70Internal USB keyThe blade provides an internal USB connector for a USB flash memory key.The USB memory keycan beused as aboot device,security key, or mass storage device. Touse the internal USB connector, the Internal USB Port option must be enabled in theIntegrated Devices screen of the System Setup.Toboot from the USB memory key, you must configure the USB memory key with a boot image, and then specify the USB memorykey in the boot sequence in the System Setup. For information on creating a bootable file on the USB memory key, see the userdocumentation that accompanied the USB memory key.Replacing the internal USB keyPrerequisitesCAUTION: Many repairs may only be done by a certified service technician. Youshould only perform troubleshooting andsimple repairs as authorized in your product documentation, or as directed by the online or telephone service and supportteam. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safetyinstructionsthatcamewiththeproduct.CAUTION: Toavoidinterferencewithothercomponentsintheblade, themaximumpermissibledimensionsofthe USBkey are 15.9 mm wide x 57.15 mm long x 7.9 mm high.1. Follow the safety guidelines listed in safety instructions section.2. Followthe procedure listed in the Beforeworking inside yoursystem section.Steps1. Locate the USB connector/USB key.2. If installed, remove the USB key.3. Insert the new USB memory key into the USB connector.Figure 23. Replacing the USB memory key1. USB memorykey 2. USB memory key connector