Dell OptiPlex 7080 Tower Service Manual - Page 94
Diagnostic LED behavior
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Diagnostic LED behavior Table 9. 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 Dell Support Assist/Dell Diagnostics tool. ● 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 94 Troubleshooting