Dell Dimension L Series, Справочное и ремонтное руководство

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support.dell.com Checking Inside Your Computer 6-5 5
6. Check the network connections if the network hardware is functional. heck the network connections if the network hardware is functional.
a. Check the network card connector for physical damage.
b. Ensure that the cable is inserted properly.
c. Replace the patch cable or network cable from the wall jack to the computer.
d. If replacing the patch cable or network cable does not solve the problem, try
moving the computer to known good location on the network.
e. If you still cannot connect to the network, ensure that the right drivers are
being used.
If the network card is still not detected, refer to Chapter 7, “Getting Help,” for infor-
mation on obtaining technical assistance. If the network card is detected, repeat
step 1
1.
System Memory
If a random-access memory (RAM) error message appears, troubleshoot the memory
by performing the following steps:
1. Turn on the computer and monitor.
2. If you hear a beep code or if you see a diagnostic code, refer to Appendix C, C,
“Diagnostic Codes, Beep Codes, and System Messages.”
3. If you received an error message after making changes in the system setup pro-
gram, restore the original values and restart the system.
4. Enter the system setup program as described in Appendix B, “System Setup
Program,” and verify
Total Memory on the Main screen.
If the memory amount displayed does not match the computer’s configuration,
reseat the dual in-line memory modules (DIMMs
MMs) as described in the next
subsection.
NOTE: The system memory value reported by the operating system is 1 or 2 MB less E: The system memory value reported by the operating system is 1 or 2 MB less
than the memory installed because that memory is reserved for video functions. For . For
example, if the computer has 32 MB of system memory, the operating system may
report 30 or 31 MB.
Reseating DIMMs
1. Remove the computer cover and rotate the power supply as described in
“Removing and Replacing the Computer Cover” and “Rotating the Power Supply
Away From the System Board” in Chapter 2.
2. Remove the DIMMs as described in “Removing a DIMM” in Chapter 2 bed in “Removing a DIMM” in Chapter 2.