Indicates the power state and battery state of the computer.
Solid white – Power adapter is connected and the battery is charging.
Solid amber – Battery charge is low or critical.
Off – Battery is fully charged.
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 light patterns
and what they indicate.
Table 1. DiagnosticsThe following table provides the different light
patterns and what they indicate.
Diagostic light codes
Problem description
2,1
Processor failure
2,2
System board: BIOS or ROM (Read-Only Memory) failure
2,3
No memory or RAM (Random-Access Memory) detected
2,4
Memory or RAM (Random-Access Memory) failure
2,5
Invalid memory installed
2,6
System-board or chipset error
2,7
Display failure
3,1
Coin-cell battery failure
3,2
PCI, video card/chip failure
3,3
Recovery image not found
3,4
Recovery image found but invalid
3,5
Power-rail failure
3,6
System BIOS Flash incomplete
3,7
Management Engine (ME) error
Camera status light: Indicates whether the camera
is in use.
Solid white – Camera is in use.
Off – Camera is not in use.
Caps Lock status light: Indicates whether Caps
Lock is enabled or disabled.
Solid white – Caps Lock enabled.
Off – Caps Lock disabled.
Data is not available for the Topic
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