System-diagnostic lights
This section lists the system-diagnostic lights of your Dell Pro Rugged 13 RA13250.
The Service LED is used for system diagnostics, and it emits amber or green light. A Dell service representative uses the LED
light patterns to troubleshoot your device.
The following table shows different Service LED light patterns and associated problems.
Table 67. System-diagnostic lights
Blinking pattern
Problem descriptionAmber Green
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 EC internal failure
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 module 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 of 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 corruption.
3 7 Management Engine (ME) error
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 Preboot System Performance
Check diagnostics.
Recovering the operating system
When your computer is unable to boot to the operating system even after repeated attempts, it automatically starts Dell
SupportAssist OS Recovery.
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Troubleshooting