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Dell Inspiron 3670 Service Manual Download Page 40

Replacing the processor fan and heat-sink 

assembly

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 

www.dell.com/

regulatory_compliance

.

 

Topics:

•

Procedure

•

Post-requisites

Procedure

1 

Place and align the captive screws on the processor fan and heat-sink assembly with the screw holes on the system board.

NOTE: 

As shown in the image, ensure that the processor-fan cable faces the front of the computer before tightening the 

captive screws.

2 

In sequential order (as indicated on the system board), tighten the four captive screws that secure the processor fan and heat-sink 
assembly to the system board.

3 

Connect the processor-fan cable to the system board (FAN CPU).

23

40

Replacing the processor fan and heat-sink assembly

Summary of Contents for Inspiron 3670

Page 1: ...Inspiron 3670 Service Manual Computer Model Inspiron 3670 Regulatory Model D19M Regulatory Type D19M005 ...

Page 2: ...amage 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 2018 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 2018 04 Rev A00 ...

Page 3: ...e computer cover 13 Procedure 13 6 Removing the front bezel 14 Prerequisites 14 Procedure 14 7 Replacing the front bezel 16 Procedure 16 Post requisites 17 8 Removing the memory module 18 Prerequisites 18 Procedure 18 9 Replacing the memory module 20 Procedure 20 Post requisites 21 10 Removing the solid state drive Intel Optane 22 Prerequisites 22 Procedure 22 11 Replacing the solid state drive In...

Page 4: ...re 31 Post requisites 31 18 Removing the optical drive 32 Prerequisites 32 Procedure 32 19 Replacing the optical drive 34 Procedure 34 Post requisites 35 20 Removing the power supply unit 36 Prerequisites 36 Procedure 36 21 Replacing the power supply unit 37 Procedure 37 Post requisites 37 22 Removing the processor fan and heat sink assembly 38 Prerequisites 38 Procedure 38 23 Replacing the proces...

Page 5: ...8 Post requisites 49 30 Removing the antenna modules 50 Prerequisites 50 Procedure 50 31 Replacing the antenna modules 51 Procedure 51 Post requisites 51 32 Removing the system board 52 Prerequisites 52 Procedure 52 33 Replacing the system board 56 Procedure 56 Post requisites 59 34 Downloading drivers 60 Downloading the audio driver 60 Downloading the graphics driver 60 Downloading the USB driver...

Page 6: ...rds 70 Prerequisites 70 Procedure 70 Post requisites 71 Clearing CMOS Settings 71 Prerequisites 71 Procedure 71 Post requisites 72 37 Troubleshooting 73 Flashing the BIOS 73 Reinstall Windows using a USB recovery drive 73 Enhanced Pre Boot System Assessment ePSA diagnostics 74 Running the ePSA diagnostics 74 Diagnostics 74 Flea power release 75 Wi Fi power cycle 75 38 Getting help and contacting D...

Page 7: ...l 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 electrical outlet CAUTION To avoid damaging the computer ensure 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 You sh...

Page 8: ...ew image Computer cover Chassis 6 32x6 35 2 Solid state drive Intel Optane memory System board M2x3 5 1 Card retention bracket Chassis 6 32x6 35 1 Wireless card System board M2x3 5 1 Power supply unit Chassis 6 32x6 35 4 3 5 inch hard drive Chassis 6 32x3 6 4 2 5 inch hard drive s NOTE Depending on the configuration ordered there may be up to two 2 5 inch hard drives installed Chassis M3x3 5 2 4 O...

Page 9: ...y 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 2 After working inside your computer 9 ...

Page 10: ...ices see the Regulatory Compliance home page at www dell com regulatory_compliance Topics Inside view of your computer System board components Inside view of your computer Figure 1 Inside view of your computer 1 processor fan and heat sink assembly 2 solid state drive Intel Optane memory 3 graphics card 4 power supply unit 5 wireless card 6 3 5 inch hard drive 7 2 5 inch hard drive 8 system board ...

Page 11: ...ctor SATA 3 7 SATA 0 cable connector SATA 0 8 hard drive power cable connector SATA PWR 9 power supply unit cable connector ATX PWR 10 wireless card slot 11 service mode jumper 12 CMOS clear jumper 13 password clear jumper 14 M 2 PCIe connector 15 graphics card slot 16 PCI Express X1 slot 17 PCI Express X1 slot 18 processor power cable connector ATX CPU 19 processor socket Technical overview 11 ...

Page 12: ...ollow 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 Place the computer on its side 2 Remove the two screws 6 32x6 35 that secure the computer cover to the chassis 3 Slide the computer cover towards the back of the computer and lift the computer cover off the chassis 4 1...

Page 13: ...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 until it snaps into position 2 Replace the two screws 6 32x6 35 that secure the computer cover to the chassis 3 Place the computer...

Page 14: ... your computer For more safety best practices see the Regulatory Compliance home page at www dell com regulatory_compliance Topics Prerequisites Procedure Prerequisites Remove the computer cover Procedure 1 Place the computer in an upright position 2 Pry and release the tabs on the front bezel away from the chassis 3 Rotate and pull the front bezel away from the computer to release the tabs on the...

Page 15: ...Removing the front bezel 15 ...

Page 16: ...ng inside your computer For more safety best practices see the Regulatory Compliance home page at www dell com regulatory_compliance Topics Procedure Post requisites Procedure 1 Align the tabs on the front bezel with the slots on the chassis and then rotate the front bezel towards the chassis until it snaps into place NOTE Ensure that the front bezel slot is aligned correctly with the optical driv...

Page 17: ...Post requisites Replace the computer cover Replacing the front bezel 17 ...

Page 18: ... regulatory_compliance Topics Prerequisites Procedure Prerequisites Remove the computer cover Procedure NOTE Depending on the configuration ordered your computer may have up to two memory modules installed on the system board 1 Using the fingertips spread apart the securing clip at each end of the memory module slot until the memory module pops up 2 Lift the memory module out of the memory module ...

Page 19: ...Removing the memory module 19 ...

Page 20: ...mputer For more safety best practices see the Regulatory Compliance home page at www dell com regulatory_compliance Topics Procedure Post requisites Procedure 1 Align the notch on the memory module with the tab on the memory module slot NOTE Ensure that the securing clips are extended away from the memory module slot 2 Insert the memory module into the memory module slot and then press the memory ...

Page 21: ...Post requisites Replace the computer cover Replacing the memory module 21 ...

Page 22: ...safety best practices see the Regulatory Compliance home page at www dell com regulatory_compliance Topics Prerequisites Procedure Prerequisites Remove the computer cover Procedure 1 Locate the solid state drive or Intel Optane memory on the system board 2 Remove the screw M2x3 5 that secures the solid state drive or Intel Optane memory to the system board 3 Slide and remove the solid state drive ...

Page 23: ...Removing the solid state drive Intel Optane 23 ...

Page 24: ...e page at www dell com regulatory_compliance CAUTION Solid state drives are fragile Exercise care when handling the solid state drive Topics Procedure Post requisites Procedure 1 Align the notch on the solid state drive or Intel Optane memory with the tab on the M 2 card slot 2 Slide the solid state drive or Intel Optane memory into the M 2 card slot on the system board 3 Replace the screw M2x3 5 ...

Page 25: ...ee the Regulatory Compliance home page at www dell com regulatory_compliance Topics Prerequisites Procedure Prerequisites Remove the computer cover Procedure 1 Remove the screw 6 32x6 35 that secures the card retention bracket to the chassis 2 Rotate the card retention bracket away from the chassis to access the expansion cards 3 Push and hold the securing tab on the graphics card slot 4 Hold firm...

Page 26: ...e system board is pushed away from the graphics card slot 2 Align the notch on the graphics card with the tab on the graphics card slot and then press down firmly until the graphics card snaps into place NOTE The securing tab will move to a closed position when the graphics card is replaced correctly Remove the graphics card and repeat the procedure if the securing tab does not close 3 Rotate the ...

Page 27: ...pliance 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 Topics Prerequisites Procedure Prerequisites Remove the computer cover Procedure 1 Press on the edge of the coin cell battery to release it from the ...

Page 28: ... 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 Topics Procedure Post requisites Procedure Insert the coin cell battery into the battery socket with the positive side facing up and snap the battery into place Post requisites Replace the computer cover 15 28 Replacing...

Page 29: ...ices see the Regulatory Compliance home page at www dell com regulatory_compliance Topics Prerequisites Procedure Prerequisites Remove the computer cover Procedure 1 Locate the wireless card on the system board 2 Remove the screw M2x3 5 that secures the wireless card to the system board 3 Lift the wireless card bracket off the wireless card 4 Disconnect the antenna cables from the wireless card 5 ...

Page 30: ...30 Removing the wireless card ...

Page 31: ...www dell com regulatory_compliance Topics Procedure Post requisites Procedure 1 Connect the antenna cables to the wireless card 2 Slide the wireless card bracket on the wireless card and align the screw hole on the bracket with the screw hole on the wireless card 3 Align the notch on the wireless card with the tab on the wireless card slot then slide the wireless card at an angle into the wireless...

Page 32: ... dell com regulatory_compliance Topics Prerequisites Procedure Prerequisites Remove the computer cover Procedure 1 Disconnect the optical drive data cable and power cable from the optical drive assembly 2 Remove the two screws M2x2 that secure the optical drive assembly to the chassis 3 Slide and remove the optical drive assembly from its slot on the chassis 4 Insert a pin into the optical drive e...

Page 33: ...6 Using a plastic scribe push the tabs to release the optical drive bezel from the optical drive 7 Gently pull and disconnect the optical drive bezel from the optical drive Removing the optical drive 33 ...

Page 34: ...ulatory Compliance home page at www dell com regulatory_compliance Topics Procedure Post requisites Procedure 1 Align and replace the optical drive bezel to the optical drive tray 2 Slide the optical drive assembly into its slot on the chassis and align the screw holes on the optical drive assembly to the screw holes on the chassis 3 Replace the screws M2x2 that secures the optical drive assembly ...

Page 35: ...Post requisites Replace the computer cover Replacing the optical drive 35 ...

Page 36: ...regulatory_compliance Topics Prerequisites Procedure Prerequisites Remove the computer cover Procedure 1 Press the securing clip and disconnect the power supply unit cable P1 from the system board ATX SYS 2 Press the securing clip and disconnect the power supply unit cable P2 from the processor power cable ATX CPU 3 Remove the power supply unit cable P1 from the routing guide on the chassis 4 Remo...

Page 37: ...atory_compliance Topics Procedure Post requisites Procedure 1 Place the power supply unit on the chassis aligning the screw holes on the power supply unit to the screw holes on the chassis 2 Replace the four screws 6 32x6 35 that secure the power supply unit to the chassis 3 Route the power supply unit cable ATX SYS through the routing guide on the chassis 4 Connect the power supply unit cable P1 ...

Page 38: ...nce WARNING The heat sink may become hot during normal operation Allow sufficient time for the heat sink to cool before you touch it 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 Topics Prerequisites Procedure Prerequisites Remove the computer cover Procedure 1 P...

Page 39: ...rder as indicated on the system board loosen the four captive screws that secure the processor fan and heat sink assembly to the system board 5 Lift the processor fan and heat sink assembly along with its cable off the system board Removing the processor fan and heat sink assembly 39 ...

Page 40: ...m regulatory_compliance Topics Procedure Post requisites Procedure 1 Place and align the captive screws on the processor fan and heat sink assembly with the screw holes on the system board NOTE As shown in the image ensure that the processor fan cable faces the front of the computer before tightening the captive screws 2 In sequential order as indicated on the system board tighten the four captive...

Page 41: ...ss down on the fan shroud and snap it into place NOTE Ensure that the Rear Facing etching on the fan shroud faces the back of the computer before snapping the fan shroud into place Post requisites Replace the computer cover Replacing the processor fan and heat sink assembly 41 ...

Page 42: ...y best practices see the Regulatory Compliance home page at www dell com regulatory_compliance Topics Prerequisites Procedure Prerequisites 1 Remove the computer cover 2 Remove the processor fan and heat sink assembly Procedure 1 Press the release lever down and then push it away from the processor to release it from the securing bracket 2 Pull the release lever up completely to unlock the process...

Page 43: ...tended in the open position Then align the notches on the processor with the tabs on the processor socket and place the processor in the processor socket CAUTION The pin 1 corner of the processor is marked with a triangle that must align with the triangle marking on the pin 1 corner on the processor socket to ensure that the processor is properly seated When the processor is properly seated all fo...

Page 44: ...king inside your computer For more safety best practices see the Regulatory Compliance home page at www dell com regulatory_compliance Topics Prerequisites Procedure Prerequisites 1 Remove the computer cover 2 Remove the front bezel Procedure 1 Disconnect the hard drive data cable and power cable from the hard drive 2 Remove the four screws 6 32x3 6 that secure the hard drive to the chassis 3 Lift...

Page 45: ... best practices see the Regulatory Compliance home page at www dell com regulatory_compliance Topics Procedure Post requisites Procedure 1 Place the hard drive on the chassis and align the screw holes on the hard drive with the screw holes on the chassis 2 Replace the four screws 6 32x3 6 that secure the hard drive to the chassis 3 Connect the hard drive data cable and power cable to the hard driv...

Page 46: ...move the computer cover 2 Remove the front bezel Procedure NOTE Depending on the configuration ordered there may be up to two 2 5 inch hard drives installed in your computer The following procedure enables you to remove the 2 5 inch hard drive s in either or both locations 1 Disconnect the hard drive data cable and power cable from the hard drive 2 Remove the two screws M3x3 5 that secure the hard...

Page 47: ...Removing the 2 5 inch hard drive 47 ...

Page 48: ...es Procedure NOTE Depending on the configuration ordered there may be up to two 2 5 inch hard drives installed in your computer The following procedure lists the steps to remove the 2 5 inch hard drive s in either or both locations 1 Align and place the slots on the hard drive with the posts on the chassis then hold the hard drive in place NOTE Ensure that the hard drive is seated correctly with t...

Page 49: ...Post requisites 1 Replace the front bezel 2 Replace the computer cover Replacing the 2 5 inch hard drive 49 ...

Page 50: ...ore safety best practices see the Regulatory Compliance home page at www dell com regulatory_compliance Topics Prerequisites Procedure 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 Using a plastic scribe pry and peel the antenna modules 2 from the locations on the chassis 2 Pull and route th...

Page 51: ...Regulatory Compliance home page at www dell com regulatory_compliance Topics Procedure Post requisites Procedure 1 Using the alignment posts adhere the antenna modules 2 to the chassis NOTE Ensure the antenna modules ANT W and ANT B are replaced in the correct locations on the chassis 2 Slide and route the antenna cables through the antenna cable slot on the chassis Post requisites 1 Follow steps ...

Page 52: ...e front bezel 3 Remove the memory module 4 Remove the solid state drive Intel Optane memory 5 Remove the graphics card 6 Remove the wireless card 7 Remove the processor fan and heat sink assembly 8 Remove the processor Procedure NOTE Note the routing of all cables as you remove them so that you can reroute them correctly after you replace the system board For information on system board connectors...

Page 53: ...e chassis 10 Remove the screw 6 32x4 8 standoff that secures the system board to the chassis 11 Remove the screw 6 32x6 35 that secures the front I O bracket to the chassis 12 Remove the front I O bracket from the front I O slot on the chassis Removing the system board 53 ...

Page 54: ...3 Lift the system board and slide it toward the front I O slot releasing the back I O ports from the back I O bracket 14 Lift the system board and remove it from the chassis 54 Removing the system board ...

Page 55: ...Removing the system board 55 ...

Page 56: ...E Replacing the system board removes any changes you have made to the BIOS using the BIOS setup program You must make the appropriate changes again after you replace the system board Topics Procedure Post requisites Procedure NOTE To ensure that cables are connected to the correct system board connectors see System board components NOTE Depending on the configuration ordered your computer may have...

Page 57: ...32x4 8 standoff that secures the system board to the chassis 5 Slide the front I O bracket into the front I O slot aligning the screw hole on the front I O board to the screw hole on the chassis 6 Replace the screw 6 32x6 35 that secures the front I O bracket to the chassis Replacing the system board 57 ...

Page 58: ...o the system board SATA PWR 10 Connect the hard drive data cable to the system board SATA 3 11 Connect the hard drive cable to the system board SATA 0 12 Connect the hard drive data cable to the system board SATA 1 13 Connect the optical drive data cable to the system board SATA 2 14 Connect the processor power cable to the system board ATX SYS 58 Replacing the system board ...

Page 59: ...rocessor fan and heat sink assembly 3 Replace the wireless card 4 Replace the graphics card 5 Replace the solid state drive Intel Optane memory 6 Replace the memory module 7 Replace the front bezel 8 Replace the computer cover Replacing the system board 59 ...

Page 60: ... User Account Control to make changes on the system 12 The application installs all drivers and updates identified NOTE Not all files can be installed automatically Review the installation summary to identify if manual installation is necessary 13 For manual download and installation click Category 14 Click Audio in the drop down list 15 Click Download to download the audio driver for your compute...

Page 61: ...ter status in Device Manager Before Installation After Installation Downloading the USB driver 1 Turn on your computer 2 Go to www dell com support 3 Enter the Service Tag of your computer and then click Submit NOTE If you do not have the Service Tag use the autodetect feature or manually browse for your computer model 4 Click Drivers downloads 5 Click the Detect Drivers button 6 Review and agree ...

Page 62: ... make changes on the system 12 The application installs all drivers and updates identified NOTE Not all files can be installed automatically Review the installation summary to identify if manual installation is necessary 13 For manual download and installation click Category 14 Click Chipset in the drop down list 15 Click Download to download the appropriate chipset driver for your computer 16 Aft...

Page 63: ...utomatically Review the installation summary to identify if manual installation is necessary 13 For manual download and installation click Category 14 Click Network in the drop down list 15 Click Download to download the network driver for your computer 16 Save the file and after the download is complete navigate to the folder where you saved the network driver file 17 Double click the network dri...

Page 64: ...ices that you can boot from including the diagnostic option The boot menu options are Removable Drive if available STXXXX Drive NOTE XXX denotes the SATA drive number Optical Drive if available SATA Hard Drive if available Diagnostics NOTE Choosing Diagnostics will display the ePSA diagnostics screen The boot sequence screen also displays the option to access the System Setup screen Navigation key...

Page 65: ...ppear and then press F2 immediately NOTE The F2 prompt indicates that the keyboard is initialized This prompt can appear very quickly so you must watch for it and then press F2 If you press F2 before 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 System Setup Option...

Page 66: ...rning messages when you use AC adapters that are not supported by your computer Default Enabled Intel Software Guard Extensions Enable or disable Intel Software Guard Extensions Default Software Controlled Intel Software Guard Extensions allocated memory size Displays the allocated memory size for Intel Software Guard Extensions BIOS Recovery from Hard Drive Enables you to enable or disable BIOS R...

Page 67: ...admin password is set System Password Status Displays whether the system password is set HDD Password Status Displays if the hard drive password is set Admin Password Enables you to set the admin password System Password Enables you to set the system password HDD Password Enables you to set the hard drive password Password Change Enable or disable changes to the System and Hard Disk passwords when...

Page 68: ...es you to load default values for all system setup options Discard Changes Enables you to exit your changes Save Changes Enables you to save your changes Flashing the BIOS You may need to flash update the BIOS when an update is available or when you replace the system board Follow these steps to flash the BIOS 1 Turn on your computer 2 Go to www dell com support 3 Click Product support enter the S...

Page 69: ...ds Clearing CMOS Settings Assigning a system password and setup password You can assign a new System Password only when the status is in Not Set To enter the system setup press F2 immediately after a power on or re boot 1 In the System BIOS or System Setup screen select Security and press Enter The Security screen is displayed 2 Select System Password and create a password in the Enter the new pas...

Page 70: ...e enter the new password when promoted If you delete the System and or Setup password confirm the deletion when promoted 5 Press Esc and a message prompts you to save the changes 6 Press Y to save the changes and exit from System Setup The computer reboot Clearing Forgotten Passwords WARNING Before working inside your computer read the safety information that shipped with your computer and follow ...

Page 71: ...our computer For more safety best practices see the Regulatory Compliance home page at www dell com regulatory_compliance Prerequisites Remove the computer cover Procedure 1 Locate the CMOS jumper CMCL R2 on the system board NOTE For more information on the location of the jumper see System board components 2 Remove the jumper plug from the password jumper pins PSWD and connect it to the CMOS jump...

Page 72: ...Post requisites Replace the computer cover 72 System and setup password ...

Page 73: ...y drive CAUTION This process formats the hard drive and removes all data on your computer Ensure that you back up data on your computer before beginning this task NOTE Before reinstalling Windows ensure your computer has more than 2 GB of memory and more than 32 GB of storage space NOTE This process may take up to an hour to complete and your computer will restart during the recovery process 1 Con...

Page 74: ...he computer 2 As the computer boots press the F12 key as the Dell logo appears 3 On the boot menu screen select the Diagnostics option 4 Click the arrow key at the bottom left corner Diagnostics front page is displayed 5 Press the arrow in the lower right corner to go to the page listing The items detected are listed 6 To run a diagnostic test on a specific device press Esc and click Yes to stop t...

Page 75: ...power button for 15 seconds to drain the flea power 4 Connect the power adapter to your computer 5 Turn on your computer Wi Fi power cycle If your computer is unable to access the internet due to Wi Fi connectivity issues a Wi Fi power cycle procedure may be performed The following procedure provides the instructions on how to conduct a Wi Fi power cycle NOTE Some ISPs Internet Service Providers p...

Page 76: ...related articles Learn and know the following information about your product Product specifications Operating system Setting up and using your product Data backup Troubleshooting and diagnostics Factory and system restore BIOS information See Me and My Dell at www dell com support manuals To locate the Me and My Dell relevant to your product identify your product through one of the following Selec...

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