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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
Note: Amber LED blinking pattern: The Power Button LED shall blink the corresponding LED codes for the corresponding fault condition. The repeated pattern has a long pause inserted in the middle. Example: No Memory is detected. The Power Button LED blinks two times followed by a pause, blinks two times, pause, and so on.
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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 ... completes. The power LED stops blinking Amber and White for a POST error, and instead the LED blinks a four-digit Amber code......
Discussions

Precision - Amber Flashing Light with Diagnostic Code 1 and 3 (13)
I'm troubleshooting a Dell Precision T3500 (still under warranty). It runs for up to four minutes, often less, or sometimes won't even boot all the way up. When it does shut off, the front light fl... More on dell.com
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6
0
March 21, 2012
Precision 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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16
9
October 31, 2023
Internal Microphone Not Working: Volume Always at 0% When Testing on Windows
Hi u/jmperro , thanks for posting to r/WindowsHelp ! Don't worry, your post has not been removed. To let us help you better, try to include as much of the following information as possible! Posts with insufficient details might be removed at the moderator's discretion. Model of your computer - For example: "HP Spectre X360 14-EA0023DX" Your Windows and device specifications - You can find them by going to go to Settings > "System" > "About" What troubleshooting steps you have performed - Even sharing little things you tried (like rebooting) can help us find a better solution! Any error messages you have encountered - Those long error codes are not gibberish to us! Any screenshots or logs of the issue - You can upload screenshots other useful information in your post or comment, and use Pastebin for text (such as logs). You can learn how to take screenshots here . All posts must be help/support related. If everything is working without issue, then this probably is not the subreddit for you, so you should also post on a discussion focused subreddit like r/Windows . Lastly, if someone does help and resolves your issue, please don't delete your post! Someone in the future with the same issue may stumble upon this thread, and same solution may help! Good luck! As a reminder, this is a help subreddit, all comments must be a sincere attempt to help the OP or otherwise positively contribute. This is not a subreddit for jokes and satirical advice. These comments may be removed and can result in a ban. I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns. More on reddit.com
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11
1
January 19, 2025
Precision 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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4
1
July 10, 2024
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Dell
dell.com › support › manuals › en-us › precision-15-7540-laptop › precision_7540_service manual › diagnostic-led
Diagnostic LED - Dell Precision 7540 Service Manual
NOTE: he 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, ...
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Dell
dell.com › home › support home › product support › manuals
Precision 7750 Service Manual | Dell US
The power and battery-status light blinks amber along with beep codes indicating failures.
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Dell
dell.com › home › support home › product support › manuals
Dell Precision 3550 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. The following table shows different power ...
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Dell
dell.com › support › manuals › en-us › precision-15-7560-laptop › precision_7560_sm › system-diagnostic-lights
Precision 7560 Service Manual | Dell US
NOTE:Blinking 3-3-3 LEDs on Lock LED (Caps-Lock or Nums-Lock), Power button LED (without Fingerprint reader), and Diagnostic LED indicates failure to provide input during LCD panel test on Dell SupportAssist Pre-boot System Performance Check diagnostics.
Find elsewhere
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Dell
dell.com › support › manuals › en-us › precision-m5510-workstation › prec5510_pub › device-status-lights
Dell Precision 5510 Owner's Manual | Dell US
NOTE The diagnostic pattern consists of a two-digit number that is represented by a first group of amber LED blinks (1 through 9), followed by a 1.5-second pause with the LED off, and then a second group of LED blinks (1 through 9) in white. Followed by a three-second pause, with the LED off, ...
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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 - This guide explains how Dell laptops and desktops use LED light patterns and beep codes to indicate hardware issues during startup. These built-in diagnostics help identify problems when the system...
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Dell
dell.com › dell community › desktops › locked topics – desktops general
Precision - Amber Flashing Light with Diagnostic Code 1 and 3 (13) | DELL Technologies
March 21, 2012 - I was looking for light code for 1 and 3 amber. ... Memory Configuration Error /BAD RAM is bad this is a very specific error. ... The power LED located in the power button on the front of the computer illuminates and blinks or remains solid to indicate five different states:
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Dell
dell.com › support › manuals › en-us › precision-3650-workstation › prec_3650t_sm › system-diagnostic-lights
Precision 3650 Tower Service Manual | Dell US
The blinking patterns consists of two numbers (representing First Group: Amber blinks, Second Group: White blinks).
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Dell
dell.com › home › support home › product support › manuals
Dell Precision Tower 5810 Owner's Manual | Dell US
For example 2,3 = 2 amber blinks, short pause, 3 amber blinks followed by long pause then repeats.
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Dell
dell.com › support › manuals › en-us › precision-15-7520-laptop › prec7520_om_pub › diagnostic-led
Diagnostic LED - Dell Precision 7520 Owner's Manual
NOTE 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, ...
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Dell
dell.com › support › manuals › en-us › precision-3630-workstation › prec_3630_service_manual › diagnostics
Precision 3630 Tower Service Manual | Dell US
For example, the power 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 the Recovery image is not found. The following table shows different light patterns and ...
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Dell
dell.com › support › manuals › en-us › precision-15-3571-laptop › prec_3571-service-manual › system-diagnostic-lights
Precision 3571 Service Manual | Dell US
This section lists the system-diagnostic lights of your Precision 3571. NOTE:Blinking 3-3-3 LEDs on Lock LED (Caps-Lock or Nums-Lock), Power button LED (without Fingerprint reader), and Diagnostic LED indicates failure to provide input during LCD panel test on Dell SupportAssist Pre-boot System ...
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Dell
dell.com › home › support home › product support › manuals
Dell Precision Tower 3620 Owner's Manual | Dell US
For example 2,3 = 2 amber blinks, short pause, 3 amber blinks followed by long pause then repeats.