Chapter 5: Troubleshooting; Locate The Service Tag Or Express Service Code Of Your Dell Computer; System-Diagnostic Lights - Dell Inspiron 24 5415 Service Manual

Locate the Service Tag or Express Service Code of
your Dell computer
Your Dell computer is uniquely identified by a Service Tag or Express Service Code. To view relevant support resources for your
Dell computer, we recommend entering the Service Tag or Express Service Code at www.dell.com/support.
For more information on how to find the Service Tag for your computer, see

System-diagnostic lights

The power-status light indicates the power status of the computer. These are the power states:
Solid white—Computer is in S0 state. This is the normal power state of the computer.
Blinking white—Computer is in a low-power state, S3. This does not indicate a fault.
Solid amber—Computer is experiencing a boot failure, including the power-supply unit.
Blinking amber—Computer is experiencing a boot failure but the power-supply unit is functioning correctly.
Off—Computer is in sleep state, hibernation mode, or turned off.
The power-status light may also blink amber or white according to predefined "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
support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty.
Table 10. Diagnostic light codes
Diagnostic light codes
(Amber, White)
2,1
2,2
2,3
2,4
2,5
2,6
2,7
2,8
3,1
Problem description
CPU configuration or CPU failure
System board: BIOS or Read-Only Memory
(ROM) failure
No memory or Random-Access Memory (RAM)
detected
Memory or Random-Access Memory (RAM)
failure
Invalid memory installed
System board/Chipset Error/Clock failure/
Gate A20 failure/Super I/O failure/Keyboard
controller failure
Display failure - SBIOS message
Display failure - EC detection of power rail
failure
CMOS battery failure
Troubleshooting
Locate the Service Tag for your Dell
Troubleshooting
5
Laptop.
79