Dell Inspiron 27 7710 All-in-One Service Manual - Page 81

Troubleshooting, Locate the Service Tag or Express Service Code of your Dell computer, Diagnostics

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5 Troubleshooting 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 Locate the Service Tag for your Dell Laptop. 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 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. 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 Problem description 1,1 TPM Detection failure 1,2 Unrecoverable SPI flash failure 1,5 Failure EC unable to program i-Fuse 1,6 Failure Generic catch-all for ungraceful EC code flow errors 2,1 CPU failure 2,2 System board failure, corrupt BIOS, ROM error 2,3 No memory/RAM detected 2,4 Memory or RAM failure 2,5 Invalid memory installed 2,6 System board error, chipset error, clock failure, gate A20 failure, keyboard controller failure Troubleshooting 81

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Troubleshooting
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
Locate the Service Tag for your Dell Laptop
.
Diagnostics
Power status light:
Indicates the power status.
The following table shows the power LED states:
Table 20. Power LED status
Power LED state
Description
Off
Computer is in hibernation or turned off.
Solid Amber
The computer is unable to boot to the operating system.
This indicates that the power supply or another device in the
computer is failing.
Blinking Amber
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.
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
Problem description
1,1
TPM Detection failure
1,2
Unrecoverable SPI flash failure
1,5
Failure EC unable to program i-Fuse
1,6
Failure Generic catch-all for ungraceful EC code flow
errors
2,1
CPU failure
2,2
System board failure, corrupt BIOS, ROM error
2,3
No memory/RAM detected
2,4
Memory or RAM failure
2,5
Invalid memory installed
2,6
System board error, chipset error, clock failure, gate
A20 failure, keyboard controller failure
5
Troubleshooting
81