58 Solving ProblemsKeyboard ProblemsCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions in the Product Information Guide.Lockups and Software ProblemsCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions in the Product Information Guide.The computer does not start upC 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" on page 98),reconnect the keyboard cable as shown on the setup diagram for your computer,and then restart the computer.• Check the cable connector for bent or broken pins and for damaged or frayedcables. Straighten bent pins.• Remove keyboard extension cables and connect the keyboard directly to the computer.TE S T T H E K E Y B O A R D — Connect a properly working keyboard to the computer,and try using the keyboard.EN S U R E T H A T T H E US B P O R T S A R E E N A B L E D I N T H E S YS T E M S E T U PP R O G R A M — See "System Setup" on page 172.R U N T H E HA R D W A R E TR O U B L E S H O O T E R — See "Resolving Software andHardware Incompatibilities" on page 87.EN 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 DT O T H E E L E C T R I C A L O U T L E T
