16. If the memory problem persists, repeat step 12 through step 15 for each memory module installed.Next stepsIf the problem persists after all memory modules have been checked, see Getting Help.Troubleshooting an internal USB keyPrerequisitesCAUTION: Many repairs may only be done by a certified service technician. You should onlyperform troubleshooting and simple repairs as authorized in your product documentation, or asdirected by the online or telephone service and support team. Damage due to servicing that isnot authorized by Dell is not covered by your warranty. Read and follow the safety instructionsthat came with the product.Steps1. Enter System Setup and ensure that the USB key port is enabled on the Integrated Devices screen.2. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.3. Remove the system cover.4. Locate the USB key and reseat it.5. Install the system cover.6. Turn on the system and attached peripherals, and check if the USB key is functioning.7. If the problem is not resolved, repeat step 2 and step 3.8. Insert a known working USB key.9. Install the system cover.Next stepsIf the problem is not resolved, see Getting Help.Troubleshooting an SD cardPrerequisitesCAUTION: Many repairs may only be done by a certified service technician. You should onlyperform troubleshooting and simple repairs as authorized in your product documentation, or asdirected by the online or telephone service and support team. Damage due to servicing that isnot authorized by Dell is not covered by your warranty. Read and follow the safety instructionsthat came with the product.NOTE: Certain SD cards have a physical write-protect switch on the card. If the write-protect switchis turned on, the SD card is not writable.Steps1. Enter System Setup, and ensure that the Internal SD Card Port is enabled.2. Turn off the system, including any attached peripherals, and disconnect the system from theelectrical outlet.3. Remove the system cover.NOTE: When an SD card failure occurs, the internal dual SD module controller notifies thesystem. On the next restart, the system displays a message indicating the failure. If redundancyis enabled at the time of SD card failure, a critical alert will be logged and chassis health willdegrade.137
