On an XPS 13, the RAM is soldered in -- if it fails (which is what that error code means), the mainboard needs to be replaced. Try a reset first (unplug the system, remove the base cover, disconnect the battery from the system board and hold the power button for 30 sec).  Reconnect the battery, replace the base cover and see if the system will  power up. If the error continues and the system is under warranty, call Dell for repair.  If it's out of  warranty, brace yourself for a repair bill of at least several hundred dollars. Answer from ejn63 on dell.com
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Dell
dell.com › support › manuals › en-us › precision-15-5550-laptop › precission_5550_sm › system-diagnostic-lights
Dell Precision 5550 Service Manual | Dell US
For example, the power and battery-status light blinks amber two times followed by a pause, and then blinks white three times followed by a pause. This 2,3 pattern continues until the computer is turned off indicating no memory or RAM is detected.
Discussions

2 amber & 4 white
Memory or Read-Only Memory (ROM) failure If competent, take the memory out and try the following - if there are two DIMMS then try each one in each slot to see if there is any change, if just one DIMM the try both slots and also try no RAM installed and it should produce a 2,3 code. Manual at https://dl.dell.com/content/manual36483742-dell-g15-5515-service-manual.pdf?language=en-us and memory at P. 24 Remember to insert and remove at 45 degree angle. Good luck Got warranty? More on reddit.com
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March 21, 2024
4 times White and 2 times Amber Light blinks with Dell logo displayed
Hi, I know this would be a common issue. When I press the power button on my XPS 13 Dell Laptop it shows Dell logo and nothing happens. The front led lights blinks white for 4 times and then amber ... More on dell.com
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February 19, 2022
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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10
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August 22, 2018
battery led 4 amber 1 white
I apologize if these are stupid questions, but here goes: Is it possible you pinched or damaged one of the wires coming from the battery connections on the motherboard when you reassembled the case? Or, it's just a bad battery. More on reddit.com
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August 13, 2022
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ManualsLib
manualslib.com › brands › dell manuals › laptop › latitude 5550 › service manual
Troubleshooting; System Diagnostic Lights - Dell Precision 5550 Service Manual [Page 59] | ManualsLib
April 22, 2022 - For example, the power and battery-status light blinks amber two times followed by a pause, and then blinks white three times followed by · a pause. This 2,3 pattern continues until the computer is turned off indicating no memory or RAM is detected.
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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: There are three types of color for the Power LED: Green, Blue, or White depending on the desktop model · Note: Diagnostic LEDs can be either Green or Amber depending on the model type, but are always either off, flashing, or solid on. This series had a combination of Power button LED states with the diagnostic LEDs 1, 2, 3, 4. The diagnostics LEDs are on the front of the chassis. Note: There are two types of color for the Power LED: Green or Blue depending on the desktop model. Dell Precision desktops have a long history of integrated diagnostic indicators.
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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).
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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 Error of 2 Amber 4 Blinking White | Dell US
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. This occurs when memory is not inserted into the memory slots starting with DIMM 1. ... This is expected behavior if the memory is not installed ...
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Dell
dell.com › support › manuals › en-us › precision-17-5750-laptop › precision_5750_sm › system-diagnostic-lights
Dell Precision 5750 Service Manual | Dell US
For example, the power and battery-status light blinks amber two times followed by a pause, and then blinks white three times followed by a pause. This 2,3 pattern continues until the computer is turned off indicating no memory or RAM is detected.
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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
dell.com › dell community › laptops › latitude
4 white and 2 amber light | DELL Technologies
September 6, 2022 - It's been like almost 10 times this is happening since a month. Laptop doesn't switch on. All i have to do is wait to drain all the battery and then charge again to start it. What should i do to so...
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Dell
dell.com › support › manuals › en-in › precision-15-5550-laptop › precission_5550_sm › system-diagnostic-lights
Dell Precision 5550 Service Manual | Dell India
For example, the power and battery-status light blinks amber two times followed by a pause, and then blinks white three times followed by a pause. This 2,3 pattern continues until the computer is turned off indicating no memory or RAM is detected.
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Dell
dell.com › support › manuals › en-us › precision-15-5530-2-in-1-laptop › precision_5530_2-in-1_servicemanual › system-diagnostic-lights
Dell Precision 5530 2-in-1 Service Manual | Dell US
For example, the power and battery-status light blinks amber two times followed by a pause, and then blinks white three times followed by a pause.
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Reddit
reddit.com › r/dell › g5 5000 desktop - blinking power light - 2 amber / 4 white when turning on.
r/Dell on Reddit: G5 5000 desktop - blinking power light - 2 amber / 4 white when turning on.
March 13, 2021 -

G5 5000 desktop - blinking power light - 2 amber / 4 white when turning on.

When I went to turn on my G5 5000 all I got was the blinking power light... some quick searches told me it was a memory error. I only have 1x16gb ram and it is in the second slot from the cpu (the first white tab slot). So I did the only thing I know to do, which is pull the ram and then re-seat it back in the slot. That didn't help at all, as I got the same lights. So I took the ram out again, and I put it in a different computer, and it worked fine. I saw that it showed in the total memory of that computer. So I figure it must be the motherboard. But just for fun, I decided to try the ram in the fourth slot from the cpu (the second white slot), not knowing if this would even work, since all I had ever known was to load memory sticks from near to far from cpu. Well, low and behold, when I powered it on I didn't get any blinking lights... but it went into the Pre-Boot System Performance Check and when finished said there was a critical error (which I knew). However after that I was able to get into Windows, and it has been running fine since. So I guess my initial question is, is it ok to run it in that slot ?

So here's a little bit more to the story (ah!) and trying to determine if I did this to it. As you can see in the attached photo, I have installed the Noctua NH-U9S to help with the well documented underwhelming stock cooler provided. Is there something that I could have done while installing that, that could have shorted out that memory slot ? And does this mean I am stuck with single channel memory forever ? I was just wondering (and haven't tried it yet), does this mean that the first black slot is fried too? And since the second white slot worked, and provided the first black slot works, can I just use the black slots - or does something need to be in the white slots ? Sorry for so many questions, I'm learning on the fly here.

Thanks in advance to any help that can be provided.

- Steve

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Dell
dell.com › dell community › laptops › inspiron
2 amber 4 white | DELL Technologies
July 17, 2019 - Hi I was playing Minecraft and listening to music on YouTube when all the sudden my screen glitches out like you would see on an old vcr a fan I’ve never heard before kicked on and I tried turning ...
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Dell
dell.com › dell community › laptops › inspiron
Inspiron 7570, 2 Amber and 4 white blinking LED | DELL Technologies
June 2, 2020 - The screen on my June 2018 out of warranty Inspiron 7570 displayed a band of static. It would not restart after closing down. The front LED now flashes a pattern of 2 amber and 4 white repeating.
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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.