If the memory settings match the installed memory but the problem still persists, go to step 12.
5.Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
6.Remove the system cover.
7.Check the memory channels and ensure that they are populated correctly.
NOTE: See the system event log or system messages for the location of the failed memory module. Reinstall the memory device.
8.Reseat the memory modules in their sockets.
9.Install the system.
10.Enter System Setup and check the system memory setting. If the problem is not resolved, proceed with the next step.
11.Remove the system cover.
12.If a diagnostic test or error message indicates a specific memory module as faulty, swap or replace the module with a known good memory module.
13.To troubleshoot an unspecified faulty memory module, replace the memory module in the first DIMM socket with a module of the same type and capacity.
If an error message is displayed on the screen, this may indicate a problem with the installed DIMM type(s), incorrect DIMM installation, or defective DIMM(s). Follow the
14.Install the system cover.
15.As the system boots, observe any error message that is displayed and the diagnostic indicators on the front of the system.
16.If the memory problem persists, repeat step 12 through step 15 for each memory module installed.
Next steps
If the problem persists after all memory modules have been checked, see Getting Help.
Troubleshooting an internal USB key
Prerequisites
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.
Steps
1.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 different USB key that you know works properly.
9.Install the system cover.
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