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LED Indicators and Characteristics

Battery Charge and Status LED

Table 12. Battery Charge and Status LED Indicator

Power Source LED Behavior System Power State Battery Charge Level

AC Adapter Off S0 - S5 Fully Charged

AC Adapter Solid White S0 - S5 < Fully Charged

Battery Off S0 - S5 11-100%

Battery Solid Amber (590+/-3 nm) S0 - S5 < 10%

● S0 (ON) - System is turned on.

● S4 (Hibernate) - The system consumes the least power compared to all other sleep states. The system is almost at an OFF

state, expect for a trickle power. The context data is written to hard drive.

● S5 (OFF) - The system is in a shutdown state.

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 13. LED codes

Diagnostic 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

2,8 LCD power rail failure. Replace system board

3,1 Coin-cell battery failure

3,2 PCI, video card/chip failure

3,3 Recovery image not found

Troubleshooting 133

Dell J1FD8 User Manual

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