Lenovo 0401R6U User Manual

Also see for 0401R6U: Specifications

Contents

diagnostic program runs independently of the Windows operating system. Use thePC-Doctor for DOS diagnostic program if you are unable to start the Windowsoperating system. You can run the PC-Doctor for DOS diagnostic program from adiagnostic disc that you created.Creating a diagnostic discThis section provides instructions on how to create a diagnostic disc.To create a diagnostic disc, do the following:1. Download a self-starting bootable disc image (known as an ISO image) of thediagnostic program from:http://www.lenovo.com/support2. Use any CD/DVD burning software to create a diagnostic disc with the ISOimage.Running the diagnostic program from the diagnostic discThis section provides instructions on how to run the diagnostic program from thediagnostic disc that you created.To run the diagnostic program from the diagnostic disc that you created, do thefollowing:1. Make sure that your computer is turned off.2. Repeatedly press and release the F12 key when turning on the computer. Whenthe Startup Device Menu opens, release the F12 key.3. Insert the diagnostic disc into the optical drive.4. Select the optical drive with the diagnostic disc as the startup device and pressEnter. The diagnostic program opens.5. Follow the instructions on the screen to run the desired diagnostic test. Foradditional help, press the F1 key.6. Remove the diagnostic disc from the optical drive after completing thediagnostic test.Cleaning the mouseThis section provides instructions on how to clean an optical or non-optical mouse.Optical mouseAn optical mouse uses a LED and an optical sensor to navigate the pointer. If thepointer on the screen does not move smoothly with the optical mouse, you mightneed to clean the mouse.To clean the optical mouse, do the following:1. Turn off your computer.2. Disconnect the mouse cable from the computer.3. Turn the mouse upside down to look at the lens.a. If there is a smudge on the lens, gently clean the area with a plaincotton-tipped swab.b. If there is debris in the lens, gently blow the debris away from the area.4. Check the surface on which you are using the mouse. If you have a veryintricate picture or pattern beneath the mouse, it may be difficult for the digitalsignal processor (DSP) to determine changes in the mouse position.5. Reconnect the mouse cable to the computer.30 User Guide