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Locate the Service Tag or Express Service Code of
your Dell computer
Your Dell computer is uniquely identified by a Service Tag or Express Service Code. To view relevant support resources for your
Dell computer, we recommend entering the Service Tag or Express Service Code at www.dell.com/support.
For more information on how to find the Service Tag for your computer, see
Diagnostics
Power status light: Indicates the power status.
The following table shows the power LED states:
Table 20. Power LED status
Power LED state
Off
Solid Amber
Blinking Amber
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 off indicating No memory/RAM detected.
The following table shows different light patterns and what they indicate:
Table 21. System diagnostic lights
Light pattern
1,1
1,2
1,5
1,6
2,1
2,2
2,3
2,4
2,5
2,6
Problem description
TPM Detection failure
Unrecoverable SPI flash failure
Failure EC unable to program i-Fuse
Failure Generic catch-all for ungraceful EC code flow
errors
CPU failure
System board failure, corrupt BIOS, ROM error
No memory/RAM detected
Memory or RAM failure
Invalid memory installed
System board error, chipset error, clock failure, gate
A20 failure, keyboard controller failure
Troubleshooting
Locate the Service Tag for your Dell
Description
Computer is in hibernation or turned off.
The computer is unable to boot to the operating system.
This indicates that the power supply or another device in the
computer is failing.
The computer is unable to boot to the operating system. This
indicates that the power supply is normal but another device
in the computer is failing or not installed properly.
5
Laptop.
Troubleshooting
81
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