Dell XPS 13 Service Manual

Also see for XPS 13: Setup and specifications Service manual Service manual Owner's manual Quick start guide

Contents

8 The BIOS Update Utility appears. Follow the instructions on the screen tocomplete the BIOS update.Fixing a no-boot issue caused by USB-bootsupportSometimes the computer does not boot to the operating system when USB devicesare connected to the computer during startup. This behavior occurs because thecomputer is looking for bootable files in connected USB devices.Either disconnect USB devices before booting or follow these steps to fix the no-bootissue.1 Turn on or restart your computer.2 Press F2 when the Dell logo is displayed on the screen to enter the BIOS setupprogram.The BIOS setup program is displayed.3 On the left pane, select Settings → System Configuration → USBConfiguration.The USB configuration is displayed on the right pane.4 Clear the Enable Boot Support check box to disable it.5 Save the settings and exit.Enhanced Pre-Boot System Assessment(ePSA) diagnosticsCAUTION: Use the ePSA diagnostics to test only your computer. Using thisprogram with other computers may cause invalid results or error messages.The ePSA diagnostics (also known as system diagnostics) performs a complete checkof your hardware. The ePSA is embedded with the BIOS and is launched by the BIOSinternally. The embedded system diagnostics provides a set of options for particulardevices or device groups allowing you to:• Run tests automatically or in an interactive mode• Repeat tests• Display or save test results• Run thorough tests to introduce additional test options to provide extrainformation about the failed device(s)83