Lenovo D400 Desktop IdeaCentre User Manual download pdf (Page 20)

General error messages appear if a problem or conflict is found by an

application program, the operating system, or both. For an explanation of these

messages, refer to the information supplied with that software package.

Use the following procedure to help determine the cause of the problem:

1. Power-off the home center and all external devices.

2. Check all cables and power cords.

3. Power-on all external devices.

4. Power-on the home center.

• Inspect the LED indicators on the front panel, which can indicate the

malfunction. See the User Guide for information about the LED indicators.

• Look for displayed error codes. Refer to “POST error codes”.

• Look for readable instructions or a main menu on the display.

• If you did not receive the correct response, proceed to step 5.

• If you do receive the correct response, proceed to step 7.

Attention

The drives in the home center you are servicing might have been rearranged

or the drive startup sequence changed. Be extremely careful during write

operations such as copying, saving, or formatting. Data or programs can be

overwritten if you select an incorrect drive.

Notes

• The default is for the home center to boot up in quiet mode (no beep, no

memory count, no error codes, and checkpoint code display) when no

errors are detected by POST.

• Before replacing any FRUs, ensure that the latest level of BIOS is installed

on the system. A down-level BIOS might cause false errors and

unnecessary replacement of the system board.

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Lenovo D400 Desktop IdeaCentre User Manual Page 20