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...

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...

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...

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...

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...

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...

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...

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...

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...

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...