Dell Inspiron 3700 User Manual download pdf (Page 65)

support.dell.com Basic Troubleshooting 3-21

7. Does the computer recognize the external keyboard?

Use the external keyboard to type some characters. Do they appear on the

display?

Ye s . The problem is resolved.

No. Go to step 8.

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?

Ye s . The external keyboard may be defective. Run the

PC-AT Compatible

Keyboards

device group in the Dell Diagnostics. If you cannot isolate the

problem after running the diagnostics, call Dell for technical assistance.

No. Go to step 10.

10. Call Dell for technical assistance.

See Chapter 5, “Getting Help,” for instructions.

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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 random-access memory (RAM) count displayed

correctly match the actual amount of memory installed in the computer?

Ye s . 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.

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Dell Inspiron 3700 User Manual Page 65