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Back to Contents Page

  

 

 Processor Heat Sink  

Dell™ Vostro™ A840/A860 Service Manual 

 

  

Removing the Processor Heat Sink 

 

  

Replacing the Processor Heat Sink 

 

 

 

 

 

 

 

Removing the Processor Heat Sink  

 

 

1.

Follow the instructions in 

Before You Begin

.  

 

 

  

2.

Remove the system board (see 

Removing the System Board

).  

 

 

  

3.

Turn the system board over.  
 

 

  

4.

Loosen the four captive screws on the processor heat sink.  
 

 

  

5.

Lift the processor heat sink out of the computer.  
 

  

 

Replacing the Processor Heat Sink  

 

 

1.

Peel the backing off the thermal pad and adhere the pad to the portion of the processor heat sink assembly that covers the processor.  
 

 

  

2.

Slide the processor heat sink under the bracket and align the four captive screws with the screw holes on the system board.  
 

 

  

3.

Tighten the four captive screws.  
 

 

  

4.

Follow the instructions in 

Replacing the System Board

.  

 

Back to Contents Page

 

 

 

 

CAUTION: 

Before working inside your computer, read the safety information that shipped with your computer. For additional safety best 

practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance 

 

NOTICE: 

To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface 

(such as a connector on the back of the computer). 

processor heat sink 

captive screw (4) 

 

NOTE: 

The original thermal pad can be reused if the original processor and processor heat sink are reinstalled together. If either the processor or the 

processor heat sink is replaced, use the thermal pad provided in the kit to ensure that thermal conductivity is achieved.

 

NOTE: 

This procedure assumes that you have already removed the processor heat sink and are ready to replace it.

Summary of Contents for PowerEdge 860

Page 1: ...ll Inc Bluetooth is a registered trademark owned by Bluetooth SIG Inc and is used by Dell under license Microsoft Windows Windows Vista and Windows Vista start button are either trademarks or registered trademarks of Microsoft Corporation in the United States and or other countries Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and ...

Page 2: ... two screws on the module cover 3 Slide the battery into the battery bay until it clicks into place Back to Contents Page CAUTION Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance NOTICE To avoid electrostatic discharge ground y...

Page 3: ...he system board see Replacing the System Board 4 Slide the battery into the battery bay until it clicks in place CAUTION Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance NOTICE To avoid electrostatic discharge ground yourself b...

Page 4: ...Back to Contents Page ...

Page 5: ...ace is flat and clean to prevent the computer cover from being scratched 2 Turn off your computer see Turning Off Your Computer NOTICE To avoid losing data save and close all open files and exit all open programs before you turn off your computer CAUTION Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information ...

Page 6: ...d it c Remove the battery from the battery bay 7 Press the power button to ground the system board Back to Contents Page NOTICE To disconnect a network cable first unplug the cable from your computer and then unplug the cable from the network device NOTICE To avoid damaging the system board you must remove the main battery before you service the computer NOTICE To avoid damage to the computer use ...

Page 7: ...s 6 Remove the BIOS update program CD from the drive and restart the computer Flashing the BIOS From the Hard Drive 1 Ensure that the AC adapter is plugged in the main battery is properly installed and a network cable is attached 2 Turn on the computer 3 Locate the latest BIOS update file for your computer at support dell com 4 Click Download Now to download the file 5 If the Export Compliance Dis...

Page 8: ...omputer base 2 Replace the bluetooth cable connector to the system board 3 Follow the instructions in Replacing the Palm Rest 4 Slide the battery into the battery bay until it clicks in place Back to Contents Page CAUTION Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Hom...

Page 9: ...ector 3 Follow the instructions in Replacing the System Board 4 Slide the main battery into the battery bay until it clicks into place Back to Contents Page CAUTION Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance NOTICE To avo...

Page 10: ... www dell com regulatory_compliance NOTICE To avoid electrostatic discharge ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface such as a connector on the back of the computer NOTICE To prevent intermittent contact between the ZIF socket cam screw and the processor when removing or replacing the processor press to apply slight pressure to the cen...

Page 11: ...rocessor heat sink that covers the processor 4 Follow the instructions in Replacing the Processor Heat Sink 5 Update the BIOS using a flash BIOS update program CD see Flashing the BIOS Back to Contents Page NOTICE Ensure that the cam lock is in the fully open position before seating the processor Seating the processor properly in the ZIF socket does not require force NOTICE A processor that is not...

Page 12: ... captive screws 4 Follow the instructions in Replacing the System Board Back to Contents Page CAUTION Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance NOTICE To avoid electrostatic discharge ground yourself by using a wrist gro...

Page 13: ...ystem board connector 8 Make note of the cable routing and carefully dislodge the WLAN antenna cables and the rest of the cables from their routing guides Pull the cables away so that they are clear of the palm rest CAUTION Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance H...

Page 14: ...ews at the back of the computer 6 Turn the computer over and carefully route the WLAN card antenna cables through their routing guides and connect them to the WLAN card 7 Reconnect the WLAN card if applicable see Replacing the WLAN Card 8 Replace the memory modules see Replacing the Memory Module s 9 Slide the battery into the battery bay until it clicks in place 1 display cable 2 antenna cables 1...

Page 15: ...display bezel over the display panel and gently snap into place 2 Replace and tighten the six screws 3 Replace the display assembly see Replacing the Display Assembly Display Panel NOTICE The display bezel is extremely fragile Be careful when removing it to prevent damaging the bezel 1 rubber bumper 4 2 screw 6 3 display bezel 4 display panel CAUTION Before working inside your computer read the sa...

Page 16: ...he display panel brackets to the display panel Replacing the Display Panel 1 Align the display panel brackets with the display panel NOTE Make a note of the routing of the cables behind the display panel 1 display panel 2 screw 6 3 display inverter 4 display cover 1 display panel bracket 1 left 1 right 2 display bracket screw 8 total 4 on each side CAUTION Before working inside your computer read ...

Page 17: ...n the display board 5 Disconnect the flex cable from the display board Replacing the Display Panel Cable 1 Connect the flex cable to the connector on the inverter board 2 Connect the flex cable to the connector on the back of the display panel and adhere the tape back into position 3 Replace the display panel see Replacing the Display Panel 4 Replace the display bezel see Replacing the Display Bez...

Page 18: ... the inverter board with the tabs on the display cover and snap it into position 2 Connect the cables on either side of the inverter board 3 Replace the display bezel see Replacing the Display Bezel 4 Replace the display assembly see Display Back to Contents Page 1 inverter board 2 connector 2 CAUTION Before working inside your computer read the safety information that shipped with your computer F...

Page 19: ...Follow the instructions in Replacing the Palm Rest Back to Contents Page CAUTION Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance NOTICE To avoid electrostatic discharge ground yourself by using a wrist grounding strap or by pe...

Page 20: ...al safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance CAUTION If you remove the hard drive from the computer when the drive is hot do not touch the metal housing of the hard drive NOTICE To prevent data loss turn off your computer see Turning Off Your Computer before removing the hard drive Do not remove the hard drive while the computer ...

Page 21: ...ng System in your Setup Guide 8 Install the drivers and utilities for your computer as needed see Reinstalling Drivers and Utilities in your Setup Guide Back to Contents Page 1 hard drive cage 2 hard drive NOTICE When the hard drive is not in the computer store it in a protective antistatic package see Protecting Against Electrostatic Discharge in the safety instructions shipped with your computer...

Page 22: ... 5 Remove the center control cover CAUTION Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance NOTICE To avoid electrostatic discharge ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal...

Page 23: ...lace 2 Turn the computer over and replace the screws that secure the hinge cover to the battery bay For the Vostro A840 there are four screws For the Vostro A860 there are eight screws 3 Slide the battery into the battery bay until it clicks in place Back to Contents Page ...

Page 24: ...puter For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance NOTICE To avoid electrostatic discharge ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface such as a connector on the back of the computer NOTICE To help prevent damage to the system board you must remove the batter...

Page 25: ... keyboard and slide them under the palm rest 3 Replace the two screws at the top of the keyboard 4 Replace the center control cover see Center Control Cover 5 Slide the battery into the battery bay until it clicks into place Back to Contents Page ...

Page 26: ...ks into place If the module does not click into place remove the module and reinstall it CAUTION Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance NOTICE To avoid electrostatic discharge ground yourself by using a wrist groundin...

Page 27: ...t 5 Turn on the computer As the computer boots it detects the additional memory and automatically updates the system configuration information To confirm the amount of memory installed in the computer click Start Help and Support Dell System Information Back to Contents Page NOTE If the memory module is not installed properly the computer may not boot 1 tab 2 notch ...

Page 28: ...ring screws from the card 5 Lift the WLAN card out of its system board connector CAUTION Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance NOTICE To help prevent damage to the system board you must remove the battery from the ba...

Page 29: ...ective mylar sleeve 7 Replace the module cover see Replacing the Module Cover and tighten the two securing screws 8 Slide the battery into the battery bay until it clicks in place 9 Install the drivers and utilities for your computer as required For more information see the Dell Technology Guide Back to Contents Page NOTICE The connectors are keyed to ensure correct insertion If you feel resistanc...

Page 30: ...ery into the battery bay until it clicks in place Back to Contents Page CAUTION Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance NOTICE To avoid electrostatic discharge ground yourself by using a wrist grounding strap or by per...

Page 31: ...rom the computer base 11 Turn the computer over and remove the two screws from the top of the palmrest 12 Disconnect the power keyboard device status light touch pad and display hinge connectors from the system board 13 Starting at the top of the palm rest use your fingers to separate the palm rest from the computer base by lifting the inside of the palm rest while pulling in on the outside CAUTIO...

Page 32: ...nd replace the 13 screws in the computer base 5 Replace the display assembly see Replacing the Display Assembly 6 Replace the memory modules see Replacing the Memory Module s 7 Replace the card in the 3 in 1 card slot 8 Replace the WLAN card see Replacing the WLAN Card 9 Replace the hard drive see Replacing the Hard Drive 10 Slide the battery into the battery bay until it clicks in place Back to C...

Page 33: ... screws that secure the speakers to the computer base 3 Follow the instructions in Replacing the Palm Rest 4 Slide the battery into the battery bay until it clicks in place Back to Contents Page CAUTION Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell c...

Page 34: ...ly see Display 7 Remove the keyboard see Removing the Keyboard 8 Remove the palm rest see Palm Rest 9 Remove the 3 in 1 media card reader 10 Disconnect the system fan speaker RJ 11 and DC In cables from the system board connectors 11 Remove the system fan see Removing the System Fan 12 Remove the mylar tapes and then remove the four screws from the back of the computer securing the hard disk 13 Re...

Page 35: ...n Back to Contents Page 1 system board screw 2 2 DC In connector 3 speaker connector 4 RJ 11 connector CAUTION Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance NOTICE Before turning on the computer replace all screws and ensure...

Page 36: ... Vista start button are either trademarks or registered trademarks of Microsoft Corporation in the United States and or other countries Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products Dell Inc disclaims any proprietary interest in trademarks and trade names other than its own September 2009 Rev A01 Back to...

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