Latitude 7480, 2 amber lights 4 white lights

Question

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?

DELL-Jesse L · Answer

If your product is in warranty, you can easily reach out to tech support right here. Just click the Get Help Now button at the bottom right corner of the page.

The button is marked with a help icon for easy recognition as per the picture below:

Now, if you prefer to troubleshoot your system on your own, please note that a pattern of 2 amber lights and 4 white lights indicates a Memory/RAM failure. Follow these steps to resolve the issue:

1. Shutdown Your Device: Ensure your device is powered off completely.
2. Disconnect Power: Unplug the power adapter and remove the battery (if applicable).
3. Re-seat the Memory Modules: Open the access panel to your device's memory modules. Carefully remove and then re-seat each memory module. Ensure they are properly secured in their slots.
4. Check for Loose Connections: Examine other internal connections, ensuring all components are securely in place.
5. Power On: Reconnect the power adapter and battery, then power on your device. Observe if the issue persists.
6. If reseating the memory doesn't fix the issue, try performing a Hard Reset:
  - Turn off your computer.
  - Disconnect the power adapter from your computer.
  - Remove the base cover.
  - Disconnect the battery cable.
  - Press and hold the power button for 20-30 seconds to drain the flea power.
  - Install the battery.
  - Install the base cover.
  - Connect the power adapter to your computer.
  - Turn on your computer.

Important: If the pattern of 2 amber and 4 white lights started after a RAM upgrade, it is likely that the RAM is not compatible with the system.

Important²: If none of the above steps resolve the issue, it is possible that the motherboard may be faulty and require replacement. We recommend contacting technical support by clicking Get Help Now in the bottom right corner of the page, or reaching out to a trusted technician for further assistance.

Harshitsingh · Answer

i am also facing the same issue on inspiron 5570

SanjayKrish · Answer

Thanks. Its much helpful Are memory and RAM the same. If i replace RAM will it work Okay

IT Tech III · Answer

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.

JessWong666 · Answer

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

Dell-Alan D · Answer

@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	Possible Problem	Problem Description
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

Informationkid · Answer

Same, when I was able to get the computer back on I went ahead and did the diagnostic F5 choice when it started the memory test the screen produced black and white lines and once again locked up.

I will buy two new RAM sticks to see if this solves this problem and let you know

Surepelly · Answer

I have the same 2 amber lights and 4 white lights are flashing continuously and windows is not getting started. Can someone help me on this issue please?   Best Regards, Naresh

Dad-e · Answer

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)?

Dad-e · Answer

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?

Latitude

Latitude 7480, 2 amber lights 4 white lights

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