dell latitude c800 User Manual

							Removing and Replacing Parts : Dell Latitude C800/C805 Service Manual 
3.  Reinstall the 4-mm screw that secures the flex cable mounting bracke\
t to the top cover. 
4.  Starting on the left side, use a magnetic screwdriver to reinstall t\
he six 3-mm screws  that secure the display panel in the top cover. 
5.  Reinstall the display flex cable strain-relief screw and reconnect t\
he flex cable to the  graphics card. 
6.  Reinstall the display assembly bezel. 
Removing the Display Latch 
Removing the Display Latch 
 
1.  Remove the
 hinge cover. 
2.  Detach the
 display flex cable from the strain relief and the graphics card. 
3.  Remove the display assembly bezel. 
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							Removing and Replacing Parts : Dell Latitude C800/C805 Service Manual 
4.  Remove the display panel from the top cover. 
5.  Remove the display latch by unsnapping the latch and captive spring.\
 
Microprocessor Thermal Cooling Assembly 
NOTICE: Disconnect the computer and attached devices from electrical outlets and\
 
remove any installed batteries. 
NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by 
periodically touching unpainted metal on the computer. 
Retaining Clip 
 
Removing the Microprocessor Thermal Cooling 
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							Removing and Replacing Parts : Dell Latitude C800/C805 Service Manual 
Assembly 
1.  Follow the instructions in Preparing to Work Inside the Computer. 
2.  Remove the 
keyboard. 
3.  Remove the
 hinge cover. 
4.  Insert a flat-blade screwdriver into the latch mechanism at the left\
 side of the  microprocessor retaining clip. Pry open the clip by pivoting the top of \
the screwdriver 
toward the right side of the computer. 
Microprocessor Thermal Cooling Assembly 
 
NOTICE: To ensure maximum cooling for the microprocessor, do not touch the heat \
transfer areas on the microprocessor thermal cooling assembly. The oils \
in your skin 
reduce the heat transfer capability of the thermal pads. 
5.  Lift out the thermal cooling assembly. 
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							Removing and Replacing Parts : Dell Latitude C800/C805 Service Manual 
Microprocessor Module 
NOTICE: Disconnect the computer and attached devices from electrical outlets and\
 
remove any installed batteries. 
NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by 
periodically touching unpainted metal on the computer. 
Microprocessor Module 
 
Removing the Microprocessor Module 
1.  Follow the instructions in Preparing to Work Inside the Computer. 
2.  Remove the
 keyboard. 
3.  Remove the
 hinge cover. 
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							Removing and Replacing Parts : Dell Latitude C800/C805 Service Manual 
NOTICE: To ensure maximum cooling for the microprocessor, do not touch the heat \
transfer areas on the thermal cooling assembly. The oils in your skin re\
duce the heat 
transfer capability of the thermal pads. 
4.  Remove the
 microprocessor thermal cooling assembly. 
NOTICE: When removing the microprocessor module, pull the module straight up. 
Do not bend the pins. 
5.  Remove the microprocessor module. 
NOTICE: To avoid damage to the microprocessor, hold the screwdriver so that it i\
s 
perpendicular to the microprocessor when removing the cam lock screw (s\
ee 

Microprocessor Cam Lock Screw). 
a.  Loosen the microprocessor socket cam lock screw. The location of the\
 screw  and the rotation direction may vary with the socket manufacturer; look f\
or 
small icons indicating open and locked positions. 
Microprocessor Cam Lock Screw (Example) 
NOTICE: Hold the microprocessor down while turning the cam lock screw to prevent\
 
intermittent contact between the cam lock screw and microprocessor. 
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							Removing and Replacing Parts : Dell Latitude C800/C805 Service Manual 
 
b.  Use the microprocessor extraction tool to remove the microprocessor \
module. 
Replacing the Microprocessor Module 
NOTICE: If you received a flash BIOS update program diskette or CD with the 
replacement microprocessor, you must update the BIOS after replacing the\
 
microprocessor module. For instructions on updating or reflashing the BI\
OS, see the 
Dell Portable Computer BIOS Update Guide. 
NOTICE: Proper seating of the microprocessor module does not require force. 
NOTICE: A microprocessor module that is not properly seated can result in an 
intermittent connection and subsequent failures. 
1.  Align the pin-1 triangle on the microprocessor toward the pin-1 tria\
ngle in the  socket, insert the microprocessor into the socket, and move it around sl\
ightly until 
you feel it settle into the socket. 
When the microprocessor module is correctly seated, all four corners are\
 aligned to 
the same height. If one or more corners of the module are higher than th\
e others, the 
module is not seated correctly.
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							Removing and Replacing Parts : Dell Latitude C800/C805 Service Manual 
NOTICE: Hold the microprocessor down while turning the cam lock screw to prevent\
 
intermittent contact between the cam lock screw and microprocessor (see\
 

Microprocessor Cam Lock Screw). 
2.  Tighten the cam lock screw. 
NOTICE: Do not over- or undertighten the screw. Tighten it until the screw indic\
ator 
points to the closed or locked indicator on the socket. 
3.  Replace the microprocessor thermal cooling assembly. 
Closing the Microprocessor Retaining Clip 
 
4.  While pressing lightly down on the center of the retaining clip, ins\
ert a flat-blade  screwdriver into the latch mechanism and pivot the top of the screwdrive\
r away from 
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							Removing and Replacing Parts : Dell Latitude C800/C805 Service Manual 
the clip to close the latch. 
Video Graphics Board 
NOTICE: Disconnect the computer and attached devices from electrical outlets and\
 
remove any installed batteries. 
NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by 
periodically touching unpainted metal on the computer. 
Video Graphics Board 
 
Removing the Video Graphics Board 
1.  Follow the instructions in Preparing to Work Inside the Computer. 
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							Removing and Replacing Parts : Dell Latitude C800/C805 Service Manual 
2.  Remove the keyboard. 
3.  Remove the
 hinge cover. 
4.  Detach the
 display flex cable from the strain relief and the graphics card. 
5.  Remove the three 8-mm screws that secure the video graphics board. 
6.  Separate the video graphics board from the system board connector. 
Replacing the Video Graphics Board 
1.  Align the three screw holes and press down firmly on the word Dell\
 to seat the  board in its connector. 
NOTICE: Make sure the board is correctly and firmly seated before continuing. 
Failure to do so will cause intermittent video failures. 
2.  Replace the three screws. 
Palmrest Assembly 
NOTICE: Disconnect the computer and attached devices from electrical outlets and\
 
remove any installed batteries. 
NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by 
periodically touching unpainted metal on the computer. 
Palmrest Assembly 
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							Removing and Replacing Parts : Dell Latitude C800/C805 Service Manual 
 
NOTICE: The reserve battery provides power to the computers time RTC and 
NVRAM when the computer is turned off. Removing the palmrest disconnects\
 the 
reserve battery and causes the computer to lose the date and time inform\
ation as 
well as all user-specified parameters in NVRAM. If possible, make a copy\
 of this 
information before you disconnect the reserve battery. 
Removing the Palmrest Assembly 
1.  Follow the instructions in Preparing to Work Inside the Computer. 
2.  Remove the
 hard drive and the fixed optical drive. 
3.  Remove the 
keyboard. 
4.  Remove the
 hinge cover. 
5.  Remove the
 display assembly. 
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