@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 Answer from Dell-Alan D on dell.com
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Dell
dell.com › dell community › laptops › laptops wiki
Fix Dell Laptop LED Blink Code 2 Amber, 4 White (Memory Error) | DELL Technologies
March 31, 2026 - Blink pattern: 2 amber → pause → 4 white → repeats (front battery/power LED).
Discussions

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 work... More on dell.com
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August 22, 2018
Dell XPS - 2 Amber & 4 White Blinking Lights
Model: XPS 15 - 9510 - 0Ghz - 2000.00Gb HD - 32000.00Mb Mem Issue: I went to turn on my laptop (previously had no issues with), the Dell logo appears (white logo, black screen) but does not p... More on dell.com
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May 25, 2024
Aurora R13, blinking 4 amber/2 white, CPU power cable connection issue
I replaced the 750W PSU with a genuine Dell 1000w PSU, this took weeks to arrive and did not fix the problem. After a lot of googling and asking questions I heard from someone who fixed this problem with a mobo swap so. I got a used mobo off Ebay and today swapped it in. The PSU now stays on, which is encouraging. But the machine does not go into boot sequence. I get a blinky code: 4 amber 2 white... More on dell.com
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March 30, 2024
XPS 9300 - 4 White, 2 amber blinks
My XPS13 gets stuck on the Dell boot screen and powers off but whenever it boots again, it has 4 white blinks followed by 2 amber blinks. It also begins to get hot around the power button area. Hop... More on dell.com
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March 20, 2022
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Dell
dell.com › dell community › laptops › laptops wiki
How to fix a device showing 2 amber and 4 white lights? | DELL Technologies
January 18, 2024 - The 2 amber + 4 white LED blink code on Dell Inspiron systems typically signals a memory (RAM) failure or related hardware issue detected during startup. If your product is in warranty, you can eas...
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@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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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: Shutdown Your Device: Ensure your device is powered off completely. Disconnect Power: Unplug the power adapter and remove the battery (if applicable). 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. Check for Loose Connections: Examine other internal connections, ensuring all components are securely in place. Power On: Reconnect the power adapter and battery, then power on your device. Observe if the issue persists. 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. Video Assistance: Troubleshooting Memory Errors on Dell Laptops
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dell.com › support › kbdoc › en-us › 000212626 › inspiron-all-in-one-desktop-no-post-power-led-blinking-2-and-4
Inspiron All in One Desktop Does Not POST and the Power LED Blinks Two Amber and Four White Flashes | Dell US
The following article provides information about the Inspiron All-in-One (AIO) that displays the No Power-On Self-Test (POST) diagnostic code. The power Light Emitting Diode (LED) blinks a two amber and four white repeated flash code.
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Dell
dell.com › support › kbdoc › en-us › 000366873 › 4-amber-4-white-no-post-error-on-dell-pro-max-plus-laptops
Four Amber Four White No POST Error on Dell Pro Max Laptops | Dell US
The error only occurs after changing the following settings in the BIOS: Enable the Discrete Graphics Controller Direct Output Mode setting under 'Display: Hybrid Graphics or Advanced Optimus' Disable the Enable Microsoft UEFI CA setting under 'Boot Configuration' ...
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Iss
iss-kb.iss.k12.nc.us › books › windows-devices › page › dell-diagnostic-led-blink-codes
Dell Diagnostic LED Bl... | ISS Tech Knowledge Base
The diagnostic pattern will consist of a two-digit number being represented by a first group of LED blinks (1 through 9) in amber, followed by a 1.5 second pause with the LED off, and then a second group of LED blinks (1 through 9) in white. This is then followed by a three second pause, with the LED off, before repeating over again.
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Dell
dell.com › support › kbdoc › en-us › 000211732 › no-post-2-4-2-amber-and-4-blinking-white-when-memory-is-populated-in-the-wrong-dimm-slot
Precision 5860 Tower or Precision 7960 Tower No POST ...
You may experience no POST with LEDs showing 2-4 (2 amber and 4 blinking white) if the single DIMM of memory is installed in the wrong DIMM slots.
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Dell
dell.com › support › kbdoc › en-us › 000126021 › a-reference-guide-to-the-dell-optiplex-diagnostic-indicators
A Reference Guide to the Dell OptiPlex Diagnostic Indicators | Dell US
Identify these models by their flat black front face and gray side panels and lids. NOTE: To see the contents of a section, click the heading to expand that section. ... This series had a block of four LEDs (A, B, C, and D) on the back of the chassis that lit up in green and amber...
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Dell
dell.com › dell community › laptops › xps
Dell XPS - 2 Amber & 4 White Blinking Lights | DELL Technologies
May 25, 2024 - Issue: I went to turn on my laptop (previously had no issues with), the Dell logo appears (white logo, black screen) but does not proceed passed it. I have done some hard restarts on it (by keeping finger on the power button), but each time I have this problem. The battery light flashes twice amber and then four times white.
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Dell
dell.com › dell community › desktops › alienware desktops
Aurora R13, blinking 4 amber/2 white, CPU power cable connection issue | DELL Technologies
March 30, 2024 - The PSU now stays on, which is encouraging. But the machine does not go into boot sequence. I get a blinky code: 4 amber 2 white, which the manual says means a "CPU power cable connection issue.".
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Hi, pattern 2 amber, 4 white is for Memory or RAM failure.  First thing i would try is reseating RAM. Second thing i would do is flea power release: Flea power is the residual static electricity that remains on the computer even after it has been powered off and the battery has been removed. The following procedure provides the instructions on how to conduct flea power release: Turn off your computer. Remove the base cover. Press and hold the power button for 15 seconds to drain the flea power. Replace the base cover. Turn on your computer. Dell forgot to add up one step for this ( its to unplug battery doing flee power release) Third thing i would do is hold power button for 30 seconds ( more on link bellow): https://www.dell.com/support/article/si/en/sibsdt1/sln304892/how-to-reset-real-time-clock-rtc-to-recover-your-dell-portable-system?lang=en Also try this if your product is supported: http://dell.to/2u4vSud The HDD and DATA should be unharmed as it doesnt have anything to do with above troubles. Regards,
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Hi georgemery, Thanks for posting.  Apologies that your system is not performing as expected.   If you still require assistance and the system is under warranty, you may contact me privately. Be sure to include your personal information (name, address, telephone, email) and your computer's service tag number in your message. Thanks.   If there is no warranty, then you could contact our Out of Warranty team to get a quote for a paid service request.
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Dell
dell.com › support › kbdoc › en-us › 000153002 › a-reference-guide-to-the-precision-workstation-diagnostic-indicators
A Reference Guide to the Precision Workstation Diagnostic Indicators | Dell US
Note: The Precision 36x0 series ... Assessment (ePSA) diagnostics once the POST process completes. The power LED stops blinking Amber and White for a POST error, and instead the LED blinks a four-digit Amber code....
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Dell
dell.com › dell community › laptops › laptops wiki
LCD Failure Troubleshooting: 2 Amber, 7 White Blinking LED | DELL Technologies
March 19, 2025 - The LED pattern 2 amber, 7 white indicates an LCD failure. This diagnostic code is common across multiple Dell laptop families (Inspiron, Latitude, XPS, etc.).
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JustAnswer
justanswer.com › computer › khjyt-dell-computer-blinking-2-already-opened-back.html
Dell Computer Blinking 5 White 2 Amber: Expert Solutions
The 5 white and 2 amber LED blink code on Dell indicates a memory (RAM) or motherboard error. First, reseat the RAM modules firmly and test each stick individually. Disconnect the battery and power, then hold the power button for 30 seconds to reset.