35Solving Problemsnot be responding. Press the power button untilthe computer turns off and then turn it back on.If the problem persists, see the Dell TechnologyGuide on the Dell Support website at support.dell.com.If the power light is blinking white — Thecomputer is in standby mode. Press a key onthe keyboard, move the pointer using the touchpad or a connected mouse, or press the powerbutton to resume normal operation.If you encounter interference that hindersreception on your computer — An unwantedsignal is creating interference by interrupting orblocking other signals. Some possible causes ofinterference are:Power, keyboard, and mouse extension•cables.Too many devices connected to a power•strip.Multiple power strips connected to the same•electrical outlet.Memory ProblemsIf you receive an insufficient memorymessage—Save and close any open files and exit any•open programs you are not using to see ifthat resolves the problem.See the software documentation for•minimum memory requirements. Ifnecessary, install additional memory(See the Service Manual on the Dell Supportwebsite at support.dell.com).Reseat the memory modules (See the•Service Manual on the Dell Support websiteat support.dell.com) to ensure that yourcomputer is successfully communicatingwith the memory.If you experience other memory problems —Ensure that you are following the memory•installation guidelines (see the ServiceManual on the Dell Support website atsupport.dell.com).