Dell Latitude 3390 2-in-1 - Integrated NIC; VGA; Enhanced Pre-Boot System Assessment - ePSA Diagnostics; System Diagnostic Lights

Issue Suggested Troubleshooting Steps
Integrated NIC If the system is not able to identify any network after connecting the network cable to the network port,
try the following troubleshooting steps:
1 Make sure that the network driver has been installed and is working properly.
2 Check that the network LEDs are responding.
3 Check System Setup to make sure that the NIC is enabled.
4 Try reseating the cable.
5 Try a known good cable, if one is available.
6 If a known good system is available, check if that system is connecting to the network.
7 Run the ePSA diagnostics on the network port.
NOTE: If the integrated network hardware solution is defective or nonfunctional, replace the
system board.
VGA No additional drivers or updates are needed for VGA functionality. When troubleshooting an external
monitor, keep these tips in mind:
• Check both ends of the cable for a snug connection into the laptop and into the external monitor.
• Adjust the contrast and brightness controls on the external monitor.
• Make sure that the notebook is not set to internal display only.
• Swap with a known good cable.
• Try with a known good external monitor. Check the external device's documentation for any additional
steps required for functionality.
NOTE: If the VGA hardware port is defective or nonfunctional, replace the system board.
Topics:
• Enhanced Pre-Boot System Assessment — ePSA diagnostics
• System diagnostic lights
Enhanced Pre-Boot System Assessment — ePSA
diagnostics
The ePSA diagnostics (also known as system diagnostics) performs a complete check of your hardware. The ePSA is embedded with the
BIOS and is launched by the BIOS internally. The embedded system diagnostics provides a set of options for particular devices 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 extra information about the failed device(s)
• View status messages that inform you if tests are completed successfully
• View error messages that inform you of problems encountered during testing
CAUTION
: Use the system diagnostics to test only your computer. Using this program with other computers may cause invalid
results or error messages.
NOTE: Some tests for specic devices require user interaction. Always ensure that you are present at the computer terminal
when the diagnostic tests are performed.
System diagnostic lights
Power and battery-status light/ hard-drive activity light: Indicates the battery-charge status or the hard-drive activity.
Troubleshooting
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