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 25. Diagnostic light codesî
Diagnostic light codes
(Amber, White)
Problem description
1,1 TPM Detection Failure
1,2 Unrecoverable SPI Flash Failure
1,5 EC unable to program i-Fuse
1,6 Generic catch-all for ungraceful EC code flow
errors
1,7 Non-RPMC Flash on Boot Guard fused system
2,1 CPU configuration or CPU failure
2,2 System board: BIOS or Read-Only Memory
(ROM) failure
2,3 No memory or Random-Access Memory (RAM)
detected
2,4 Memory or Random-Access Memory (RAM)
failure
2,5 Invalid memory installed
2,6 System board/Chipset Error
3,1 CMOS battery failure
3,2 PCI of Video card/chip failure
3,3 BIOS Recovery 1: BIOS recovery image not found
3,4 BIOS Recovery 2: Recovery image found but
invalid
3,5 Power Rail Failure: EC ran into power sequencing
failure
3,6 Flash corruption detected by SBIOS
4,1 Memory DIMM power rail failure
4,2 CPU Power cable connection issue
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.
Dell SupportAssist OS Recovery is a standalone tool that is preinstalled in all Dell computers installed with Windows operating
system. It consists of tools to diagnose and troubleshoot issues that may occur before your computer boots to the operating system. It
enables you to diagnose hardware issues, repair your computer, back up your files, or restore your computer to its factory state.
You can also download it from the Dell Support website to troubleshoot and fix your computer when it fails to boot into their primary
operating system due to software or hardware failures.
For more information about the Dell SupportAssist OS Recovery, see Dell SupportAssist OS Recovery User's Guide at www.dell.com/
serviceabilitytools. Click SupportAssist and then, click SupportAssist OS Recovery.
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