Dell Precision T3400 Quick Reference Manual

Also see for T3400 - Precision - 2 GB RAM: Quick reference guide User guide Specification Quick reference guide User guide

Quick Reference Guide 51Keyboard ProblemsCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions in theProduct Information Guide.C H E C K T H E K E Y B O A R D C A B L E —• Ensure that the keyboard cable is firmly connected to the computer.• Shut down the computer (see "Turning Off Your Computer" in your User’s Guide),reconnect the keyboard cable as shown on the setup diagram for your computer, andthen restart the computer.• Ensure that the cable is not damaged or frayed and check cable connectors for bent orbroken pins. Straighten any bent pins.• Remove any keyboard extension cables and connect the keyboard directly to thecomputer.T E S T T H E K E Y B O A R D — Connect a properly working keyboard to the computer, thentry using the keyboard.R UN THE H ARDWARE TROUBLESHOOTER — See "Hardware Troubleshooter" on page 41.Lockups and Software ProblemsCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions in theProduct Information Guide.The computer does not start upC H E C K T H E D I A G N O S T I C L I G H T S — See "Diagnostic Lights" on page 33.E N S U R E T H A T T H E P O W E R C A B L E I S F I R M L Y C O N N E C T E D T O T H E C O M P U T E R A N D T OT H E E L E C T R I C A L O U T L E TThe computer stops respondingNOTICE: You may lose data if you are unable to perform an operating systemshutdown.T U R N T H E C O M P U T E R O F F — If you are unable to get a response by pressing a key onyour keyboard or moving your mouse, press and hold the power button for at least 8 to10 seconds (until the computer turns off), and then restart your computer.