System Diagnostic Lights - Dell XPS 13 Service Manual

System diagnostic lights

Battery-status light
Indicates the power and battery-charge status.
Solid white — Power adapter is connected and the battery has more than 5 percent
charge.
Amber — Computer is running on battery and the battery has less than 5 percent
charge.
Off
• Power adapter is connected and the battery is fully charged.
• Computer is running on battery and the battery has more than 5 percent charge.
• Computer is in sleep state, hibernation, or turned off.
The power and battery-status light blinks amber along with beep codes indicating
failures.
For example, the power and battery-status light blinks amber two times followed by a
pause, and then blinks white three times followed by a pause. This 2,3 pattern
continues until the computer is turned off indicating no memory or RAM is detected.
The following table shows different power and battery-status light patterns and
associated problems.
Table 3. LED codes
Light pattern
2,1
2,2
2,3
2,4
2,5
2,6
2,7
3,1
3,2
Problem description
CPU failure
System board: BIOS and ROM failure
No memory or RAM detected
Memory or RAM failure
Invalid memory installed
System board or chipset error
LCD failure
CMOS battery failure
PCI or video card or chip failure
51