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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 89
• ““No Operating System Found” message or the system not starting from the correct hard disk drive”
on page 89
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. See “Installing or
replacing a hard disk drive” on page 40
.
• If your computer is installed with SAS hard disk drives, ensure that the SAS hard disk drive enablement
module (one to three hard disk drives) or the LSI MegaRAID SAS adapter is installed.
If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technical
assistance, see Chapter 12 “Getting information, help, and service” on page 101.
“No Operating System Found” message or the system not starting from the correct
hard disk drive
Symptom: “No Operating System Found” message or the system not starting from the correct hard disk drive
Actions:
• Ensure that all hard disk drive signal cables and power cables are connected correctly. See “Installing or
replacing a hard disk drive” on page 40
.
• Ensure that the hard disk drive your computer starts from is listed as the startup device in the Setup Utility
program. See “Selecting a startup device” on page 67.
• If you are using RAID, ensure that you have congured the drives correctly. See Chapter 8 “Conguring
RAID” on page 71.
Note: In rare cases, the hard disk drive with the operating system might get corrupted or damaged. In such
cases, you might need to replace the hard disk drive. See “Installing or replacing a hard disk drive” on page
40. Additionally, you might need to recover the data on the hard disk drive, or restore the hard disk drive to
the factory default state. See “Using the Rescue and Recovery workspace” on page 59 for more information.
If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technical
assistance, see Chapter 12 “Getting information, help, and service” on page 101.
Intermittent problems
Symptom: A problem occurs only occasionally and is difcult 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 ow around the grill), and the
fans are working. If airow 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.)
Chapter 11. Troubleshooting and diagnostics 89