Dell Latitude LM - Manual (Page 46)

3-12 Dell Latitude LM Reference and Troubleshooting Guide
4. Using a small screwdriver, remove the memory
cover from the bottom of the computer. Remove
and reinstall any memory modules, and then
replace the memory cover.
To remove a memory module, carefully spread apart
the inner metal tabs of the memory module socket
just far enough for the memory module to disengage
from the socket (the module should pop up slightly).
Then lift the memory module away from the socket.
To reinstall a memory module, align the memory
module’s edge connector with the slot in the center
of the memory module socket. Press the memory
module’s edge connector firmly into the socket.
Pivot the module down until it clicks into place. If
you do not hear a sharp click, remove the memory
module and reinstall it.
NOTE: Memory modules must be installed in
matched pairs. That is, memory modules of the same
capacity must be installed in both memory module
sockets.
5. Install the diskette drive in the options bay.
6. Verify that any installed PC Cards are properly
seated in the PC Card connectors.
7. Replace any batteries that you removed in step 2.
8. Reconnect the computer and peripherals to AC
power, and turn them on.
9. Run the Dell diagnostics to verify that the com-
puter is operating properly. (See Chapter 4,
“Running the Dell Diagnostics,” for instructions.)
10. If the computer does not operate properly, make
a copy of the Diagnostics Checklist found in
Chapter 5 and fill it out. Then call Dell for techni-
cal assistance. (See Chapter 5, “Getting Help,”
for instructions.)
Troubleshooting a Power Failure
Occasionally, you may experience a power failure in all
or part of the computer. A total power failure is indicated
by the absence of electrical activity (such as status indi-
cators and sounds) from the keyboard, display, hard-disk
drive, and diskette drive. In a partial power failure, one or
more of these indicators shows that there is power to a
part of the computer.
To determine if there is any power to the computer, make
a copy of the Diagnostics Checklist found in Chapter 5
and fill it out as you complete the following procedure:
1. Turn off the computer. Do the power indicator
and battery indicator(s) appear on the status
display panel?
Yes. Go to step 2.
No. Go to step 3.
2. Remove any installed batteries, and disconnect
the AC adapter. Then reinstall the batteries,
reconnect the AC adapter, and turn on the
computer. Do the power indicator and battery
indicator(s) appear on the status display panel?
Yes. Go to step 4.
No. Go to step 3.
3. Turn off the computer, wait a few seconds, and
then turn on the computer again. Do the indica-
tors appear on the status display panel?
Yes. Your computer is receiving power. Go to step 4.
No. Your computer is not receiving power. Go to
step 5.
4. Does the computer boot successfully?
Yes. The problem is resolved.
No. Go to step 5.
5. Reseat (remove and reinstall) any installed bat-
teries, and check the AC adapter connection. Do
the indicators appear in the status display panel?
Yes. The problem is resolved.
No. If the computer is powered by the AC adapter,
see the next subsection, “Total Power Failure When
Using the AC Adapter.” If the computer is using bat-
tery power, see “Total Power Failure When Using a
Battery” found later in this section.
6. Call Dell for technical assistance.
See Chapter 5, “Getting Help,” for instructions.