Dell
dell.com › support › manuals › en-us › precision-16-5690-laptop › precision-5690_owners_manual › system-diagnostic-lights
Precision 5690 Owner's Manual | Dell US
This section lists the system-diagnostic lights of your Precision 5690.
Dell
dell.com › support › kbdoc › en-us › 000135030 › a-reference-guide-to-the-precision-mobile-diagnostic-indicators
A Reference Guide to the Precision Mobile Diagnostic Indicators | Dell US
This indicates the Battery power management LEDs codes. ... With this series, the Diagnostic LEDs changed to use only the System status LED indicators. The Diagnostic LEDs are now the hard drive activity light, the Battery indicator light, and the Wi-Fi light.
5540 1 Amber 8 White LED flashing, not listed in the list of fault codes
I have a 5540 that after going to sleep/hibernation needs 10 second push on power button to start up again, and it flashes 1 Amber and 8 white LEDS as part of displaying an Error. This is not... More on dell.com
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May 26, 2023Precision 5530 - Power light blinking white and orange
Try an external display. I counted 2 amber 7 orange which is a POST code for a dead display. More on reddit.com
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July 10, 2024Precision 5820, Error Code only blinking amber
Hmm, I don't see a 4-1 in the manual: https://www.dell.com/support/manuals/en-us/precision-5820-workstation/precision_5820_om_pub/preboot-blinking-power-button-codes?guid=guid-cedeb3b8-064b-41df-b883-a39456d89249&lang=en-us More on reddit.com
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October 31, 2023XPS 14 9440 1 amber 8 white
A little late, but anyone who has this issue: hold the power button for about 20 seconds then power back on. Should power right up (if it blue screens just choose restart). Mine just did this exact thing and was worried I’d need a new motherboard, meanwhile it just overheated and must have tripped something. More on reddit.com
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September 26, 2024Dell
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
Dell Precision Workstation Desktops have a long history of integrated diagnostic indicators. These can be audible beeps, power buttons that display different states and colors, specific diagnostics LEDs or a combination of them all. So that they can indicate at which point during the Power On Self-Test (POST) a device is having issues. The following article is a reference guide to the codes available on each model and what those codes mean.
Dell Technologies
delltechnologies.com › asset › en-us › products › workstations › technical-support › precision-5690-technical-guidebook.pdf pdf
Precision 5690 Technical Guidebook Regulatory Model: P123F
Battery charge and status light .....................................................................................................................................10 · Chapter 2: Specifications of Precision 5690.................................................................................11
Dell
dell.com › support › manuals › en-us › precision-15-7560-laptop › precision_7560_sm › system-diagnostic-lights
Precision 7560 Service Manual | Dell US
precision-15-7560-laptop | Precision 7560 Service Manual | system-diagnostic-lights
Dell
dell.com › support › product-details › en-us › product › precision-16-5690-laptop › diagnose
Support for Mobile Precision 5690 | Diagnostics | Dell US
Diagnose an issue or test pc for your Dell Mobile Precision 5690. Identify and fix common problems with online dell diagnostics.
Dell
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Battery-charge status light - Precision 5690 Owner's Manual
The following table lists the battery-charge status light of your Precision 5690.
Dell
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Dell Precision 5680 Owner's Manual | Dell US
The power and battery-status light blinks amber along with beep codes indicating failures.
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For anyone still needing a solution we found on the E5540s that if you go into BIOS > Power > USB PowerShare and toggle that option on that this issue is resolved completely. The suggestion by @AardvarkTech does work great, but it has to be changed for each dock that the system is connected to so in a hoteling environment still caused issues. UPDATE: Some of our machines are still having the issue after making this change, but it did fix it for some of them. We have just starting setting Windows to never sleep while connected to power and that resolves it completely.
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Dell laptops use a combination of amber and white LED flashes to indicate specific system issues. The 1 amber and 8 white LED code has been observed across multiple models, including Latitude, XPS, and Dell Plus systems. While this code is not always listed in standard fault code references, it often points to a BIOS-related issue or, in some cases, a motherboard fault. Basic Troubleshooting Steps Connect the AC Adapter DirectlyIf your system is connected via a docking station, try powering it using a direct AC adapter. Some users have reported successful boot after switching from dock to direct power. Perform a Power DrainDisconnect all power sources, then press and hold the power button for 30 seconds. Reconnect the power and try turning the system on again. Update the BIOSIf the system boots, update the BIOS to the latest version. This has resolved the issue on several models: Dell Plus systems XPS systems Next Steps If the issue persists after these steps, it may indicate a motherboard failure or a deeper firmware conflict. We recommend contacting our support team for further assistance. You can use the Get Help Now chat feature located at the bottom right corner of this page. Or, you may reach out to a trusted technician for a hands-on diagnosis. Please see this video for additional general No Post Troubleshooting.
Dell
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Precision 5490 Owner's Manual | Dell Suriname
This section lists the system-diagnostic lights of your Precision 5490.
Reddit
reddit.com › r/dell › precision 5530 - power light blinking white and orange
r/Dell on Reddit: Precision 5530 - Power light blinking white and orange
July 10, 2024 -
Noticed that the power light on my precision 5530 has begun blinking in this pattern, but I can't for the life of me figure out what it means, came here hoping someone might know.
This isn't the first time the power light has begun blinking, a couple months ago it was blinking in reference to the power button light, but then stopped. Now it's started again with this pattern.
Any help is really appreciated, thanks!
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Try an external display. I counted 2 amber 7 orange which is a POST code for a dead display.
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Check this out https://www.dell.com/support/manuals/en-us/precision-15-5530-2-in-1-laptop/precision_5530_2-in-1_servicemanual/system-diagnostic-lights?guid=guid-3c44f4cd-2aca-429a-abe5-bb795abb8b5a&lang=en-us
Dell
dell.com › support › manuals › en-pk › precision-15-5560-laptop › prec5560_sm › system-diagnostic-lights
Precision 5560 Service Manual | Dell Pakistan
The power and battery-status light blinks alternately between amber and off to indicate issues that your computer is encountering.
Dell
dell.com › support › manuals › en-us › oth-xlt5820 › precision_5820_om_pub › preboot-blinking-power-button-codes
Dell Precision 5820 Tower Owner's Manual | Dell US
oth-xlt5820 | Dell Precision 5820 Tower Owner's Manual | preboot-blinking-power-button-codes
Dell
dell.com › dell community › laptops › laptops wiki
Dell Diagnostic Light Patterns and Beep Codes: How to Identify and Fix Hardware Issues | DELL Technologies
September 15, 2025 - Here’s an example of a diagnostic light table, where 2 amber flashes followed by 3 white flashes indicate “No Memory/RAM detected”:
Dell
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Precision 5560 Service Manual | Dell US
precision-15-5560-laptop | Precision 5560 Service Manual
Dell
dell.com › support › manuals › en-us › oth-xlt5860 › precision_5860_tower_sm › system-diagnostic-lights
Precision 5860 Tower Service Manual | Dell US
This section lists the system-diagnostic lights of your computer.
Dell
dell.com › support › manuals › en-us › precision-m5510-workstation › prec5510_pub › device-status-lights
Dell Precision 5510 Owner's Manual | Dell US
The system does not shut down when displaying the Diagnostic Error Codes. Diagnostic Error Codes supersedes any other use of the LED.
Dell
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Latitude 5520 Service Manual | Dell US
July 27, 2023 - latitude-15-5520-laptop | Latitude 5520 Service Manual
nemolaptops
nemolaptops.com › post › diagnostic-led-codes-for-dell-laptops
Diagnostic LED codes for Dell Laptops
January 22, 2023 - These notebooks rely on the Battery ... patterns will consist of 2 sets of numbers being represented by (First Group: Amber blinks, Second Group: White blinks) First Group: The LED blinks 1 to 9 times followed by a brief pause ...