Dell Inspiron 3520, Руководство пользователя

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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. If you wish to run a diagnostic test on a specific device, press Esc and click Yes to stop the diagnostic test.
5. Select the device from the left pane and click Run Tests
6. If there are any issues, error codes are displayed.
Note the error code and contact Dell.
Device status lights
Table 16. Device status lights
Icon Name Description
Power
status light
Turns on when you turn on the computer and blinks when the computer is in a power management
mode.
Battery
charge
indicator Turns on steadily or blinks to indicate battery charge status.
The device status LEDs are usually located either on the top or left side of the keyboard. They display the storage, battery and
wireless devices connectivity and activity. Apart from that they can be useful as a diagnostic tool when there's a possible failure
to the system.
NOTE: The position of the power status light may vary depending on the system.
The following table lists how to read the LED codes when possible errors occur.
Table 17. Battery charge LED indicator
Amber blinking pattern Problem description Suggested resolution
2,1 CPU CPU failure
2,2 System board: BIOS ROM System board, covers BIOS corruption or ROM error
2,3 Memory No memory/RAM detected
2,4 Memory Memory/RAM failure
2,5 Memory Invalid memory installed
2,6 System board: Chipset System board/Chipset error
2,7 LCD Replace the system board
3,1 RTC Power Failure CMOS battery failure
3,2 PCI/Video PCI or video card/chip failure
3,3 BIOS Recovery 1 Recovery image not found
3,4 BIOS Recovery 2 Recovery image found but invalid
The blinking patterns will consist of 2 set of numbers being represented by (First Group: Amber blinks, Second Group: White
blinks)
NOTE:
1. First Group: The LED blinks 1 to 9 times followed by a brief pause with LED off at the interval of 1.5 seconds.(This is in
Amber color)
2. Second Group: The LED blinks 1 to 9 times, that would be then followed by a longer pause before the next cycle starts
again at the interval of 1.5 seconds.(This is in White color)
For Example: No Memory detected (2,3), Battery LED blinks two times of amber color followed by a pause, and then blinks
three times of white color. The Battery LED will pause for 3 seconds before the next cycle repeat itself again.
102 Diagnostics