Dell 980 service manual Beep Codes, Blinking Amber Solid Amber Green, Code Cause

Blinking Amber

Solid Amber

Blinking

Green

Solid

Green

Power is off, light is blank.

Initial state of light at power up.

Indicates system has power, but the POWER_GOOD signal is not yet active.

If the Hard Drive light is off, it is probable that the power supply needs to be replaced.

If the Hard Drive light on, it is probable that an onboard regulator or VRM has failed. Look at the diagnostic lights for further information.

Second state of the light at power up. Indicates the POWER_GOOD signal is active and it is probable that the power supply is fine. Look at the diagnostic lights for further information.

System is in a low power state, either S1 or S3. Look at the diagnostic lights to determine which state the system is in.

System is in S0 state, the normal power state of a functioning machine.

The BIOS will turn the light to this state to indicate it has started fetching op-codes.

Beep Codes

If the monitor cannot display error messages during the POST, the computer may emit a series of beeps that identifies the problem or that can help you identify a faulty component or assembly. The following table lists the beep codes that may be generated during the POST. Most beep codes indicate a fatal error that prevents the computer from completing the boot routine until the indicated condition is corrected.

Code	Cause
1-1-2	Microprocessor register failure
1-1-3	NVRAM
1-1-4	ROM BIOS checksum failure
1-2-1	Programmable interval timer
1-2-2	DMA initialization failure
1-2-3	DMA page register read/write failure

1-3-1 through 2-4-4 DIMMs not being properly identified or used

3-1-1	Slave DMA register failure
3-1-2	Master DMA register failure
3-1-3	Master interrupt mask register failure
3-1-4	Slave interrupt mask register failure
3-2-2	Interrupt vector loading failure
3-2-4	Keyboard Controller Test failure
3-3-1	NVRAM power loss
3-3-2	NVRAM configuration
3-3-4	Video Memory Test failure
3-4-1	Screen initialization failure
3-4-2	Screen retrace failure
3-4-3	Search for video ROM failure