Dell Latitude 5285 2-in-1 Manuel du propriétaire - Page 34
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Enhanced Pre-boot System Assessment (ePSA)
The ePSA is a diagnostic utility available on the tablet. This utility includes a series of tests for a tablet's hardware. Customers can run these
tests even if the computer lacks any media (hard drive, CD drive, etc.). If an ePSA-tested component fails, the system displays an error
code and generates a beep code.
Features:
•
Graphical User Interface.
•
Automatic Default Operation- runs test on all devices, allowing a user to interrupt and select any device.
•
Checks the Master Boot Record for readiness to boot into a full OS environment.
•
Tablet panel test.
•
Video card.
•
Battery test.
•
Charger test.
•
Primary battery.
•
Multiprocessor cache test.
Running the ePSA Diagnostic Utility
NOTE:
The following steps can be used to run the ePSA diagnostic utility in DOS mode without using an external keyboard.
1
Power on the system.
2
Before the Dell Logo is displayed, immediately press the Volume Up button to get the Boot Menu
3
Scroll down the Diagnostics and then press the Volume Down button to select
4
The tablet will begin running the ePSA utility.
Tablet LED
This section details the diagnostic features of the battery LED in a tablet.
Diagnostic LED
Tablets rely on the Battery LED light blinking amber/white pattern to determine failures listed in the following table:
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Troubleshooting
Troubleshooting
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