20Reconnect the system to its electrical outlet, and turn on the system and attached peripherals.
21As the system boots, observe any error message that appears and the diagnostic indicators on the front of the system.
22If the memory problem is still indicated, repeat step 15 through step 21 for each memory module installed.
If the problem persists after all memory modules have been checked, see "Getting Help" on page 157.
Troubleshooting an Internal USB Key
CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.
1Enter the System Setup program and ensure that the SD card port is enabled. See "Integrated Devices Screen" on page 58.
2Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
3Open the system. See "Opening the System" on page 79
4Locate the USB key and reseat it. See "Chassis Intrusion Switch" on page 118.
5Close the system. See "Closing the System" on page 80.
6Turn on the system and attached peripherals and check if the USB key is functioning.
7If the problem is not resolved, repeat step 2 and step 3.
8Insert a different USB key that you know works properly.
9Close the system. See "Closing the System" on page 80.
Troubleshooting Your System
