Dell Latitude PP30L Setup And Quick Reference Manual

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Troubleshooting 45• Ensure that any power strips being used are plugged into an electricaloutlet and are turned on.• Ensure that the electrical outlet is working by testing it with anotherdevice, such as a lamp.• Ensure that the main power cable and front panel cable are securelyconnected to the system board (see your Service Manual atsupport.dell.com).IF T H E P O W E R L I G H T I S B L U E A N D T H E C O M P U T E R I S N O T R E S P O N D I N G —• Ensure that the display is connected and powered on.• If the display is connected and powered on, see "Beep Codes" on page 34.IF T H E P O W E R L I G H T I S B L I N K I N G B L U E — The computer is in standby mode.Press a key on the keyboard, move the mouse, or press the power button toresume normal operation.IF T H E P O W E R L I G H T I S B L I N K I N G A M B E R — The computer is receivingelectrical power, a device might be malfunctioning or incorrectly installed.• Remove and then reinstall all memory modules (see your Service Manualat support.dell.com).• Remove and then reinstall any expansion cards, including graphics cards(see your Service Manual at support.dell.com).IF T H E P O W E R L I G H T I S S T E A D Y A M B E R — There is a power problem, a devicemay be malfunctioning or incorrectly installed.• Ensure that the processor power cable is securely connected to the systemboard power connector (see your Service Manual at support.dell.com).• Ensure that the main power cable and the front panel cable are securelyconnected to the system board connector (see your Service Manual atsupport.dell.com).EL I M I N A T E I N T E R F E R E N C E — Some possible causes of interference are:• Power, keyboard, and mouse extension cables• Too many devices connected to the same power strip• Multiple power strips connected to the same electrical outlet