Dell PowerEdge 2450, Инструкция по установке и устранению неисправностей

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support.dell.com Checking the Equipment 6-3
2. Swap the faulty keyboard with a working keyboard. To swap a faulty keyboard,
unplug the keyboard cable from the computer's back panel and plug in a working
keyboard.
Is the problem resolved?
Yes . The keyboard must be replaced. See Chapter 11, “Getting Help,” for instruc-
tions on obtaining technical assistance.
No .
Go to step 3.
3. Run the keyboard test in the Dell Diagnostics.
Can you use the keyboard to select the keyboard test?
Yes . Go to step 5.
No . Go to step 4.
4. Swap the faulty keyboard with a working keyboard.
5. Did the keyboard test run successfully?
Yes . The keyboard must be replaced. See Chapter 11, “Getting Help,” for instruc-
tions on obtaining technical assistance.
No . The keyboard controller on the system board is faulty. See Chapter 11, “Get-
ting Help,” for instructions on obtaining technical assistance.
This procedure determines whether the computer's basic I/O functions are opera-
tional. If a system error message indicates an I/O port problem or the device
connected to the port does not function properly, perform the following steps:
1. Enter the System Setup program, and check the Serial Port 1 , Serial Port 2 , and
Parallel Port
settings.
Are the communications ports set to Enabled ?
Yes . Go to step 3.
No . Go to step 2.
2. Change the Serial Port 1 , Serial Port 2 , and Parallel Port settings to Enabled ;
then reboot the system.
Is the problem resolved?
Yes . You have fixed the problem.
No . Go to step 3.