8.Turn off the computer and disconnect the external keyboard from the computer.
9.Turn on the computer. Does the computer recognize the integrated keyboard?
Allow one minute for the computer to initialize its components. Then use the computer’s integrated keyboard to type some characters. Do the characters appear on the display?
Yes. The external keyboard may be defective. Run the
No. Go to step 10.
10.Call Dell for technical assistance.
See Chapter 5, “Getting Help,” for instructions.
Troubleshooting Memory
During POST, the computer checks the computer’s memory, and then writes to and reads from the number of available bytes to ensure proper operation. If the memory count displayed is less than the amount installed, make a copy of the Diagnostics Checklist found in Chapter 5 and fill it out as you perform the following steps:
1.Reboot the computer. Does the
Yes. The computer needed to update the memory; the memory check phase is okay now.
No. Go to step 2.
2.Save and close any open files, exit any open application programs, and remove any installed batteries.
3.Turn off the computer and disconnect it from the AC adapter. Then disconnect the AC adapter from the electrical outlet. Turn off any attached peripherals, and disconnect them from their power sources and then from the computer.
4.Ground yourself by touching one of the metal connectors on the back of the computer.
5.Turn the computer over and remove the memory module cover and the memory modules.
Refer to “Installing Memory Modules” in Chapter 2.
6.Install the new memory module(s).
Refer to “Installing Memory Modules” in Chapter 2.
7.Replace the memory module cover.
support.dell.com | Basic Troubleshooting |
