Keyboard, Mouse, Or Pointing Device Problems - Lenovo ThinkStation 2551 Hardware Maintenance Manual

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.
"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. For computer
models 2551, 2552, 2553, 2554, and 2555, see "Replacing the primary hard disk drive" on page 106. For
computer models 3688, 3690, 3691, 3693, and 3695, see "Replacing the hard disk drive" on page 137.
• Ensure that the hard disk drive your computer starts from is listed as the first startup device in the Setup
Utility program. Refer to "Selecting a startup device" on page 58.
• If you are using RAID, ensure that you have configured the hard disk drives correctly. Refer to Chapter 7
"Configuring RAID" on page 61.
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. For computer models 2551, 2552, 2553, 2554, and
2555, see "Replacing the primary hard disk drive" on page 106. For computer models 3688, 3690, 3691,
3693, and 3695, see "Replacing the hard disk drive" on page 137.
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.

Keyboard, mouse, or pointing device problems

Select your symptom from the following list:
• "All or some keys on the keyboard do not work" on page 42
• "The mouse or pointing device does not work" on page 43
• "The pointer on the screen does not move smoothly with the mouse" on page 43
• "The wireless keyboard does not work" on page 43
All or some keys on the keyboard do not work
Symptom: All or some keys on the keyboard do not work.
Actions:
• Verify that the keyboard cable is securely connected to the correct connector on the computer.
• If you are using an Enhanced Performance USB keyboard and one or more of the Rapid Access buttons
are the only keys that are not working, these buttons might have been disabled or have not been assigned
to a function. Use the help system in the Enhanced Performance Customization Keyboard program to
help diagnose problems with the Rapid Access buttons.
To open the Enhanced Performance Customization Keyboard program, do one of the following:
– On the Windows 7 operating system, do the following:
1. Click Start ➙ Control Panel.
2. Click Hardware and Sound.
3. Click Devices and Printers.
4. Double-click USB Enhanced Performance Keyboard. The USB Enhanced Performance
Keyboard Customization program starts.
– On the Windows 8 operating system, do the following:
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ThinkStation Hardware Maintenance Manual