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mahdilou

1 Rookie

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2 Posts

269

December 3rd, 2024 06:39

Urgent Assistance Required for Dell Precision 5820 - Persistent Boot and Diagnostic Errors

Description of the Issue:

I am experiencing persistent issues with my Dell Precision 5820 workstation, and I would like your assistance in diagnosing and resolving the problem. Below are the detailed symptoms:

  1. Automatic Power-On:

    • When the power cable is connected, the system powers on automatically without pressing the power button.
    • This behavior occurs every time, and the system fails to proceed beyond the initial stages of booting.

  2. Error Beeps:

    • As soon as the system powers on, it produces three consecutive beeps.

  3. Diagnostic LED Sequence:

    • The front panel diagnostic LEDs display two amber flashes followed by four white flashes.
    • This sequence remains consistent, even after multiple power cycles.

  4. Behavior Without RAM Installed:

    • I removed all RAM modules from the system to test whether the error changes.
    • However, even with no RAM installed, the exact same diagnostic LED sequence (2 amber, 4 white) is displayed, and the system continues to emit three consecutive beeps.

  5. No Display or Functionality:

    • The system does not display any output on the monitor and fails to recognize connected peripherals.

Steps Taken So Far:

  • I have attempted the following troubleshooting steps without success:
    1. Resetting the BIOS by removing and reinstalling the CMOS battery.
    2. Replacing the CMOS battery with a new one.
    3. Testing with different RAM configurations (using one stick, testing each slot individually, and using known working RAM).
    4. Cleaning the RAM slots and ensuring proper installation.
    5. Removing all non-essential hardware components (GPU, storage drives, etc.).
  • Despite these efforts, the issue persists.

Request: Could you please provide guidance on the root cause of this problem? If hardware repair or replacement is required, please advise on the next steps.

I look forward to your response.

Chino de Oro

9 Legend

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8.1K Posts

December 3rd, 2024 07:56

To seek Dell warranty support, click on Get Help Now button on lower right of this screen.  Otherwise, your questions will be assisted with community members inputs and suggestions.  We are users just like you.

For symptom #1, it is a normal behavior, the system works as designed.  When power cable is connected, the system was designed to turn on and initiate a system check.  By default, the power management settings for action taken after a power outage was set to power OFF, the system would then turn OFF.  Every times you disconnect and reconnected power cable, the system will behave as there was a power outage.

For symptom #2 and #3, they are indication of system memory failure issues.  You failed to disclose any events leading to your system problem.  Information that may help with troubleshooting and causes.

For symptom #4, as mentioned from above, LED codes 2, 4 is indication of memory failure.  Removing the memory adds no memory error and does not clear the previous memory error.

For symptom #5, your system won't be functioned when it detected issue and failed POST.

If changing new battery did not help, clear CMOS using the blue jumper from Password.  Or, performing RTC reset after installing good memory with a proper configuration.

mahdilou

1 Rookie

 • 

2 Posts

December 3rd, 2024 08:06

Thank you for your response.

I have already tried almost all the suggested troubleshooting steps, but unfortunately, the issue persists. Below is an update on my actions and an additional symptom I’ve observed:

  1. Steps Taken:

    • I cleared the CMOS using the blue jumper as recommended.
    • I performed an RTC reset after installing known good memory in a proper configuration.
    • I tested the system with different RAM modules and configurations, and even without any RAM installed.
    • Despite these efforts, the system still produces three consecutive beeps on startup and displays the same 2 amber, 4 white LED diagnostic sequence.

  2. Additional Symptom Observed:

    • When I open the server’s top cover during operation, the system emits a continuous alarm-like sound, similar to an ambulance siren.
    • Does this specific behavior provide any additional insight into the root cause?

I would appreciate further guidance on how to proceed. Could this issue indicate a hardware fault beyond the RAM, such as the motherboard or another critical component?

Looking forward to your assistance.

Chino de Oro

9 Legend

 • 

8.1K Posts

December 3rd, 2024 08:23

The alarm-like sound was to alert about an intrusion was detected.  There is an intrusion switch on your system that can detect when someone opened the chassis panel.  It's another of normal behavior, works as designed.

If the system just suddenly failed and by replacing with all good RAM still did not fix the issue, very likely that the motherboard could be faulty. 

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