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OptiPlex 3080 Tower Service Manual

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Diagnostics

The computer POST (Power On Self Test) ensures that it meets the basic computer requirements and the hardware is working appropriately before the boot process begins. If the computer passes the POST, the computer continues to start in a normal mode. However, if the computer fails the POST, the computer emits a series of LED codes during the start-up. The system LED is integrated on the Power button.

The following table shows different light patterns and what they indicate.

Table 1. Diagnostic LED behaviorThe following table provides the diagnostically led behavior:
Blinking pattern Problem description
Amber White
1 2 Unrecoverable SPI Flash Failure
2 1 CPU failure
2 2 System board failure (included BIOS corruption or ROM error)
2 3 No memory/RAM detected
2 4 Memory/RAM failure
2 5 Invalid memory installed
2 6 System board / Chipset Error / Clock failure / Gate A20 failure / Super I/O failure / Keyboard controller failure
3 1 CMOS battery failure
3 2 PCI or Video card/chip failure
3 3 BIOS Recovery image not found
3 4 BIOS Recovery image found but invalid
3 5 Power rail failure
3 6 SBIOS Flash corruption
3 7 Intel ME (Management Engine) Error
4 2 CPU Power Cable Connection Issue

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