Troubleshooting
Real-Time Clock (RTC Reset)
The Real Time Clock (RTC) reset function allows you or the service technician to recover Dell Inspiron, systems from No POST/No
Power/No Boot situations. The legacy jumper enabled RTC reset has been retired on these models.
Start the RTC reset with the system powered off and connected to AC power. Press and hold the power button for thirty (30) seconds.
The system RTC Reset occurs after you release the power button.
System diagnostic lights
Power-supply diagnostics light
Indicates the power-supply state.
Hard-drive activity light
Turns on when the computer reads from or writes to the hard drive.
Table 15. LED codes
Diagnostic light codes
Problem description
1,2
Unrecoverable SPI flash failure
2,1
CPU failure
2,2
System board failure, corrupt BIOS, ROM error
2,3
No memory/RAM detected
2,4
Memory/RAM failure
2,5
Invalid Memory installed
2,6
System board error, chipset error, clock failure, gate A20 failure, super I/O failure,
keyboard controller failure
3,1
CMOS battery failure
3,2
PCIe or video card/chip failure
3,3
Recovery Image not found
3,4
Recovery Image found but invalid
3,5
Power Rail Failure
3,6
Paid SPI volume error
3,7
Intel ME (Management Engine) error
4,2
CPU power cable connection issue
5
56
Troubleshooting