Inspiron 14 7440 2-in-1 Owner's Manual
System-diagnostic lights
This section lists the system-diagnostic lights of your Inspiron 14 7440 2-in-1.
Power and battery-status light
The power and battery status light indicates the power and battery status of the computer. These are the power states:
Solid white: Power adapter is connected and the battery has more than 5% charge.
Amber: Computer is running on battery and the battery has less than 5% charge.
Off:
- Power adapter is connected, and the battery is fully charged.
- Computer is running on battery, and the battery has more than 5% charge.
- Computer is in sleep state, hibernation, or turned off.
The power and battery-status light may blink amber or white according to pre-defined "beep codes" indicating various 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.
NOTE:The following diagnostic light codes and recommended solutions are intended for Dell service technicians to troubleshoot problems. You should only perform troubleshooting and repairs as authorized or directed by the Dell technical assistance team. Damage due to servicing that is not authorized by Dell is not covered by your warranty.
| Blinking pattern | Problem description | |
|---|---|---|
| Amber | White | |
| 1 | 1 | TPM detection failure |
| 1 | 2 | Unrecoverable SPI Flash Failure |
| 1 | 3 | Short in hinge cable tripped OCP1 |
| 1 | 4 | Short in hinge cable tripped OCP2 |
| 1 | 5 | EC unable to program i-Fuse |
| 1 | 6 | Generic catch-all for ungraceful EC code flow errors |
| 2 | 1 | CPU 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 - SBIOS message |
| 2 | 8 | Display failure - EC detection of power rail failure |
| 3 | 1 | CMOS battery failure |
| 3 | 2 | PCI, video card/chip failure |
| 3 | 3 | BIOS Recovery image not found |
| 3 | 4 | BIOS Recovery image found but invalid |
| 3 | 5 | Power-rail failure |
| 3 | 6 | System BIOS Flash incomplete |
| 3 | 7 | Management Engine (ME) error |
| 6 | 1 | The power adapter is not detected, and the battery-charge level is at 2% or less |
| 6 | 2 | The Dell power adapter is underpowered and unable to turn on the computer |
| 6 | 3 | The non-Dell power adapter is underpowered and is unable to turn on the computer |
NOTE:Blinking 3-3-3 LEDs on Lock LED (Caps-Lock or Num-Lock), Power button LED (without Fingerprint reader), and Diagnostic LED indicates failure to provide input during LCD panel test on Dell SupportAssist Pre-boot System Performance Check diagnostics.
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 the Caps Lock is enabled or disabled.
- Solid white—Caps Lock enabled.
- Off—Caps Lock disabled.
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