Dell Inspiron 3020 Small Desktop Service Manual - Page 71

Table 20. LED codes continued, Table 21. LED codes, Diagnostic light codes, Problem description

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Table 20. LED codes (continued) Diagnostic light codes 2,2 2,3 2,4 2,5 2,6 3,1 3,2 3,3 3,4 3,5 3,6 3,7 4,1 4,2 Problem description Motherboard, covers BIOS corruption or ROM error No Memory/RAM detected Memory/RAM failure Invalid memory installed Motherboard/chipset error CMOS battery failure PCI of Video card/chip failure Recovery Image not found Recovery Image found but invalid EC ran into power sequencing failure Flash corruption detected by SBIOS Timeout waiting on ME to reply to HECI message Memory DIMM power rail failure CPU power cable connection issue Table 21. LED codes Diagnostic light codes 1,1 1,2 2,1 Problem description TPM detection failure Unrecoverable SPI flash failure CPU failure 2,2 Motherboard, covers BIOS corruption or ROM error 2,3 No Memory/RAM detected 2,4 Memory/RAM failure 2,5 Invalid memory installed 2,6 Motherboard/chipset error 3,1 CMOS battery failure 3,2 PCI of Video card/chip failure 3,3 Recovery Image not found 3,4 Recovery Image found but invalid 3,5 EC ran into power sequencing failure 3,6 Flash corruption detected by SBIOS Recommended solutions Replace the system board or the TPM chip. Replace the system board. Run the Intel CPU diagnostics tools. If problem persists, replace the system board. Flash latest BIOS version. If problem persists, replace the system board. Confirm that the memory module is installed properly. If problem persists, replace the memory module. Reset the memory module. If problem persists, replace the memory module. Reset the memory module. If problem persists, replace the memory module. Flash latest BIOS version. If problem persists, replace the system board. Reset the CMOS battery connection. If problem persists, replace the CMOS battery. Replace the system board. Flash latest BIOS version. If problem persists, replace the system board. Flash latest BIOS version. If problem persists, replace the system board. Run the PSU built-in self-test (BIST) to identify the issue, reseat the cables. If nothing works, replace the system board, power supply, or cabling. Flash corruption detected by system BIOS. If problem persists, replace the system board. Troubleshooting 71

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Table 20. LED codes (continued)
Diagnostic light codes
Problem description
2,2
Motherboard, covers BIOS corruption or ROM error
2,3
No Memory/RAM detected
2,4
Memory/RAM failure
2,5
Invalid memory installed
2,6
Motherboard/chipset error
3,1
CMOS battery failure
3,2
PCI of Video card/chip failure
3,3
Recovery Image not found
3,4
Recovery Image found but invalid
3,5
EC ran into power sequencing failure
3,6
Flash corruption detected by SBIOS
3,7
Timeout waiting on ME to reply to HECI message
4,1
Memory DIMM power rail failure
4,2
CPU power cable connection issue
Table 21. LED codes
Diagnostic light codes
Problem description
Recommended solutions
1,1
TPM detection failure
Replace the system board or the TPM chip.
1,2
Unrecoverable SPI flash failure
Replace the system board.
2,1
CPU failure
Run the Intel CPU diagnostics tools. If problem
persists, replace the system board.
2,2
Motherboard, covers BIOS corruption or
ROM error
Flash latest BIOS version. If problem persists, replace
the system board.
2,3
No Memory/RAM detected
Confirm that the memory module is installed properly.
If problem persists, replace the memory module.
2,4
Memory/RAM failure
Reset the memory module. If problem persists, replace
the memory module.
2,5
Invalid memory installed
Reset the memory module. If problem persists, replace
the memory module.
2,6
Motherboard/chipset error
Flash latest BIOS version. If problem persists, replace
the system board.
3,1
CMOS battery failure
Reset the CMOS battery connection. If problem
persists, replace the CMOS battery.
3,2
PCI of Video card/chip failure
Replace the system board.
3,3
Recovery Image not found
Flash latest BIOS version. If problem persists, replace
the system board.
3,4
Recovery Image found but invalid
Flash latest BIOS version. If problem persists, replace
the system board.
3,5
EC ran into power sequencing failure
Run the PSU built-in self-test (BIST) to identify the
issue, reseat the cables. If nothing works, replace the
system board, power supply, or cabling.
3,6
Flash corruption detected by SBIOS
Flash corruption detected by system BIOS. If problem
persists, replace the system board.
Troubleshooting
71