Dell OptiPlex 5260 - Understanding Diagnostic Codes

Diagnostics
Power status light: Indicates the power status.
Solid Amber – The system is unable to boot to the operating system. This indicates that the power supply or another device in the system
is failing.
Blinking Amber – The system is unable to boot to the operating system. This indicates that the power supply is normal but another device
in the system is failing or not installed properly.
NOTE: To determine the device that is failing, see the light patterns .
O – System is in hibernation or turned o.
The power status light blinks amber along with beep codes indicating failures.
For example, the power 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 o indicating the Recovery image is not found.
The following table shows dierent light patterns and what they indicate:
Table 4. Diagnostic LED/Beep codes
LED # of Flashes Problem description Faults
2,1 Faulty system board Faulty system board
2,2 Faulty system board, power supply unit
(PSU), or cabling
Faulty system board, power supply unit (PSU), or cabling
2,3 Faulty system board, CPU, or DIMMS Faulty system board, power supply unit (PSU), or DIMMS
2,4 Faulty coin cell battery Faulty coin cell battery
2,5 BIOS Recovery AutoRecovery trigger, recovery image is not found or is
invalid
2,6 CPU CPU Error
2,7 Memory Memory SPD failure
3,3 Memory No memory detected
3,5 Memory Modules incompatible or invalid conguration
3,6 BIOS Recovery On-demand trigger, recovery image is not found
3,7 BIOS Recovery On-demand trigger, recovery image is invalid
The system may emit a series of beeps during start-up if the errors or problems cannot be displayed. The repetitive beep codes help the
user troubleshoot problems with the system.
Camera status indicator
Camera status light: Indicates whether the camera is in use.
• Solid white – Camera is in use.
• O – Camera is not in use.
LCD built in self test - BIST
All-in-One (AIO) systems supports LCD BIST similar to any other Dell systems that have BIST test implemented. It allows the user to isolate
the LCD during troubleshooting to determine which sub-system is at fault. The main dierence is the lack of an integrated keyboard scan
Troubleshooting your computer
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