Service Manual

8 Choose one of the following options:
– Just remove my les to do a quick format.
– Fully clean the drive to do a complete format.
9 Click Recover to start the recovery process.
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
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.
Running the ePSA Diagnostics
Invoke diagnostics boot by either of the methods that are suggested below:
1 Power on the computer.
2 As the computer boots, press the F12 key when the Dell logo is displayed.
3 In the boot menu screen, use Up/Down arrow key to select the Diagnostics option and then press Enter.
NOTE: The Enhanced Pre-boot System Assessment window displays, listing all devices detected in the
computer. The diagnostics starts running the tests on all the detected devices.
4 Press the arrow in the lower-right corner to go to the page listing.
The detected items are listed and tested.
5 To run a diagnostic test on a specic device, press Esc and click Yes to stop the diagnostic test.
6 Select the device from the left pane and click Run Tests.
7 If there are any issues, error codes are displayed.
Note the error code and contact Dell.
Diagnostics
Power and battery-status light: Indicates the power and battery-charge status.
Solid amber – Computer is running on battery and the battery has less than 10 percent charge.
User-dened color (AC mode) – Power adapter is connected and the battery is fully charged.
User-dened color (Battery mode) – Computer is running on battery and the battery has more than 10 percent charge.
User-dened color (Breathing, that is, slow decrease/increase in illumination) – Computer is in sleep state.
O – Computer is in hibernation, or turned o.
The power and battery-status light blinks red and blue along with beep codes indicating failures.
For example, the power and battery-status light blinks red two times followed by a pause, and then blinks blue three times
followed by a pause. This 2,3 pattern continues until the computer is turned o indicating no memory or RAM is detected.
The following table shows dierent light patterns and what they indicate.
85