Latitude

2 Bronze

Latitude 7480 2 amber lights 4 white lights

Hello guys,

I read over some posts about another series laptop also being affected with this,found a method that consists to connect it to a external display (docking's monitors are valid) and worked good,video shows.

This morning i had the same issue and external displays aren't resolving the situation.

The motherboard was replaced some months back..

is someone with this issue on Latitude 7480?

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Solution (1)

Accepted Solutions
Moderator
Moderator

sergioax,

The diagnostics led's that you are reporting is a Ram Failure. Reseat the memory in the system to see if that will resolve the issue.

The system will not shut down when displaying the diagnostic error codes.

Diagnostic error codes will always supersede any other use of the LED. For instance, on notebooks, battery codes for low-battery or battery-failure situations will not be displayed when diagnostic error codes are being displayed.

Blinking Pattern

Possible Problem Problem Description
Amber White
2
1
CPU CPU failure
2
2
BIOS ROM failure System board failure (included BIOS corruption or ROM error)
2
3
Memory No memory/RAM detected
2
4
Memory Memory/RAM failure
2
5
Memory Invalid memory installed
2
6
Chipset System board / chipset error
2
7
LCD LCD failure
3
1
RTC power failure CMOS battery failure
3
2
PCI/video PCI or video card / chip failure
3
3
BIOS recovery 1 Recovery image not found
3
4
BIOS recovery 2 Recovery image found but invalid

Click the link below to download the online manual for information on how to reseat the memory.

Latitude 7480 Drivers, Downloads and Manuals

 

No Post Video Help:

 

 



 

View solution in original post

Dell Accepted Solution
Replies (12)
Moderator
Moderator

sergioax,

The diagnostics led's that you are reporting is a Ram Failure. Reseat the memory in the system to see if that will resolve the issue.

The system will not shut down when displaying the diagnostic error codes.

Diagnostic error codes will always supersede any other use of the LED. For instance, on notebooks, battery codes for low-battery or battery-failure situations will not be displayed when diagnostic error codes are being displayed.

Blinking Pattern

Possible Problem Problem Description
Amber White
2
1
CPU CPU failure
2
2
BIOS ROM failure System board failure (included BIOS corruption or ROM error)
2
3
Memory No memory/RAM detected
2
4
Memory Memory/RAM failure
2
5
Memory Invalid memory installed
2
6
Chipset System board / chipset error
2
7
LCD LCD failure
3
1
RTC power failure CMOS battery failure
3
2
PCI/video PCI or video card / chip failure
3
3
BIOS recovery 1 Recovery image not found
3
4
BIOS recovery 2 Recovery image found but invalid

Click the link below to download the online manual for information on how to reseat the memory.

Latitude 7480 Drivers, Downloads and Manuals

 

No Post Video Help:

 

 



 

View solution in original post

Dell Accepted Solution

Thanks. Its much helpful

Are memory and RAM the same.

If i replace RAM will it work Okay

Thanks for this! I had the same 4 White/2 Amber blink code on a 7480 as original poster and re-seating the ram and doing firmware updates cleared up all my issues.

Hello Jesse,

Does this apply to model Latitude 5490 and 7490  as well ?

@JessWong666 those codes are uniform across the last few generations of Latitudes.

To get an accurate diagnostics sequence it's recommended that you try a diagnostic boot by holding down the Fn key and powering on the system. The system will then flash the power button in sequence to advise what fault its encountering.

Blinking Pattern

Possible Problem Problem Description
Amber White
2
1
CPU CPU failure
2
2
BIOS ROM failure System board failure (included BIOS corruption or ROM error)
2
3
Memory No memory/ RAM detected
2
4
Memory Memory/ RAM failure
2
5
Memory Invalid memory installed
2
6
Chipset System board/ Chipset error
2
7
LCD LCD failure
3
1
RTC power failure CMOS battery failure
3
2
PCI/ Video PCI or Video card/ chip failure
3
3
BIOS recovery 1 Recovery image not found
3
4
BIOS recovery 2 Recovery image found but invalid

 

If you are currently encountering this issue I'll drop you a private message to get your tag details.

Alan

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Hi, I have the same problem. However, after trying to reseat the memory (RAM), i.e. taking out the RAMs and putting them back in the slots, the problem persist. Any advice how to solve the issue?

Sorry, I actually have 2 amber lights and 5 white lights. Does it mean the memory (RAM) is broken and I need to change the memory (RAM)?

@DELL-Jesse LIm having the same issue with my Inspiron 5570. How do I fix this?

2 Bronze

i am also facing the same issue on inspiron 5570
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