Dell Precision M4300 User Manual

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Contents

Dell Precision M4300 User Manual Manual pdf 89 page image

Troubleshooting 87C H E C K T H E M O U S E C A B L E — Shut down the computer. Disconnect the mouse cable, check it for damage, andfirmly reconnect the cable.If you are using a mouse extension cable, disconnect it and connect the mouse directly to the computer.T O V E R I F Y T H A T T H E P R O B L E M I S W I T H T H E M O U S E , C H E C K T H E T O U C H P A D —1 Shut down the computer.2 Disconnect the mouse.3 Turn on the computer.4 At the Windows desktop, use the touch pad to move the cursor around, select an icon, and open it.If the touch pad operates correctly, the mouse may be defective.C H E C K T H E S YS T E M S E T U P P R O G R A M S E T T I N G S — Verify that the system setup program lists the correct devicefor the pointing device option. (The computer automatically recognizes a USB mouse without making any settingadjustments.) For more information on using the system setup program, see "System Setup Program" on page 89.T E S T T H E M O U S E C O N T R O L L E R — To test the mouse controller (which affects pointer movement) and theoperation of the touch pad or mouse buttons, run the Mouse test in the Pointing Devices test group in the DellDiagnostics (see "Dell Diagnostics" on page 69).R E I N S T A L L T H E T O U C H P A D D R I V E R — See "Reinstalling Drivers and Utilities" on page 96.Video and Display ProblemsFill out the Diagnostics Checklist (see "Diagnostics Checklist" on page 139) as you complete thesechecks.CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in theProductInformation Guide.If the display is blankNOTE: If you are using a program that requires a higher resolution than your computer supports, it isrecommended that you attach an external monitor to your computer.C H E C K T H E B A T T E R Y — If you are using a battery to power your computer, the battery charge may be depleted.Connect the computer to an electrical outlet using the AC adapter, and turn on the computer.T E S T T H E E L E C T R I C A L O U T L E T — Ensure that the electrical outlet is working by testing it with another device, suchas a lamp.C H E C K T H E AC A D A P T E R — Check the AC adapter cable connections. If the AC adapter has a light, ensure thatthe light is on.C O N N E C T T H E C O M P U T E R D I R E C T L Y T O A N E L E C T R I C A L O U T L E T — Bypass power protection devices, power strips,and the extension cable to verify that the computer turns on.A D J U S T T H E P O W E R P R O P E R T I E S — Search for the keyword standby in the Windows Help and Support Center.Click Start or → Help and Support.S W I T C H T H E V I D E O I M A G E — If your computer is attached to an external monitor, press to switchthe video image to the display.