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Screw list

The following table provides the list of screws that are used for securing different
components to the computer.

Table 1. Screw list

Component

Secured to

Screw type

Quantity

Computer cover

Chassis

#6-32xL6.35

Chassis fan

Chassis

#6-32xL6.35

3.5-inch hard drive Side-chassis

#6-32xL6.35

3.5-inch hard drive Hard-drive bracket #6-32xL3.6

Optical drive

Side-chassis

#6-32xL3.6

Optical drive

Optical-drive
bracket

M2xL2

Wireless card

System board

M2xL3.5

Processor fan

Processor heat sink M6xL10

Power-supply unit

Chassis

#6-32xL6.35

System board

Chassis

#6-32xL6.35

Содержание Inspiron 3668

Страница 1: ...Inspiron 3668 Service Manual Computer Model Inspiron 3668 Regulatory Model D19M Regulatory Type D19M003 ...

Страница 2: ... to hardware or loss of data and tells you how to avoid the problem WARNING A WARNING indicates a potential for property damage personal injury or death Copyright 2017 Dell Inc or its subsidiaries All rights reserved Dell EMC and other trademarks are trademarks of Dell Inc or its subsidiaries Other trademarks may be trademarks of their respective owners 2017 01 Rev A00 ...

Страница 3: ...tructions 11 Recommended tools 13 Screw list 14 Inside view of your computer 15 System board components 16 Removing the computer cover 18 Procedure 18 Replacing the computer cover 19 Procedure 19 Removing the front bezel 20 Prerequisites 20 Procedure 21 Replacing the front bezel 23 Procedure 23 Post requisites 23 3 ...

Страница 4: ...quisites 29 Procedure 29 Replacing the graphics card 33 Procedure 33 Post requisites 33 Removing the 3 5 inch hard drive 34 Prerequisites 34 Procedure 34 Replacing the 3 5 inch hard drive 39 Procedure 39 Post requisites 39 Removing the 2 5 inch hard drives 40 Prerequisites 40 Procedure 40 Replacing the 2 5 inch hard drives 44 Procedure 44 Post requisites 44 4 ...

Страница 5: ...y 51 Prerequisites 51 Procedure 51 Replacing the coin cell battery 54 Procedure 54 Post requisites 54 Removing the wireless card 55 Prerequisites 55 Procedure 55 Replacing the wireless card 58 Procedure 58 Post requisites 59 Removing the antenna modules 60 Prerequisites 60 Procedure 60 Replacing the antenna modules 63 Procedure 63 Post requisites 63 5 ...

Страница 6: ...s fan 68 Prerequisites 68 Procedure 68 Replacing the chassis fan 71 Procedure 71 Post requisites 71 Removing the power supply unit 72 Prerequisites 72 Procedure 72 Replacing the power supply unit 76 Procedure 76 Post requisites 76 Removing the processor fan 77 Prerequisites 77 Procedure 77 Replacing the processor fan 80 Procedure 80 Post requisites 80 6 ...

Страница 7: ...tem board 84 Prerequisites 84 Procedure 84 Replacing the system board 87 Procedure 87 Post requisites 87 BIOS setup program 88 BIOS overview 88 Entering BIOS setup program 88 Clearing Forgotten Passwords 88 Prerequisites 88 Procedure 88 Post requisites 90 Clearing CMOS Settings 91 Prerequisites 91 Procedure 91 Post requisites 93 Flashing the BIOS 94 7 ...

Страница 8: ...Getting help and contacting Dell 95 Self help resources 95 Contacting Dell 95 8 ...

Страница 9: ...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 attached network devices and peripherals such as keyboard mouse and monitor from your computer 5 Remove any media card and optical disc from your computer if applicable 6 After the compute...

Страница 10: ...nsure 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 10 ...

Страница 11: ...airs 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...

Страница 12: ...12 ...

Страница 13: ...Recommended tools The procedures in this document may require the following tools Phillips screwdriver Plastic scribe 13 ...

Страница 14: ...over Chassis 6 32xL6 35 2 Chassis fan Chassis 6 32xL6 35 4 3 5 inch hard drive Side chassis 6 32xL6 35 1 3 5 inch hard drive Hard drive bracket 6 32xL3 6 4 Optical drive Side chassis 6 32xL3 6 1 Optical drive Optical drive bracket M2xL2 3 Wireless card System board M2xL3 5 1 Processor fan Processor heat sink M6xL10 4 Power supply unit Chassis 6 32xL6 35 3 System board Chassis 6 32xL6 35 8 14 ...

Страница 15: ... 1 system board 2 graphics card PCIe x 16 3 processor fan and heat sink assembly 4 memory module 5 optical drive 6 3 5 inch hard drive assembly 7 2 5 inch hard drive assembly 8 side chassis 9 wireless card 10 power supply unit 15 ...

Страница 16: ...ble connector 2 optical drive power cable connector 3 SATA 1 connector 4 SATA 0 connector 5 SATA 2 connector 6 SATA 3 connector 7 wireless card slot 8 hard drive power cable connector 9 power supply unit cable connector 10 coin cell battery 16 ...

Страница 17: ...rd jumper 13 service mode jumper 14 graphics card slot 15 PCIe x1 16 PCIe x1 17 chassis fan cable connector 18 processor socket 19 processor fan cable connector 20 power supply unit cable connector 21 memory module slots 2 17 ...

Страница 18: ...ter 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 www dell com regulatory_compliance Procedure 1 Remove the two screws 6 32xL6 35 that secure the cover to the chassis 2 Release the computer cover by sliding it towards the back of the computer lift the cover off the chassis 18 ...

Страница 19: ...ng inside your computer follow the instructions in After working inside your computer For more safety best practices see the Regulatory Compliance home page at www dell com regulatory_compliance Procedure 1 Align the tabs on the computer cover with the slots on the chassis and slide it towards the front of the computer 2 Replace the two screws 6 32xL6 35 that secure the computer cover to the chass...

Страница 20: ...r 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 www dell com regulatory_compliance Prerequisites Remove the computer cover 20 ...

Страница 21: ...Procedure 1 Grasp and release the front bezel tabs sequentially from the top by moving them outward from the chassis 21 ...

Страница 22: ...2 Rotate and pull the front bezel away from the front of the computer to release the front bezel tabs from the front panel slots 22 ...

Страница 23: ...g inside your computer follow the instructions in After working inside your computer For more safety best practices see the Regulatory Compliance home page at www dell com regulatory_compliance Procedure 1 Align and insert the front bezel tabs into the front panel slots 2 Rotate the front bezel towards the chassis until the front bezel tabs snap into place Post requisites Replace the computer cove...

Страница 24: ...orking 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 www dell com regulatory_compliance Prerequisites 1 Remove the computer cover 2 Remove the front bezel Procedure 1 Place the computer with the side chassis facing up 24 ...

Страница 25: ... CAUTION To prevent damage to the memory module hold the memory module by the edges Do not touch the components on the memory module 3 Using the fingertips spread apart the securing clip at each end of the memory module slot until the memory module pops up 25 ...

Страница 26: ...4 Lift the memory module out of the memory module slot NOTE If the memory module is difficult to remove gently ease the memory module back and forth to remove it from the slot 26 ...

Страница 27: ... 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 www dell com regulatory_compliance Procedure 1 Ensure that the securing clips are extended away from the memory module slot 2 Align the notch on the memory module with the tab on the memory module slot 27 ...

Страница 28: ...mory module down until it snaps into position and the securing clips lock in place 4 Rotate the side chassis towards the computer until it snaps into place 5 Place the computer in an upright position Post requisites 1 Replace the front bezel 2 Replace the computer cover 28 ...

Страница 29: ...rking 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 www dell com regulatory_compliance Prerequisites 1 Remove the computer cover 2 Remove the front bezel Procedure 1 Place the computer with the side chassis facing up 29 ...

Страница 30: ...2 Lift and rotate the side chassis away from the computer 30 ...

Страница 31: ...3 Lift the tab to open the card retention bracket 4 Push the securing tab on the PCIe slot away from the graphics card 31 ...

Страница 32: ...5 Grasp the card by its top corner and lift it out of the slot 32 ...

Страница 33: ...ces see the Regulatory Compliance home page at www dell com regulatory_compliance Procedure 1 Align the graphics card with the slot on the system board 2 Place the card into the slot and press down firmly until the graphics card snaps into place 3 Rotate the card retention bracket towards the chassis until it snaps into place 4 Rotate the side chassis towards the computer until it snaps into place...

Страница 34: ...llow the instructions in After working inside your computer For more safety best practices see the Regulatory Compliance home page at www dell com regulatory_compliance Prerequisites 1 Remove the computer cover 2 Remove the front bezel Procedure 1 Place the computer with the side chassis facing up 2 Remove the screw 6 32xL6 35 that secures the hard drive assembly to the side chassis 3 Disconnect t...

Страница 35: ...4 Disconnect the power cable from the hard drive 35 ...

Страница 36: ...5 Lift and rotate the side chassis away from the computer 36 ...

Страница 37: ...sing the release tabs on the hard drive assembly slide the hard drive assembly out of the slot on the side chassis 7 Remove the four screws 6 32xL3 6 that secure the hard drive bracket to the hard drive 37 ...

Страница 38: ...8 Lift the hard drive off the hard drive bracket 38 ...

Страница 39: ... in the hard drive bracket 2 Align the screw holes on the hard drive with the screw holes on the hard drive bracket 3 Replace the four screws 6 32xL3 6 that secure the hard drive bracket to the hard drive 4 Slide the hard drive assembly into the slot on the side chassis until it snaps into place 5 Connect the data cable and the power cable to the hard drive 6 Rotate the side chassis towards the co...

Страница 40: ...e 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 www dell com regulatory_compliance Prerequisites 1 Remove the computer cover 2 Remove the front bezel Procedure 1 Place the computer with the side chassis facing up 40 ...

Страница 41: ...ft and rotate the side chassis away from the computer 3 Disconnect the power cable from the hard drive 4 Disconnect the data cable from the hard drive 5 Press the release tabs on the hard drive assembly 41 ...

Страница 42: ...6 Slide the hard drive assembly out of the slot on the side chassis 7 Pry the hard drive bracket to release the tabs on the bracket from the slots on the hard drive 42 ...

Страница 43: ...8 Lift the hard drive off the hard drive bracket NOTE Note the orientation of the hard drive so that you can replace it correctly 43 ...

Страница 44: ...mpliance home page at www dell com regulatory_compliance Procedure 1 Place the hard drive into the hard drive bracket and align the tabs on the bracket with the slots on the hard drive 2 Snap the hard drive bracket into the hard drive 3 Slide the hard drive assembly into the slot on the side chassis 4 Connect the data cable and power cable to the hard drive 5 Rotate the side chassis towards the co...

Страница 45: ...rking 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 www dell com regulatory_compliance Prerequisites 1 Remove the computer cover 2 Remove the front bezel Procedure 1 Place the computer with the side chassis facing up 45 ...

Страница 46: ...2 Lift and rotate the side chassis away from the computer 3 Disconnect the power cable from the optical drive 46 ...

Страница 47: ...nnect the data cable from the optical drive 5 Rotate the side chassis towards the computer until it snaps into place 6 Remove the screw 6 32xL3 6 that secures the optical drive assembly to the side chassis 47 ...

Страница 48: ...7 Gently slide the optical drive assembly out of the optical drive bay through the front of the computer 8 Remove the three screws M2xL2 that secure the optical drive bracket to the optical drive 48 ...

Страница 49: ...9 Lift the optical drive bracket off the optical drive 10 Gently pull and disconnect the optical drive bezel from the optical drive 49 ...

Страница 50: ...cket with the screw holes on the optical drive 3 Replace the three screws M2xL2 that secure the optical drive bracket to the optical drive 4 Slide the optical drive assembly into the optical drive bay through the front of the computer 5 Align the screw hole on the optical drive assembly with the screw hole on the chassis 6 Replace the screw 6 32xL3 6 that secures the optical drive assembly to the ...

Страница 51: ...working inside your computer For more safety best practices see the Regulatory Compliance home page at www dell com regulatory_compliance CAUTION Removing the coin cell battery resets the BIOS setup program s settings to default It is recommended that you note the BIOS setup program s settings before removing the coin cell battery Prerequisites 1 Remove the computer cover 2 Remove the front bezel ...

Страница 52: ...2 Lift and rotate the side chassis away from the computer 52 ...

Страница 53: ...3 Using a plastic scribe pry the coin cell battery out of its socket 53 ...

Страница 54: ...orking inside your computer For more safety best practices see the Regulatory Compliance home page at www dell com regulatory_compliance Procedure 1 Insert a new coin cell battery CR2032 into the battery socket with the positive side facing up and snap the battery into place 2 Rotate the side chassis towards the computer until it snaps into place 3 Place the computer in an upright position Post re...

Страница 55: ...rking 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 www dell com regulatory_compliance Prerequisites 1 Remove the computer cover 2 Remove the front bezel Procedure 1 Place the computer with the side chassis facing up 55 ...

Страница 56: ...ide chassis away from the computer 3 Remove the screw M2xL3 5 that secures the wireless card to the system board 4 Lift the wireless card bracket off the wireless card 5 Disconnect the antenna cables from the wireless card 56 ...

Страница 57: ...6 Slide and remove the wireless card from the wireless card slot 57 ...

Страница 58: ...low the instructions in After working inside your computer For more safety best practices see the Regulatory Compliance home page at www dell com regulatory_compliance Procedure 1 Align the notch on the wireless card with the tab on the wireless card slot 2 Slide the wireless card at an angle into the wireless card slot 3 Connect the antenna cables to the wireless card 4 Slide the wireless card br...

Страница 59: ...ecures the wireless card to the system board 6 Rotate the side chassis towards the computer until it snaps into place 7 Place the computer in an upright position Post requisites 1 Replace the front bezel 2 Replace the computer cover 59 ...

Страница 60: ...follow the instructions in After working inside your computer For more safety best practices see the Regulatory Compliance home page at www dell com regulatory_compliance Prerequisites 1 Remove the computer cover 2 Remove the front bezel 3 Follow the procedure from step 1 to step 4 in Removing the wireless card Procedure 1 Note the antenna cable routing and remove the antenna cables from the routi...

Страница 61: ...hrough the cable routing slots on the side chassis 3 Rotate the side chassis towards the computer until it snaps into place 4 Note the antenna cable routing and remove the antenna cables from the routing guides on the side chassis 61 ...

Страница 62: ...5 Using a plastic scribe gently pry the antenna modules off the side chassis 62 ...

Страница 63: ...liance home page at www dell com regulatory_compliance Procedure 1 Adhere the antenna modules to the side chassis 2 Route the antenna cables through the routing guides on the side chassis 3 Lift and rotate the side chassis away from the computer 4 Slide the antenna cables through the cable routing slots on the side chassis 5 Route the antenna cables through the routing guides inside the chassis Po...

Страница 64: ... 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 www dell com regulatory_compliance Prerequisites 1 Remove the computer cover 2 Remove the front bezel Procedure 1 Place the computer with the side chassis facing up 64 ...

Страница 65: ...Lift and rotate the side chassis away from the computer 3 Disconnect the power button cable from the system board 4 Press the tabs on the power button module to release the module from the front panel 65 ...

Страница 66: ...5 Remove the power button module along with its cable through the slot on the front panel 66 ...

Страница 67: ...our computer For more safety best practices see the Regulatory Compliance home page at www dell com regulatory_compliance Procedure 1 Route the power button board cable through the slot on the front panel 2 Align and snap the power button module into the slot on the front panel 3 Connect the power button board cable to the system board 4 Rotate the side chassis towards the computer until it snaps ...

Страница 68: ...king 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 www dell com regulatory_compliance Prerequisites 1 Remove the computer cover 2 Remove the front bezel Procedure 1 Place the computer with the side chassis facing up 68 ...

Страница 69: ...2 Lift and rotate the side chassis away from the computer 3 Disconnect the chassis fan cable from the system board 4 Remove the four screws 6 32xL6 35 that secure the chassis fan to the chassis 69 ...

Страница 70: ...5 Remove the chassis fan from the chassis 70 ...

Страница 71: ...puter For more safety best practices see the Regulatory Compliance home page at www dell com regulatory_compliance Procedure 1 Align the screw holes on the chassis fan with the screw holes on the chassis 2 Replace the four screws 6 32xL6 35 that secure the chassis fan to the chassis 3 Connect the chassis fan cable to the system board 4 Rotate the side chassis towards the computer until it snaps in...

Страница 72: ...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 www dell com regulatory_compliance Prerequisites 1 Remove the computer cover 2 Remove the front bezel Procedure 1 Place the computer with the side chassis facing up 72 ...

Страница 73: ...e chassis away from the computer 3 Press the securing clip and disconnect the power supply unit cable ATX2 from the system board 4 Press the securing clip and disconnect the power supply unit cable ATX1 from the system board 73 ...

Страница 74: ...er supply unit cable from the routing guides on the chassis 6 Remove the three screws 6 32xL6 35 that secure the power supply unit to the chassis 7 Press the clamp and slide the power supply unit towards the front of the chassis to release it from the chassis 74 ...

Страница 75: ...8 Lift the power supply unit along with the cables off the chassis 75 ...

Страница 76: ...re 1 Place the power supply unit on the chassis 2 Slide the power supply unit towards the back of the chassis until it snaps into place 3 Align the screw holes on the power supply unit with the screw holes on the chassis 4 Replace the three screws 6 32xL6 35 that secure the power supply unit to the chassis 5 Route the power supply unit cable through the routing guides inside the chassis 6 Connect ...

Страница 77: ...rking 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 www dell com regulatory_compliance Prerequisites 1 Remove the computer cover 2 Remove the front bezel Procedure 1 Place the computer with the side chassis facing up 77 ...

Страница 78: ...2 Lift and rotate the side chassis away from the computer 3 Disconnect the processor fan cable from the system board 4 Remove the four screws M6xL10 that secure the processor fan to the heat sink 78 ...

Страница 79: ...5 Lift the processor fan off the heat sink 79 ...

Страница 80: ...ter For more safety best practices see the Regulatory Compliance home page at www dell com regulatory_compliance Procedure 1 Align the screw holes on the processor fan with the screw holes on the heat sink 2 Replace the four screws M6xL10 that secure the processor fan to the heat sink 3 Connect the processor fan cable to the system board 4 Rotate the side chassis towards the computer until it snap...

Страница 81: ...mputer For more safety best practices see the Regulatory Compliance home page at www dell com regulatory_compliance CAUTION For maximum cooling of the processor do not touch the heat transfer areas on the heat sink The oils in your skin can reduce the heat transfer capability of the thermal grease Prerequisites 1 Remove the computer cover 2 Remove the front bezel 3 Remove the processor fan Procedu...

Страница 82: ...2 Lift the heat sink assembly off the system board 82 ...

Страница 83: ...ce home page at www dell com regulatory_compliance CAUTION For maximum cooling of the processor do not touch the heat transfer areas on the heat sink The oils in your skin can reduce the heat transfer capability of the thermal grease Procedure 1 Place the heat sink over the processor 2 Align the captive screws on the heat sink assembly with the screw holes on the system board 3 Tighten the captive...

Страница 84: ...ave made to the BIOS using the BIOS setup program You must make the appropriate changes again after you replace the system board NOTE Before disconnecting the cables from the system board note the location of the connectors so that you can reconnect the cables correctly after you replace the system board Prerequisites 1 Remove the computer cover 2 Remove the front bezel 3 Remove the memory modules...

Страница 85: ...e power cable from the system board 5 Disconnect the hard drive power cable and power supply unit cable from the system board 6 Disconnect the optical drive and hard drive data cables from the system board 7 Remove the eight screws 6 32xL6 35 that secure the system board to the chassis 85 ...

Страница 86: ...8 Lift the system board and remove it from the chassis 86 ...

Страница 87: ...nges you have made to the BIOS using the BIOS setup program You must make the appropriate changes again after you replace the system board Procedure 1 Align the system board with the slots on the chassis and place the system board in position 2 Replace the eight screws 6 32xL6 35 that secure the system board to the chassis 3 Route the chassis fan cable optical drive data cable hard drive data cabl...

Страница 88: ...re the F2 prompt this keystroke is lost If you wait too long and the operating system logo appears continue to wait until you see the desktop Then turn off your computer and try again Clearing Forgotten Passwords 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 yo...

Страница 89: ...ide chassis away from the computer 3 Locate the password jumper on the system board NOTE For more information on the location of the jumper see System board components 4 Remove the jumper plug from the password jumper pins 89 ...

Страница 90: ... seconds and then replace the jumper plug in its original location 6 Rotate the side chassis towards the computer until it snaps into place Post requisites 1 Replace the front bezel 2 Replace the computer cover 90 ...

Страница 91: ...ing 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 www dell com regulatory_compliance Prerequisites 1 Remove the computer cover 2 Remove the front bezel Procedure 1 Place the computer with the side chassis facing up 91 ...

Страница 92: ...m the computer 3 Locate the CMOS jumper on the system board NOTE For more information on the location of the jumper see System board components 4 Remove the jumper plug from the password jumper pins PSWD and connect it to the CMOS jumper pins 92 ...

Страница 93: ... seconds and then replace the jumper plug to its original location 6 Rotate the side chassis towards the computer until it snaps into place Post requisites 1 Replace the front bezel 2 Replace the computer cover 93 ...

Страница 94: ...o not have the Service Tag use the auto detect feature or manually browse for your computer model 4 Click Drivers downloads Find it myself 5 Select the operating system installed on your computer 6 Scroll down the page and expand BIOS 7 Click Download to download the latest version of the BIOS for your computer 8 After the download is complete navigate to the folder where you saved the BIOS update...

Страница 95: ...press Enter Online help for operating system www dell com support windows www dell com support linux Troubleshooting information user manuals setup instructions product specifications technical help blogs drivers software updates and so on www dell com support Learn about your operating system setting up and using your computer data backup diagnostics and so on See Me and My Dell at www dell com s...

Страница 96: ...ountry and product and some services may not be available in your country NOTE If you do not have an active internet connection you can find contact information on your purchase invoice packing slip bill or Dell product catalog 96 ...

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