Symptom | Action |
|
|
The Enhanced Performance USB | Verify that: |
Keyboard does not work. | v The computer is turned on. |
| v The keyboard is securely connected to a USB connector on the front or rear of |
| the computer. |
| v No keys are stuck. |
| If you cannot correct the problem, have the computer serviced. Refer to the |
| warranty and safety information that is provided with your computer for a list of |
| service and support telephone numbers. |
|
|
The mouse does not work. The | Verify that: |
computer does not respond to | v The computer is turned on. |
the mouse. | v The mouse is securely connected to a USB connector on the front or rear of the |
| |
| computer. |
| v The mouse is clean. Refer to “Cleaning the mouse” on page 58 for further |
| information. |
| If you cannot correct the problem, have the computer serviced. Refer to the |
| warranty and safety information that is provided with your computer for a list of |
| service and support telephone numbers. |
|
|
The operating system will not | Verify that: |
start. | v There is no diskette in the diskette drive. |
| v The startup sequence includes the device where the operating system resides. |
| Usually, the operating system is on the hard disk. See “Selecting a startup |
| device” on page 50 for more information. |
| If you cannot correct the problem, have the computer serviced. Refer to the |
| warranty and safety information that is provided with your computer for a list of |
| service and support telephone numbers. |
|
|
The computer beeps multiple | Verify that no keys are stuck down. |
times before the operating | If you cannot correct the problem, have the computer serviced. Refer to the |
system starts. | |
| warranty and safety information that is provided with your computer for a list of |
| service and support telephone numbers. |
|
|
Diagnostic programs
Diagnostic programs are used to test hardware components of your computer and report
Notes:
1.You can download the latest version of the diagnostic programs from http://www.lenovo.com/support/. Type your machine type into the Use Quick Path field and click Go to find the downloadable files that are specific to your computer.
2.If you are unable to isolate and repair the problem yourself after you run
56User Guide