Lenovo IdeaCentre D400 Lenovo IdeaCentre D400 Series Hardware Maintenance Manu - Page 20

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General checkout 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. 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. 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. 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. 15

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15
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.
General checkout