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Topics:
•
EC Diag LED Behavior
•
Dell Enhanced Pre-Boot System Assessment — ePSA Diagnostic 3.0
•
System error messages
•
Recovering the operating system
•
Real-Time Clock (RTC Reset)
•
Backup media and recovery options
•
Wi-Fi power cycle
EC Diag LED Behavior
EC Diag LED Behavior
The following table depicts the amber and white blinking patterns with possible troubleshooting resolution:
Table 2. LED Behavior
Blinking pattern
Problem Description
Amber
White
1
2
Unrecoverable SPI Flash Failure
2
1
CPU failure
2
2
System board failure (included BIOS corruption or ROM error)
2
3
No memory/ RAM detected
2
4
Memory/ RAM failure
2
5
Invalid memory installed
2
6
System board / Chipset Error / Clock failure / Gate A20
failure / Super I/O failure / Keyboard controller failure
Troubleshooting
Suggested Resolution
Run the Intel CPU diagnostics
tools
If problem persists, replace the
system board
Run the Intel CPU diagnostics
tools
If problem persists, replace the
system board
Flash latest BIOS version
Confirm that the memory module
is installed properly
If problem persists, replace the
memory module
Reset the memory module
Reset the memory module
If problem persists, replace the
memory module
Flash latest BIOS version
If problem persists, replace the
LCD module
Troubleshooting
4
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