Working on Your Computer: Dell Precision M6400 Service Manual
file:///T|/htdocs/systems/wsm6400/en/sm/before.htm[11/16/2012 10:26:20 AM]
1. Ensure that the work surface is flat and clean to prevent the computer cover from being scratched.
2. Shut down your computer.
In Windows XP, click
Start
®
Shutdown
®
Shutdown
.
In Windows Vista, click
Start
, click the arrow
icon, and then click
Shut Down
to turn off your
computer.
NOTE:
Ensure that the computer is off and not in a power management mode. If you cannot shut down the
computer using the operating system, press and hold the power button for 4 seconds.
3. Disconnect your computer and all attached devices from their electrical outlets.
NOTICE:
To disconnect a network cable, first unplug the cable from your computer, and then unplug it from
the network wall jack.
4. Disconnect any telephone or network cables from the computer.
NOTICE:
To help prevent damage to the system board, you must remove the battery from the battery bay
before you service the computer.
5. Turn the computer upside down.
6. Slide the battery release latch and remove the battery.
1 battery 2 battery release latch
7. Disconnect any external devices and remove any cards before working on your computer:
To remove a card, such as an ExpressCard, see the
Dell™ Technology Guide
at
support.dell.com
.
To undock from a docking device, see the
E-Port User's Guide
or the
E-Port Plus User's Guide at
support.dell.com.
