Dell OptiPlex 5080 Small Form Factor Service Manual - Page 48

Diagnostic LED behavior

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Diagnostic LED behavior Table 7. Diagnostic LED behavior Blinking pattern Amber 1 White 2 2 1 2 2 2 3 2 4 2 5 2 6 3 1 3 2 3 3 3 4 3 5 3 6 Problem description Suggested resolution Unrecoverable SPI Flash Failure CPU failure ● Run the Intel CPU diagnostics tools. ● If problem persists, replace the system board. System board failure (included ● BIOS corruption or ROM ● error) Flash latest BIOS version If problem persists, replace the system board. No memory/RAM detected ● Confirm that the memory module is installed properly. ● If problem persists, replace the memory module. Memory/RAM failure ● Reset the memory module. ● If problem persists, replace the memory module. Invalid memory installed ● Reset the memory module. ● If problem persists, replace the memory module. System board / Chipset ● Flash latest BIOS version Error / Clock failure / Gate ● If problem persists, A20 failure / Super I/O replace the system board. failure / Keyboard controller failure CMOS battery failure ● Reset the CMOS battery connection. ● If problem persists, replace the RTS battery. PCI or Video card/chip failure Replace the system board. BIOS Recovery image not found ● Flash latest BIOS version ● If problem persists, replace the system board. BIOS Recovery image found ● Flash latest BIOS version but invalid ● If problem persists, replace the system board. Power rail failure ● EC ran into power sequencing failure. ● If problem persists, replace the system board. SBIOS Flash corruption ● Flash corruption detected by SBIOS 48 Troubleshooting

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Diagnostic LED behavior
Table 7. Diagnostic LED behavior
Blinking pattern
Problem description
Suggested resolution
Amber
White
1
2
Unrecoverable SPI Flash
Failure
2
1
CPU failure
●
Run the Intel CPU
diagnostics tools.
●
If problem persists,
replace the system board.
2
2
System board failure (included
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
System board / Chipset
Error / Clock failure / Gate
A20 failure / Super I/O
failure / Keyboard controller
failure
●
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 RTS battery.
3
2
PCI or Video card/chip failure
Replace the system board.
3
3
BIOS Recovery image not
found
●
Flash latest BIOS version
●
If problem persists,
replace the system board.
3
4
BIOS Recovery image found
but invalid
●
Flash latest BIOS version
●
If problem persists,
replace the system board.
3
5
Power rail failure
●
EC ran into power
sequencing failure.
●
If problem persists,
replace the system board.
3
6
SBIOS Flash corruption
●
Flash corruption detected
by SBIOS
48
Troubleshooting