Dell XPS 15 9570 XPS 15 Service Manual - Page 91

Enhanced Pre-Boot System Assessment (ePSA) diagnostics, Running the ePSA Diagnostics

Get Dell XPS 15 9570 PDF manuals and user guides View all Dell XPS 15 9570 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 91 highlights

Either disconnect USB devices before booting or follow these steps to fix the no-boot issue. 1 Turn on or restart your computer. 2 Press F2 when the Dell logo is displayed on the screen to enter the BIOS setup program. NOTE: The F2 prompt indicates that the keyboard is initialized. This prompt can appear very quickly, so you must watch for it, and then press F2. If you press F2 before the F2 prompt, this keystroke is lost. If you wait too long and the operating system logo appears, continue to wait until you see the desktop. Then, turn off your computer and try again. The BIOS setup program is displayed. 3 On the left pane, select Settings > System Configuration > USB Configuration. The USB configuration is displayed on the right pane. 4 Clear the Enable Boot Support check box to disable it. 5 Save the settings and exit. 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 specific devices require user interaction. Always ensure that you are present at the computer terminal when the diagnostic tests are performed. For more information, see Dell EPSA Diagnostic 3.0. 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 specific 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. or 8 Shut down the computer. 9 Press and hold the Fn key, while pressing the power button, and then release both. Troubleshooting 91

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
Either disconnect USB devices before booting or follow these steps to
fix
the no-boot issue.
1
Turn on or restart your computer.
2
Press F2 when the Dell logo is displayed on the screen to enter the BIOS setup program.
NOTE:
The F2 prompt indicates that the keyboard is initialized. This prompt can appear very quickly, so you must watch
for it, and then press F2. If you press F2 before the F2 prompt, this keystroke is lost. If you wait too long and the
operating system logo appears, continue to wait until you see the desktop. Then, turn
off
your computer and try again.
The BIOS setup program is displayed.
3
On the left pane, select
Settings
>
System
Configuration
>
USB
Configuration
.
The USB
configuration
is displayed on the right pane.
4
Clear the
Enable Boot Support
check box to disable it.
5
Save the settings and exit.
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
specific
devices require user interaction. Always ensure that you are present at the computer terminal
when the diagnostic tests are performed.
For more information, see
Dell EPSA Diagnostic 3.0
.
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
specific
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.
or
8
Shut down the computer.
9
Press and hold the Fn key, while pressing the power button, and then release both.
Troubleshooting
91