Installing System Board Options 7-97
Figure 7-12. Installing the Heat Sink
10. Replace the microprocessor securing clip.
Orient the clip as shown in Figure 7-12, and hook the
unfolded end of the clip over the tab on the edge of
the socket facing the front of the computer. Then
press down on the folded end of the clip to snap the
clip over the tab on the back of the socket.
11. Change the microprocessor speed jumper setting
to correspond to the new microprocessor’s oper-
ating frequency.
The microprocessor speed jumper should be set for
the installed microprocessor’s rated internal speed.
For example, for a 200-megahertz (MHz) Intel Pen-
tium Pro processor, a jumper plug should be installed
on the jumper labeled “200MHZ.” (See Appendix B,
“Hardware Configuration Features,” for more infor-
mation on the jumpers.)
12. Replace the system board according to the
instructions in “Replacing the System Board
Assembly” in Chapter 6.
13. Replace the computer cover according to the
instructions in “Replacing the Computer Cover”
in Chapter 6.
14. Remove the front bezel according to the instruc-
tions in “Removing the Front Bezel” in Chapter 6.
15. Remove the old badge from the front of the com-
puter and install the new one.
The badge is secured to the front bezel with three
metal tabs. Press on all three tabs at once to release
the detent that holds them in place, and then push
them out of the front bezel. To install the new badge,
insert the three metal tabs through the slots in the
front bezel and press on the badge until the detents
on the tabs lock into place.
16. Replace the front bezel according to the instruc-
tions in “Replacing the Front Bezel” in Chapter 6.
17. Reconnect your computer and peripherals to
their power sources, and turn them on.
As the system boots, it detects the presence of the
new microprocessor and automatically changes the
system configuration information in the System
Setup program.
18. Enter the System Setup program, and confirm
that the Microprocessor category correctly identi-
fies the installed microprocessor.
See Chapter 4, “Using the System Setup Program.”
19. Run the diskette-based Dell diagnostics to verify
that the new microprocessor is operating
correctly.
See your Diagnostics and Troubleshooting Guide for
information on running the diagnostics and troubleshooting
any problems that may occur.
heat sink
microprocessor
chip
microprocessor
socket
clip
thermal pad
(bonded to heat
sink)