• Ensure that video resolution is set to less than 1152 x 864.
If these actions do not correct the problem, run the diagnostic programs (see “Lenovo Solution Center” on
page 53 for instructions). If you need technical assistance, see “Lenovo Support Web site” on page 32.
Invalid disc or no disc found message
Symptom: Invalid disc or no disc found message
Actions:
• Ensure that a DVD disc is in the drive with the shiny side of the disc facing down.
• Ensure that video resolution is set to less than 1152 x 864.
• On computers that have a CD-ROM or CD-RW drive in addition to a DVD-ROM drive, make sure that the
DVD disc is in the drive labeled “DVD”.
If these actions do not correct the problem, run the diagnostic programs (see “Lenovo Solution Center” on
page 53 for instructions). If you need technical assistance, see “Lenovo Support Web site” on page 32.
Intermittent problems
Symptom: A problem occurs only occasionally and is difficult to repeat.
Actions:
• Verify that all cables and cords are securely connected to the computer and attached devices.
• Verify that when the computer is on, the fan grill is not blocked (there is air flow around the grill), and the
fans are working. If airflow is blocked or the fans are not working, the computer might overheat.
If these actions do not correct the problem, run the diagnostic programs (see “Lenovo Solution Center” on
page 53 for instructions). If you need technical assistance, see “Lenovo Support Web site” on page 32.
Hard disk drive problems
Select your symptom from the following list:
•
“Some or all hard disk drives missing from the Setup Utility program” on page 41
•
“"No Operating System Found" message or the system not starting from the correct hard disk drive”
on page 42
Some or all hard disk drives missing from the Setup Utility program
Symptom: Some or all hard disk drives missing from the Setup Utility program
Actions:
• Ensure that all hard disk drive signal cables and power cables are connected correctly.
• Ensure that your computer is configured correctly to support the hard disk drives.
– If your computer is installed with five SATA hard disk drives, ensure that the SATA hard disk drive
enablement module (one to five hard disk drives) is installed.
– If your computer is installed with SAS hard disk drives, ensure that the SAS hard disk drive enablement
module (one to five hard disk drives) or the LSI MegaRAID SAS adapter is installed.
If these actions do not correct the problem, run the diagnostic program Lenovo Solution Center. See “Lenovo
Solution Center” on page 53. If you need technical assistance, see “Lenovo Support Web site” on page 32.
Chapter 5
.
Troubleshooting and diagnostics
41
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