Dell Insp 640 M Manual

							Adding and Replacing Parts111
6Remove the optical drive, if installed, from the optical drive bay. See Optical Drives on page 114.
7Press the power button to ground the system board. 
8Remove any installed ExpressCards from the ExpressCard slot. See Removing an ExpressCard or 
Blank on page 66.
9Remove any installed media memory cards from the 5-in-1 media memory card reader. See Media 
Memory Card Blanks on page 67.
10Close the display and turn the computer upside down on a flat work surface.
Hard Drive
 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.
 
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product 
Information Guide.
 
NOTICE: To prevent data loss, turn off your computer (see page 109) before removing the hard drive. Do not 
remove the hard drive while the computer is on, in standby mode, or in hibernate mode.
 
NOTICE: Hard drives are extremely fragile; even a slight bump can damage the drive.
 
NOTE: Dell does not guarantee compatibility or provide support for hard drives from sources other than Dell.
 
NOTE: If you are installing a hard drive from a source other than Dell, you need to install an operating system, 
drivers, and utilities on the new hard drive. 1battery2battery-bay latch release
2 1 
						

							112Adding and Replacing Parts
To replace the hard drive in the hard drive bay:
1
Follow the procedures in Before You Begin on page 109.
2Turn the computer over, and loosen the two captive screws in the hard drive cover.
 NOTICE: When the hard drive is not in the computer, store it in protective antistatic packaging. See Protecting 
Against Electrostatic Discharge in the Product Information Guide.
3Lift the cover off the computer and set it aside. 
4Use your finger to slide the hard drive toward the screw holes, and then use the pull-tab to lift the hard 
drive straight up to remove it from the computer.
1screws (2)
1 
						

							Adding and Replacing Parts113
5Remove the new drive from its packaging.
Save the original packaging for storing or shipping the hard drive.
 NOTICE: Use firm and even pressure to slide the drive into place. If you use excessive force, you may damage the 
connector.
6Seat the new hard drive into the bay, and then slide it into the connector by sliding it away from the 
screw holes until it is fully seated.
7Replace the cover and tighten the screws.
8Install the operating system for your computer. See Restoring Your Operating System on page 104.
9Install the drivers and utilities for your computer. See Reinstalling Drivers and Utilities on page 101. 
Returning a Hard Drive to Dell
Return your old hard drive to Dell in its original or comparable foam packaging. Otherwise, the hard 
drive may be damaged in transit.
1pull-tab2hard drive
2
1 
						

							114Adding and Replacing Parts
Optical Drives
About the Device Security Screw
 NOTE: You do not need to install the device security screw unless you want to prevent the module from being 
easily removed.
Your Dell™ computer ships with an optical drive installed in the module bay and a device security screw, 
which may not be installed in the optical drive but packaged separately. When you install a module in 
the bay, you can install the device security screw to prevent the module from being easily removed.
Removing and Installing Optical Drives
 NOTICE: To prevent damage to drives, store them in a safe, dry place when they are not installed in the computer. 
Avoid pressing down on them or placing heavy objects on top of them.
1While the computer is turned on, double-click the Safely Remove Hardware icon on the taskbar, click 
the device that you want to eject, and click 
Stop. 
2Close your display and turn the computer upside-down. 
3Use a Phillips screwdriver to remove the device security screw from the bottom of the computer. 
4Insert a Phillips screwdriver into the screw hole to push the drive out of the module bay. 
1foam packaging2hard drive
2
1 
						

							Adding and Replacing Parts115
5Pull the drive straight out of the module bay. 
6Push the new drive straight into the module bay until it clicks.
7Replace the security device screw. 
8Turn the computer right-side up and open the display. 
9The operating system automatically recognizes the drive. If necessary, enter your password to unlock 
your computer.
Memory 
You can increase your computer memory by installing memory modules on the system board. See 
Specifications on page 157 for information on the memory supported by your computer. Install only 
memory modules that are intended for your computer.
 NOTE: This computer supports both 533MHz and 667MHz memory modules. If installing another memory module, 
you need to ensure both DIMMs have a speed of 667MHz. If one is 533MHz and the other is 667MHz, the computer 
will only run at the lower speed of 533MHz and not the maximum memory speed of 667MHz.
 
NOTE: Memory modules purchased from Dell are covered under your computer warranty.
 
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product 
Information Guide. 
						

							116Adding and Replacing Parts
The computer has two memory module connectors labeled DIMM A and DIMM B. Connector 
DIMM A (located under the keyboard) holds the basic memory module as configured from the factory. If 
you did not order additional memory, connector DIMM B (located on the bottom of the computer under 
the memory module cover) will be empty. Generally, if you are adding memory, you will install a memory 
module in connector DIMM B. If you are upgrading memory, you may need to install memory in both 
the DIMM A and B connectors, depending on the extent of the upgrade.
Installing a Memory Module in Connector DIMM B
1Follow the procedures in Before You Begin on page 109. 
2Ground yourself by touching one of the metal connectors on the back of the computer. 
 NOTE: If you leave the area, ground yourself again when you return to the computer. 
3Turn the computer over, loosen the captive screws on the memory module cover, and then remove the 
memory module cover.
 NOTICE: To prevent damage to the memory module connector, do not use tools to spread the memory-module 
securing clips.
4If you are replacing a memory module, remove the existing module:
aUse your fingertips to carefully spread apart the securing clips on each end of the memory module 
connector until the module pops up. 
bRemove the module from the connector.
1screws (2)2memory module cover
1
2 
						

							Adding and Replacing Parts117
 NOTICE: If you need to install memory modules in two connectors, install a memory module in the connector 
labeled “DIMM A” before you install a module in the connector labeled “DIMM B.” Insert memory modules at a 
45-degree angle to avoid damaging the connector.
 
NOTE: If the memory module is not installed properly, the computer may not boot properly. No error message 
indicates this failure.
5Ground yourself and install the new memory module:
aAlign the notch in the module edge connector with the tab in the connector slot.
bSlide the module firmly into the slot at a 45-degree angle, and rotate the module down until it 
clicks into place. If you do not feel the click, remove the module and reinstall it.
1memory module2securing clips 
(2 per connector)
1
2 
						

							118Adding and Replacing Parts
6Replace the memory module cover and tighten the screws.
 NOTICE: If the cover is difficult to close, remove the module and reinstall it. Forcing the cover to close may 
damage your computer.
7Insert the battery into the battery bay, or connect the AC adapter to your computer and an electrical 
outlet.
8Reinstall the hard drive. See Hard Drive on page 111.
9Turn 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 the Start button, click Help and 
Support, and then click Computer Information.
Installing a Memory Module in Connector DIMM A
The memory module connector labeled DIMM A is located under the keyboard.
1
Follow the procedures in Before You Begin on page 109. 
2Ground yourself by touching one of the metal connectors on the back of the computer. 
 NOTE: If you leave the area, ground yourself again when you return to the computer.  1tab in connector slot
1 
						

							Adding and Replacing Parts119
3Remove the hinge cover. See Hinge Cover on page 125.
 NOTE: Ensure that you remove the two screws in the battery bay as part of the hinge removal procedure.
4Remove the keyboard. See Keyboard on page 127.
  NOTICE: To prevent damage to the memory module connector, do not use tools to spread the memory-module 
securing clips.
5If you are replacing a memory module, remove the existing module:
aUse your fingertips to carefully spread apart the securing clips on each end of the memory module 
connector until the module pops up. 
bRemove the module from the connector.
 NOTICE: If you need to install memory modules in two connectors, install a memory module in the connector 
labeled “DIMM A” before you install a module in the connector labeled “DIMM B.” Insert memory modules at a 
45-degree angle to avoid damaging the connector.
 
NOTE: If the memory module is not installed properly, the computer may not boot properly. No error message 
indicates this failure.
6Ground yourself and install the new memory module:
aAlign the notch in the module edge connector with the tab in the connector slot.
bSlide the module firmly into the slot at a 45-degree angle, and rotate the module down until it 
clicks into place. If you do not feel the click, remove the module and reinstall it.
1memory module2securing clips 
(2 per connector)
1
2 
						

							120Adding and Replacing Parts
7Replace the keyboard. See Keyboard on page 127.
8Replace the hinge cover. See Hinge Cover on page 125.
 NOTE: Ensure that you replace the two screws inside the battery bay as part of the hinge replacement 
procedure.
9Insert the battery into the battery bay, or connect the AC adapter to your computer and an electrical 
outlet.
10Reinstall the hard drive. See Hard Drive on page 111.
11Turn 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 the Start button, click Help and 
Support, and then click Computer Information.
1tab in connector slot
1