Processor, Removing the processor – Dell Dimension C521 User Manual
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To replace the battery:
1.
Record all of the settings in system setup (see
System Setup Options
) so that you can restore the correct settings in
2.
Follow the procedures in
Before You Begin
.
3.
Locate the battery socket.
4.
Remove the battery by carefully pressing the battery release lever away from the battery.
When the battery release lever is properly pressed, the battery should spring out of the socket.
5.
Insert the new battery into the socket with the side labeled "+" facing up, and snap the battery into place.
6.
Replace the computer cover. See
Replacing the Computer Cover
.
7.
Connect your computer and devices to electrical outlets, and then turn them on.
8.
Enter system setup (see
System Setup
) and restore the settings you recorded in
.
The system will log a low battery event in the event log. You can clear the log event from System Setup.
9.
Properly dispose of the old battery. See the Product Information Guide for battery disposal information.
Processor
Removing the Processor
1.
Follow the procedures in
Before You Begin
.
2.
Loosen the captive screw on each side of the heat sink assembly.
3.
Rotate the heat sink assembly upward, and remove the assembly from the computer.
Lay the heat sink assembly down on its top, with the thermal grease facing upward.
1
battery
2
battery release lever
3
battery socket
NOTICE:
To connect a network cable, first plug the cable into the network port or device, and then plug it into the computer.
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.
CAUTION:
Despite having a plastic shield, the heat sink assembly may be very hot during normal operation. Be sure that it has had sufficient time
to cool before you touch it.
NOTICE:
To avoid damaging the processor or processor socket, slide the heat sink assembly forward and backwards to break the thermal grease seal
between the processor and heat sink. If you do not break the seal first, the processor may stick to the heat sink assembly while rotating the assembly
upward.