Dell P170G User Manual

System-diagnostic lights
This section lists the system-diagnostic lights of your Latitude 3550.
Table 50. System-diagnostic lights
Blinking pattern
Problem descriptionAmber White
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 failure
2 2 System board failure (included BIOS
corruption or ROM error)
2 3 No memory or RAM detected
2 4 Memory or RAM failure
2 5 Invalid memory installed
2 6 System board or Chipset Error
2 7 LCD failure (SBIOS message)
2 8 LCD failure (EC detection of power rail
failure)
3 1 CMOS battery failure
3 2 PCI or Video card or chip failure
3 3 BIOS Recovery image not found
3 4 BIOS Recovery image found but invalid
3 5 Power rail failure
3 6 Flash corruption is detected by SBIOS.
3 7 Timeout waiting on ME to reply to HECI
message.
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 Pre-boot 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.
Dell SupportAssist OS Recovery is a stand-alone tool that is preinstalled in all Dell computers that are installed with the 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.
Troubleshooting
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Dell P170G Specifications

General

Brand	Dell
Model	P170G
Category	Laptop
Language	English