Intermittent Problems; Hard Disk Drive Problems - Lenovo ThinkCentre M73 10B0 Hardware Maintenance Manual

• Ensure that video resolution is set to less than 1152 x 864.
If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technical
assistance, see "Lenovo Support Web site" on page 34.
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, ensure that the
DVD disc is in the drive labeled "DVD".
If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technical
assistance, see "Lenovo Support Web site" on page 34.

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 SCSI devices are installed, verify that the last external device in each SCSI chain is terminated correctly.
(See your SCSI documentation.)
If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technical
assistance, see "Lenovo Support Web site" on page 34.

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 43
• ""No Operating System Found" message or the system not starting from the correct hard disk drive"
on page 44
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.
.
Chapter 5 Troubleshooting and diagnostics
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