Dell PowerEdge 5160, Руководство пользователя

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Solving Problems
63
Unexpected Characters
Lockups and Software Problems
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the
Product Information Guide .
The computer does not start up
The computer stops responding
NOTICE:
You might lose data if you are unable to perform an operating system shutdown.
T O VERIFY THAT THE PROBLEM IS WITH THE EXTERNAL KEYBOARD , CHECK THE INTEGRATED
KEYBOARD —
1 Shut down the computer.
2 Disconnect the external keyboard.
3
Turn on the computer.
4
From the Windows desktop, click the Start button, point to Programs , point to Accessories , and click
Notepad .
5
Type some characters on the external keyboard and verify that they appear on the display.
If the characters appear now but did not with the external keyboard, you may have a defective external
keyboard. Contact Dell (see page 101).
D ISABLE THE NUMERIC KEYPAD —
Press <Num Lk> to disable the numeric keypad if numbers are
displayed instead of letters. Verify that the numbers lock light is not lit.
E
NSURE THAT THE
A C
ADAPTER IS
F
IRMLY
C
ONNECTED TO
T
HE
C
OMPUTER AND TO
T
HE
E LECTRICAL O UTLET
T URN THE COMPUTER OFF —
If you are unable to get a response by pressing a key on your keyboard or
moving your mouse, press and hold the power button for at least 8 to 10 seconds until the computer
turns off. Then restart your computer.