30Solving ProblemsIf the power light is solid white and the computeris not responding — The display may not beresponding. Press the power button until thecomputer turns off and then turn it back on. If theproblem persists, see the Dell Technology Guideon 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 outletMemory ProblemsIf you experience memory problems —Check if the memory module is compatible•with your Studio XPS. Your Studio XPSsupports DDR3 memory. For more informationabout the type of memory supported by yourStudio XPS, see “Basic Specifications” onpage 52.Run the Dell Diagnostics (see “Dell•Diagnostics” on page 36).Reseat the memory modules (see the• ServiceManual on the Dell Support website atsupport.dell.com) to ensure that your StudioXPS is successfully communicating with thememory.