Dell Precision M20: Adding and Replacing Parts
Adding and Replacing Parts : Dell Precision M20
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Adding and Replacing Parts
DellPrecision™MobileWorkstationM20User'sGuide
Before You Begin
This chapter provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that the
following conditions exist:
l You have performed the steps in "Turning Off Your Computer" and "Before Working Inside Your Computer."
l YouhavereadthesafetyinformationinyourDell™Product Information Guide.
l A component can be replaced or—if purchased separately—installed by performing the removal procedure in reverse order.
Recommended Tools
The procedures in this document may require the following tools:
l Small flat-blade screwdriver
l Phillips screwdriver
l Small plastic scribe
l Flash BIOS update program floppy or CD
Turning Off Your Computer
1. Shut down the operating system:
a. Save and close any open files, exit any open programs, click the Start button, and then click Turn Off Computer.
b. In the Turn off computer window, click Turn off.
The computer turns off after the operating system shutdown process finishes.
2. Ensure that the computer and any attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut
down your operating system, press and hold the power button for 4 seconds.
Before Working Inside Your Computer
Use the following safety guidelines to help protect your computer from potential damage and to help ensure your own personal safety.
1. Ensure that the work surface is flat and clean to prevent the computer cover from being scratched.
Before You Begin
Memory
Modem
Mini PCI Card
Hard Drive
Keyboard
Internal Card With Bluetooth®Wireless Technology
Coin-Cell Battery
NOTICE: To avoid losing data, save and close any open files and exit any open programs before you turn off your computer.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by its edges or by its metal
mounting bracket. Hold a component such as a processor by its edges, not by its pins.
NOTICE: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not
covered by your warranty.
NOTICE: When you disconnect a cable, pull on its connector or on its strain-relief loop, not on the cable itself. Some cables have a connector with
locking tabs; if you are disconnecting this type of cable, press in on the locking tabs before you disconnect the cable. As you pull connectors apart, keep
them evenly aligned to avoid bending any connector pins. Also, before you connect a cable, ensure that both connectors are correctly oriented and
aligned.
NOTICE: To avoid damaging the computer, perform the following steps before you begin working inside the computer.
2. Turn off your computer.
3. If the computer is connected to a docking device (docked), undock it. See the documentation that came with your docking device for instructions.
4. Disconnect any telephone or network cables from the computer.
5. Close the display and turn the computer upside down on a flat work surface.
6. Disconnect your computer and all attached devices from their electrical outlets, slide and hold the battery-bay latch release on the bottom of the
computer and remove the battery from the bay, and then press the power button to ground the system board.
7. Remove any installed PC Cards from the PC Card slot.
8. Remove any installed modules, including a second battery, if installed.
9. Remove the hard drive.
Memory
You can increase your computer memory by installing memory modules on the system board. See "Specifications" for information on the memory supported by
your computer. Install only memory modules that are intended for your computer.
Your computer has two user-accessible SODIMM sockets, one accessed from beneath the keyboard (DIMM A), and the other accessed from the bottom of the
computer (DIMM B).
To add or replace a memory module in the DIMM A connector:
1. Follow the procedures in "Before You Begin."
2. Remove the keyboard.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
NOTICE: To avoid damaging the system board, you must remove the main battery before you service the computer.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: If your computer has only one memory module, install the memory module in the connector labeled "DIMMA."
NOTICE: If you remove your original memory modules from the computer during a memory upgrade, keep them separate from any new modules that
you may have, even if you purchased the new modules from Dell. If possible, do not pair an original memory module with a new memory module.
Otherwise, your computer may not function at optimal performance.
NOTE: Memory modules purchased from Dell are covered under your computer warranty.
1
memory module (DIMM A)
3. If you are replacing a memory module, ground yourself and remove the existing module:
a. Use your fingertips to carefully spread apart the securing clips on each end of the memory module connector until the module pops up.
b. Remove the module from the connector.
4. Ground yourself and install the new memory module:
a. Align the notch in the module edge connector with the tab in the connector slot.
b. Slide 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.
To add or replace a memory module in the DIMM B connector:
1. Follow the procedures in "Before You Begin."
2. Turn the computer over, loosen the captive screw in the memory module cover, and then remove the cover.
NOTICE: To prevent damage to the memory module connector, do not use tools to spread the memory-module securing clips.
1
securing clips (2 per connector)
2
memory module
NOTICE: If you need to install memory modules in two connectors, install a memory module in the connector labeled "DIMMA" before you install a
module in the connector labeled "DIMMB." 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.
3. If you are replacing a memory module, ground yourself and remove the existing module:
a. Use your fingertips to carefully spread apart the securing clips on each end of the memory module connector until the module pops up.
b. Remove the module from the connector.
4. Ground yourself and install the new memory module:
a. Align the notch in the module edge connector with the tab in the connector slot.
b. Slide 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.
5. Replace the cover.
6. Insert the battery into the battery bay, or connect the AC adapter to your computer and an electrical outlet.
7. 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:
®
®
l In the Microsoft
Windows
XP operating system, click the Start button, click Help and Support, and then click Computer Information.
l In Windows 2000, right-click the My Computer icon on your desktop, and then click the General tab.
Modem
1
captive screw
NOTICE: To prevent damage to the memory module connector, do not use tools to spread the memory-module securing clips.
1
securing clips (2 per connector)
2
memory module
NOTICE: If you need to install memory modules in two connectors, install a memory module in the connector labeled "DIMMA" before you install a
module in the connector labeled "DIMMB." 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.
NOTICE: If the cover is difficult to close, remove the module and reinstall it. Forcing the cover to close may damage your computer.
If you ordered the optional modem at the same time that you ordered your computer, the modem is already installed
1. Follow the procedures in "Before You Begin."
2. Turn the computer over and release the captive screw from the modem cover.
3. Place your finger under the cover at the indentation and lift the cover open.
4. If a modem is not already installed, go to step5. If you are replacing a modem, remove the existing modem:
a. Remove the screws securing the modem to the system board, and set them aside.
b. Pull straight up on the attached pull-tab to lift the modem out of its connector on the system board, and disconnect the modem cable.
5. Connect the modem cable to the modem.
6. Align the modem with the screw holes and press the modem into the connector on the system board.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
1
captive screw
1
screw
2
modem
3
coin-cell battery
NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors and realign the card.
7. Install the screws to secure the modem to the system board.
8. Replace the cover.
Mini PCI Card
If you ordered a Mini PCI card with your computer, the card is already installed.
1. Follow the procedures in "Before You Begin."
2. Remove the keyboard.
3. If a Mini PCI card is not already installed, go to step4. If you are replacing a Mini PCI card, remove the existing card:
a. Disconnect the Mini PCI card from any attached cables.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
1
Mini PCI card
2
antenna wires (2)
1
Mini PCI card
2
metal securing tabs (2)
b. Release the Mini PCI card by spreading the metal securing tabs until the card pops up slightly.
c. Lift the Mini PCI card out of its connector.
4. Align the Mini PCI card with the connector at a 45-degree angle, and press the Mini PCI card into the connector until you feel a click.
5. Connect the antenna cables to the Mini PCI card.
6. Replace the cover and screws.
Hard Drive
NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors and realign the card.
1
Mini PCI card
2
metal securing tabs (2)
1
Mini PCI card
2
antenna wires (2)
NOTICE: To avoid damaging the Mini PCI card, never place cables on top of or under the card.
To replace the hard drive in the hard drive bay:
1. Follow the procedures in "Before You Begin."
2. Turn the computer over, and remove the hard drive screws.
3. Slide the hard drive out of the computer.
4. Remove the new drive from its packaging.
Save the original packaging for storing or shipping the hard drive.
5. Slide the hard drive into the bay until it is fully seated.
6. Replace and tighten the screws.
7. Use the Operating System CD to install the operating system for your computer.
8. Use the Drivers and Utilities CD to install the drivers and utilities for your computer.
Keyboard
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 working inside your computer, follow the safety instructions in the Product Information Guide.
NOTICE: To prevent data loss, turn off your computer 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.
1
screws (2)
2
hard drive
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.
NOTICE: Use firm and even pressure to slide the drive into place. If you use excessive force, you may damage the connector.
CAUTION: Before performing the following procedures, read the safety instructions in your Product Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such
as the back panel) on the computer.
1. Follow the instructions in "Before You Begin."
2. Turn the computer right-side up and open it.
3. Remove the center control cover:
a. Open the display all the way (180 degrees) so that it lies flat against your work surface.
b. Starting on the right side of the computer, use a plastic scribe to pry up the center control cover. Lift it away from the computer, and lay it aside.
4. Remove the keyboard:
a. Remove the two M2.5 x 6-mm screws across the top of the keyboard.
b. Rotate the keyboard up 90-degrees and slide it forward to gain access to the keyboard connector.
c. Pull up on the keyboard connector tab to disconnect the keyboard connector from the system board.
1
display
2
center control cover
3
computer base
1
center control cover
NOTICE: The keycaps on the keyboard are fragile, easily dislodged, and time-consuming to replace. Be careful when removing and handling the
keyboard.
NOTE: Lift the keyboard carefully in stepb to ensure that you do not pull on the keyboard wire.
NOTE: When you replace the keyboard, ensure that the keyboard tabs are completely in place to avoid scratching the palm rest.
Internal Card With Bluetooth®Wireless Technology
If you ordered an internal card with Bluetooth wireless technology with your computer, it is already installed.
1. Remove the battery.
2. Open the card door.
3. Using a plastic scribe or screwdriver, gently pry the module from the plastic guide bracket and the compartment so that you can disconnect the card from
its cable and remove it from the computer.
1
M2.5 x 6-mm screws (2)
2
keyboard connector pull-tab
3
keyboard tabs
4
palm rest
CAUTION: Before performing the following procedures, read the safety instructions in your Product Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching a connector on the back panel of
the computer.
NOTICE: To avoid damaging the system board, you must remove the main battery before you begin working inside the computer.
1
card connector
2
card
3
door
Coin-Cell Battery
1. Follow the procedures in "Before You Begin."
2. Turn the computer over and release the captive screw on the modem cover.
3. Place your finger under the cover at the indentation and lift the cover open.
4. Gently draw the coin-cell battery from the coin-cell-battery pocket, and disconnect the battery cable.
CAUTION: Before performing the following procedures, read the safety instructions in your Product Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching a connector on the back panel of
the computer.
NOTICE: To avoid damaging the system board, you must remove the main battery before you begin working inside the computer.
1
captive screw
NOTICE: To avoid damaging the system board, make sure you do not remove the plastic film between the battery and the system board as you remove
the double-sided tape from the coin-cell battery.
NOTICE: To avoid damaging the system board or modem card, retain the double-sided tape and secure the replacement coin-cell battery to the plastic
film between the battery and the system board.
1
coin-cell battery
2
cable connector
3
battery cable connector
4
coin-cell battery pocket
5. Replace the cover.
Back to Contents Page
Оглавление
- DellPrecision™MobileWorkstationM20User'sGuide
- About Your Computer
- Appendix
- Alert Standard Format (ASF)
- Using a Battery
- Using the Module Bay
- Using CDs, DVDs, and Other Multimedia
- Cleaning Your Computer
- Dell Diagnostics
- Using the Display
- Reinstalling Software
- Finding Information
- Getting Help
- Glossary
- Using the Keyboard and Touch Pad
- Passwords
- Using PC Cards
- Power Management
- Dell™QuickSetFeatures
- Adding and Replacing Parts
- Using the System Setup Program
- Using Smart Cards
- Solving Problems
- Specifications
- Travelling With Your Computer
- Connecting to a Wireless Local Area Network
- Using Microsoft®Windows®XP
