Dell Precision 7730, Руководство по обслуживанию

Страница: 105 / 106

NOTE: The diagnostic pattern will consist of a two digit number being represented by a first group of LED blinks (1 through 9) in
amber, followed by a 1.5 second pause with the LED off, and then a second group of LED blinks (1 through 9) in white. This is
then followed by a three second pause, with the LED off, before repeating over again. Each LED blink takes 0.5 seconds.
The system will not shutdown when displaying the Diagnostic Error Codes. Diagnostic Error Codes will always supersede any other use of
the LED. For instance, on Notebooks, battery codes for Low Battery or Battery Failure situations will not be displayed when Diagnostic
Error Codes are being displayed:
Table 3. LED pattern
Blinking pattern Problem Description Suggested Resolution
Amber White
2 1 processor processor failure
2 2 system board, BIOS ROM system board, covers BIOS corruption or ROM error
2 3 memory no memory/no RAM detected
2 4 memory memory failure/RAM failure
2 5 memory invalid memory installed
2 6 system board; chipset system board/ chipset error
2 7 display display failure
3 1 RTC power failure coin-cell battery failure
3 2 PCI/Video PCI/Video card/chip failure
3 3 BIOS recovery 1 recovery image nor found
3 4 BIOS recovery 2 recovery image found but invalid
Battery status lights
If the computer is connected to an electrical outlet, the battery light operates as follows:
Alternately blinking
amber light and
white light An unauthenticated or unsupported non-Dell AC adapter is attached to your laptop. Re-plug battery connector,
replace battery if the issue reoccurs.
Alternately blinking
amber light with
steady white light Temporary battery failure with AC adapter present. Re-plug battery connector, replace battery if the issue
reoccurs.
Constantly blinking
amber light Fatal battery failure with AC adapter present. Fetal battery, replace the battery.
Light off Battery in full charge mode with AC adapter present.
White light on Battery in charge mode with AC adapter present.
Troubleshooting 105