUTION: The keycaps on the keyboard are fragile, easily dislodged, and time-consuming to replace. Be careful when removing and handling the keyboard. 1 Turn the computer over and open the display as far as possible. 2 Using a plastic scribe, release the keyboard from the tabs on the palm - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 23
3 Carefully turn the keyboard over and place it on the palm rest. 4 Lift the connector latches and pull the pull-tabs to disconnect the keyboard cable and keyboard-backlight cable from the connectors on the system board. 5 Lift the keyboard away from the computer. 12 3 4 1 keyboard cable 3 - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 24
24 | Removing the Keyboard - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 25
best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Slide the keyboard cable computer over. Postrequisites 1 Replace the battery. See "Replacing the Battery" on page 19. 2 Follow the instructions in "After Working Inside Your Computer" - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 26
26 | Replacing the Keyboard - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 27
Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the Battery" on page 17. Procedure 1 Loosen the captive screw that secures the base cover to the computer - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 28
28 | Removing the Base Cover - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 29
safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Slide the tabs on the computer base. Postrequisites 1 Replace the battery. See "Replacing the Battery" on page 19. 2 Follow the instructions in "After Working Inside Your Computer - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 30
30 | Replacing the Base Cover - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 31
You Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 17. 2 Remove the base cover. See "Removing the Base Cover" on page 27. Procedure - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 32
32 | Removing the Memory Module(s) - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 33
follow the steps in "Before You Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure CAUTION: If you need to install memory modules in two connectors, install a memory module in the connector labeled - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 34
Postrequisites 1 Replace the base cover. See "Replacing the Base Cover" on page 29. 2 Replace the battery. See "Replacing the Battery" on page 19. 3 Follow the instructions in "After Working Inside Your Computer" on page 11. 4 Turn on the computer. As the computer boots, it detects the memory module - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 35
safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. CAUTION: To avoid data loss, do not Exercise care when handling the hard drive. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 17. 2 Remove the base cover. See " - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 36
the hard-drive assembly to the computer base. 3 Make a note of the hard-drive cable routing and remove the cable from the routing guides. 4 Lift the hard-drive assembly along with its cable away from the computer base. 2 3 1 1 hard-drive cable connector 2 screws (4) 3 hard-drive assembly 36 - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 37
5 Pull the interposer to disconnect the hard-drive cable from the hard-drive. 1 2 1 hard-drive assembly 2 interposer 6 Remove the screws that secure the hard-drive bracket to the hard drive. 7 Slide the hard-drive off the hard-drive bracket. 1 2 3 1 screws (4) 3 hard drive 2 hard-drive bracket - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 38
38 | Removing the Hard Drive - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 39
at dell.com/regulatory_compliance guides on the computer base. 8 Connect the hard-drive cable to the system-board connector. Postrequisites 1 Replace the base cover. See "Replacing the Base Cover" on page 29. 2 Replace the battery. See "Replacing the Battery" on page 19. 3 Follow the instructions - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 40
40 | Replacing the Hard Drive - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 41
You Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 17. 2 Remove the base cover. See "Removing the Base Cover" on page 27. Procedure - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 42
3 Carefully pry the optical-drive bezel and remove it from the optical-drive assembly. 4 Remove the screws that secure the optical-drive bracket to the optical drive. 5 Remove the optical-drive bracket. 3 4 2 1 1 screws (2) 3 optical drive 2 optical-drive bracket 4 optical-drive bezel 42 | - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 43
safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Align the screw holes on the " on page 29. 2 Replace the battery. See "Replacing the Battery" on page 19. 3 Follow the instructions in "After Working Inside Your Computer" - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 44
44 | Replacing the Optical Drive - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 45
You Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 17. 2 Remove the base cover. See "Removing the Base Cover" on page 27. 3 Remove - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 46
3 Turn the computer over and open the display as far as possible. 4 Lift the connector latches and pull the pull-tabs to disconnect the power-button board cable, touchpad cable, and hot-key board cable from the connectors on the system board. 5 Pull the pull-tab to disconnect the display cable from - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 47
6 Make a note of the display cable routing and remove the cable from the routing guides on the palm rest. 7 Remove the screws that secure the palm rest to the computer base. CAUTION: Carefully separate the palm rest from the display - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 48
48 | Removing the Palm Rest - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 49
see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Slide the 4 Route the display cable through the routing guides on the palm rest. 5 Connect the 29. 3 Replace the battery. See "Replacing the Battery" on page 19. 4 Follow the instructions in "After Working Inside - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 50
50 | Replacing the Palm Rest - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 51
safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. If you ordered a wireless Mini-Card . See "Removing the Base Cover" on page 27. 2 Remove the battery. See "Removing the Battery" on page 17. 3 Remove the keyboard. See "Removing the Keyboard" - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 52
3 Lift the Mini-Card out of the system-board connector. 1 2 1 system-board connector 2 Mini-Card CAUTION: When the Mini-Card is not in the computer, store it in protective antistatic packaging. For more information, see "Protecting Against Electrostatic Discharge" in the safety information that - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 53
Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. NOTE: Dell does not guarantee compatibility or provide support for Mini-Cards from sources other than Dell. Your computer has one half Mini-Card slot which - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 54
the keyboard. See "Replacing the Keyboard" on page 25. 3 Replace the base cover. See "Replacing the Base Cover" on page 29. 4 Replace the battery. See "Replacing the Battery" on page 19. 5 Follow the instructions in "After Working Inside Your Computer" on page 11. 54 | Replacing the Mini-Card - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 55
You Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 17. 2 Remove the base cover. See "Removing the Base Cover" on page 27. 3 Remove - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 56
56 | Removing the Power-Adapter Port - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 57
safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Align the screw hole on the Cover" on page 29. 4 Replace the battery. See "Replacing the Battery" on page 19. 5 Follow the instructions in "After Working Inside Your Computer" on - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 58
58 | Replacing the Power-Adapter Port - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 59
Compliance Homepage at dell.com/regulatory_compliance. WARNING: The battery may explode if installed incorrectly. Replace the battery only with the same or equivalent type. Discard used batteries according to the manufacturer's instructions. CAUTION: Removing the coin-cell battery resets the BIOS - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 60
Procedure 1 Turn the system board over. 2 Using a plastic scribe, gently pry the coin-cell battery out of the battery socket on the system board. 1 2 3 1 plastic scribe 3 battery socket 2 coin-cell battery 60 | Removing the Coin-Cell Battery - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 61
see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. WARNING: The battery may explode if installed incorrectly. Replace the battery only with the same or equivalent type. Discard used batteries according to the manufacturer's instructions. Procedure With the positive-side facing - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 62
62 | Replacing the Coin-Cell Battery - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 63
You Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 17. 2 Remove the base cover. See "Removing the Base Cover" on page 27. 3 Remove - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 64
64 | Removing the Fan - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 65
safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Place the fan in the slot Cover" on page 29. 4 Replace the battery. See "Replacing the Battery" on page 19. 5 Follow the instructions in "After Working Inside Your Computer" on - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 66
66 | Replacing the Fan - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 67
see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 17. 2 Make a note of the speakers cable routing and remove it from the routing guides on the computer base. 3 Lift the speakers along with its cable away - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 68
68 | Removing the Speakers - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 69
see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Use the Route the speakers cable through the routing guides on the computer base. 3 Connect the 29. 4 Replace the battery. See "Replacing the Battery" on page 19. 5 Follow the instructions in "After Working Inside - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 70
70 | Replacing the Speakers - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 71
You Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 17. 2 Remove the base cover. See "Removing the Base Cover" on page 27. 3 Remove - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 72
3 Turn the computer over and open the display as far as possible. 4 Disconnect the antenna cables from the connectors on the Mini-Card. 1 2 1 antenna cables (2) 2 Mini-Card 72 | Removing the Display Assembly - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 73
5 Remove the screws that secure the display assembly to the computer base. 6 Lift the display assembly off the computer base. 1 2 1 display assembly 2 screws (4) Removing the Display Assembly | 73 - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 74
74 | Removing the Display Assembly - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 75
best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Place the display assembly in Base Cover" on page 29. 8 Replace the battery. See "Replacing the Battery" on page 19. 9 Follow the instructions in "After Working Inside Your Computer" on - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 76
76 | Replacing the Display Assembly - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 77
You Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 17. 2 Remove the base cover. See "Removing the Base Cover" on page 27. 3 Remove - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 78
78 | Removing the Display Bezel - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 79
practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure Align the display bezel with Base Cover" on page 29. 5 Replace the battery. See "Replacing the Battery" on page 19. 6 Follow the instructions in "After Working Inside Your Computer" on page - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 80
80 | Replacing the Display Bezel - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 81
You Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 17. 2 Remove the base cover. See "Removing the Base Cover" on page 27. 3 Remove - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 82
2 Carefully lift the display panel and turn it over. 3 Peel and lift the tape that secures the display cable to the display-board connector and then disconnect the display cable. 3 1 2 1 display cable 3 tape 2 display-board connector 4 Lift the display panel away from the display cover. 82 | - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 83
best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Connect the display cable to Cover" on page 29. 6 Replace the battery. See "Replacing the Battery" on page 19. 7 Follow the instructions in "After Working Inside Your Computer" on - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 84
84 | Replacing the Display Panel - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 85
For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the switch. See "Removing the Switch" on page 13. 2 Remove the battery. See "Removing the Battery" on page 17. 3 Remove the base cover. See "Removing the - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 86
3 Turn the display assembly over. 4 Remove the screws that secure the display hinges to the display cover. 5 Lift the display hinges off the display cover. 1 2 3 1 display panel 3 display hinges (2) 2 screws (10) 86 | Removing the Display Hinges - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 87
best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Align the screw holes on the Replace the battery. See "Replacing the Battery" on page 19. 7 Replace the switch. See "Replacing the Switch" on page 15. 8 Follow the instructions in "After - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 88
88 | Replacing the Display Hinges - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 89
You Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 17. 2 Remove the base cover. See "Removing the Base Cover" on page 27. 3 Remove - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 90
2 Turn the camera module over. 3 Peel and lift the tape that secures the camera cable to the camera module. 1 1 tape 2 2 camera cable 90 | Removing the Camera Module - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 91
4 Disconnect the camera cable from the connector on the camera module. 2 1 1 camera cable connector 3 camera cable 3 2 camera module Removing the Camera Module | 91 - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 92
92 | Removing the Camera Module - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 93
safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Connect the camera cable to Cover" on page 29. 7 Replace the battery. See "Replacing the Battery" on page 19. 8 Follow the instructions in "After Working Inside Your Computer" on - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 94
94 | Replacing the Camera Module - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 95
the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 17. 2 9 Remove the speakers. See "Removing the Speakers" on page 67. 10 Follow the instructions from step 1 to step 3 in "Removing the System Board" on page 99. - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 96
Procedure 1 To loosen the ZIF socket, use a small, flat-blade screwdriver and rotate the ZIFsocket cam screw counterclockwise until it comes to the cam stop. CAUTION: To ensure maximum cooling for the processor, do not touch the heat transfer areas on the processor thermal cooling assembly. The oils - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 97
safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure NOTE: If you install a new assembly. See "Replacing the Processor Heat-Sink" on page 107. 2 Follow the instructions from step 4 to step 7 in "Replacing the System Board" on page 103 - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 98
11 Replace the battery. See "Replacing the Battery" on page 19. 12 Follow the instructions in "After Working Inside Your Computer" on page 11. 98 | Replacing the Processor - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 99
You Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 17. 2 Remove the base cover. See "Removing the Base Cover" on page 27. 3 Remove - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 100
Tag is stored in the system board. You must enter the Service Tag in the BIOS after you replace the system-board assembly. NOTE: Before disconnecting the cables from the system board, note the location of the - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 101
3 Lift the system board at an angle and release the connectors on the system board from the slots on the computer base. 4 Remove the processor. See "Removing the Processor" on page 95. 5 Remove the processor heat-sink. See "Removing the Processor Heat-Sink" on page 105. 6 Remove the screws that - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 102
102 | Removing the System Board - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 103
best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Replace the screws that secure Cover" on page 29. 10 Replace the battery. See "Replacing the Battery" on page 19. 11 Follow the instructions in "After Working Inside Your Computer" on - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 104
Entering the Service Tag in the BIOS 1 Turn on the computer. 2 Press during POST to enter the system setup program. 3 Navigate to the main tab and enter the Service Tag in the Service Tag Setting field. 104 | Replacing the System Board - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 105
see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 17. 2 Remove the Speakers" on page 67. 10 Follow the instructions from step 1 to step 3 in "Removing the System Board" on page 99. Removing the - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 106
Procedure 1 Turn the system-board assembly over. 2 In sequential order (indicated on the processor heat-sink), loosen the captive screws that secure the processor heat-sink to the system board. 3 Lift the processor heat-sink off the system board. 2 1 1 processor heat-sink 2 captive screws (6) - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 107
best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Align the captive screws on the Cover" on page 29. 10 Replace the battery. See "Replacing the Battery" on page 19. 11 Follow the instructions in "After Working Inside Your Computer" on - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 108
108 | Replacing the Processor Heat-Sink - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 109
.dell.com/support/downloads. 3 Locate the BIOS update file for your computer: NOTE: The Service Tag for your computer is located on a label at the bottom of your computer. For more information, see the Quick Start Guide that shipped with your computer. If you have your computer's Service Tag or - Dell Inspiron 14R SE 7420 | Owner's Manual - Page 110
110 | Flashing the BIOS
Dell Inspiron 14R
Owner’s Manual
Computer model: Inspiron 5420/7420
Regulatory model: P33G
Regulatory type: P33G001