ciph

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ciph

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October 21st, 2026 19:14

Dell Pro Max 16 Plus MB16250 Instability Issue (Crashes)

At my workplace we have 22 of the Dell Pro Max 16 Plus MB16250 laptops we deployed to users. Two of them are having frequent crashes in Windows that trigger a bugcheck log entry, memory dump, and kernel warning about an unexpected restart. Users see black screen restart messages (previously known as BSODs) with stop codes such as IRQL_NOT_LESS_OR_EQUAL or KMODE_EXCEPTION_NOT_HANDLED. That leads me to believe this is either an issue with the hardware or a problem at the driver level.

 

One system also had SYSTEM_SERVICE_EXCEPTION stop codes at one point, but there was Windows corruption which was repaired completely. Then that system continued to have crashes with other stop codes later.

 

These 22 systems we have are of two configurations:

  • Intel Ultra 7 265HX CPU with an NVIDIA RTX Pro 2000 Blackwell GPU
  • Intel Ultra 9 285HX CPU with an NVIDIA RTX Pro 3000 3000 Blackwell GPU

 

We've seen these stability issues occur frequently with two specific laptops of the Ultra 9 285HX with an RTX Pro 3000 configuration.

 

The crashes can go anywhere from an hour to days in-between occurrences and always force a system restart. And they can be when a user isn't going anything intensive, just checking email or using one or two regular apps at a time, such as Teams, Outlook, or Acrobat.

 

System Details:

  • Dell Pro Max 16 Plus MB16250
  • Baseboard 075R9G, version A01
  • Latest Dell BIOS/Firmware version: 3.3.2 from 8/3/2026, SMBIOS 3.8, embedded 1.08
  • Windows 11 Enterprise 25H2 with build 26200.9711
  • We deploy Windows with MDT (yes, still MDT) which is still compatible with Windows 11. We haven't had issues with any other laptop models (e.g., Precision 7680, 5680, and Latitude 74xx models are fine).
  • We do not use Secure Boot or drive encryption, so all of that is disabled.
  • We do install Dell ControlVault3 (6.4.48.61 - A16 on our deployment), but do not use any other Dell management/SupportAssist software.
  • No yellow exclamations or red anything in Device Manager.
  • Systems are joined to our EAD, but crashes occur across multiple user profiles
  • Additional software on these laptops: Office 365 with Teams, Adobe Creative Cloud, Autodesk AutoCAD and Revit, Zoom, Firefox, Chrome, GlobalProtect VPN, Nessus, Windows Defender Enterprise, BigFix, LAPS, 7-Zip, and Logi Options.

 

Troubleshooting:

  • I've run through the "DISM /Online /Cleanup-Image /RestoreHealth" and "sfc /scannow" commands. Most of the time there's no corruption and nothing to repair. Once there was corruption, probably due to a crash with poor timing, but then afterwards additional crashes and no system corruption.
  • On one of the systems I was able to get possession of it for some time, so I ran thorough (and time intensive) memory and drive tests. I also ran some Prime95 CPU and benchmark GPU stress testing. This was in a Hiren WinPE boot environment. No issues, as all tests passed.
  • I made sure the system had all Windows updates
  • I've cleaned up temp files and ran Disk Cleanup
  • We normally use Dell for driver updates, but I also tried latest NVIDIA drivers for the RTX GPU as recommend in another thread (and Windows still crashed).

 

Any suggestions? Or should I work with our Dell sales rep to swap out these systems completely or utilize Dell support for onsite component replacement?

 

Thank you!

(edited)

  • DELL-Nat M

    Community Manager

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    Posted November 4th, 2026 15:06

    Hi everyone,

     

    A few weeks ago, we shared that BIOS version 3.5.2 was released to address the BSOD and system crash issues discussed in this thread.
     
    If you've had a chance to install it, we'd love to hear how it's working for you. Has it improved system stability or resolved the issue? Please share your experience below.

    #IWork4Dell

  • DELL-Daniel V

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    Posted October 26th, 2026 13:54

    Hi all, 

     

    Yes the latest BIOS that was released is meant to address the blue screen issues. Please update to the latest BIOS version for your system. If the issue remains unresolved, please continue to let us know. Users should contact tech support and refer the agent to view Dell article 000492904 if issues are ongoing. 

    (edited)

    DELL-Daniel V
    #IWork4Dell
    Digital Support Forum Liaison

    New to Community? Check our FAQ!

  • DELL-Daniel V

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    Posted October 21st, 2026 19:24

    Users with a Pro Max Plus MB16250 or MB18250 should contact Support via the Get Help Now button. Your issue is likely related to an issue that is under investigation. Inform the agent to view Dell Knowledge Article 000492904 to identify the issue and to aid with providing a workaround. If the issue remains unresolved after they assist with the workaround, then Support will provide the appropriate next steps.

    (edited)

    DELL-Daniel V
    #IWork4Dell
    Digital Support Forum Liaison

    New to Community? Check our FAQ!

  • ciph

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    Posted October 21st, 2026 20:04

    @DELL-Daniel V​ thank you. According to Dell's tech support, they stated:

     

    Sure thing, this will be the workaround to resolve this issue
     
    Open Control Panel
    Click Uninstall a Program
    Click View installed updates option
    Check which hot fixes are installed on the computer.
     
    If any of the hot fixes listed below are installed on the computer, uninstall them and reboot the computer:
    KB5089549
    KB5089573
    KB5094126
    KB5095093
     
    Install the pass 2026-03 Cumulative Update for Windows 11 Version 24H2 KB5079473 (select the correct file for the CPU that is installed in the computer) and reboot.
    Search for KB5079473 and download the file base on your computer.
    Install the hotfix and reboot computer, the operating system version will be 26200.8037(25H2) or 26100.8037(24H2)
    Warning: After installing the hotfix, pause Windows Update (this is to avoid updating to a newer failed hotfix version).

     

    I'll post back here after trying that.

  • Galxz

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    Posted October 22nd, 2026 14:55

    @DELL-Daniel V​ Nobody can view this article.

  • DELL-Daniel V

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    Posted October 22nd, 2026 14:59

    @Galxz​ This is a Dell internal article as the issue is still under investigation. There may be a public article released in the future once the resolution is confirmed, but I wouldn't know when that may be. 

    DELL-Daniel V
    #IWork4Dell
    Digital Support Forum Liaison

    New to Community? Check our FAQ!

  • ciph

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    Posted October 22nd, 2026 19:15

    @DELL-Daniel V​ My workplace is a university, so I checked with our college-level IT on this. Below was their feedback regarding the workaround proposed by Dell. But first, I must mention that our Windows 11 updates come directly from Microsoft. We used to have a WSUS server, but Microsoft ignores those settings now for EAD-joined systems. So we no longer have control to filter updates.

     

    The response:

    Their workaround is not acceptable. If I understand correctly, they want you to go back to Mar. 2026 Cumulative update. That would open the computer up to numerous security vulnerabilities that have been patch in the past 7 months.

     

    Additionally, the KB’s they listed to remove are May & June’s Cumulative update, which shouldn’t be on the computer anymore as they would have been superseded/replaced by every cumulative update after that and should be at Oct. Cumulative now.

     

    Those troubleshooting steps seem old/outdated.

    I also agree that this would open our systems up to additional vulnerabilities. Just look at the hornet's nest from the latest news regarding PHP vulnerabilities, and heaven forbid something happens with a past un-patched version of Windows 11 that affects our users. Also, pausing updates until Microsoft/Dell resolve this puts our systems at risks for zero day exploits and misses out on Microsoft's patch Tursday for everything else.

     

    How can Dell resolve this with Microsoft?

  • dbiciusca

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    Posted October 26th, 2026 09:17

    is the latest dell bios update related to this issue that many of us are struggling with since summer? right now my only workaround was to disable turboboost entirely but I hope an update from dell finds a permanent solution to this problem.

     

  • ciph

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    Posted October 28th, 2026 14:07

    @dbiciusca​ I've been working with our Dell rep and a Dell support manager and staff member. They stated the 10/23 BIOS/Firmware update (3.5.2) is supposed to address this crashing issue. However, the notes online just reference security updates. So I'm a bit confused. I ran this update on one of the two systems to see if it helps. I'll report back my findings, but time will tell if that helps.

  • BaileyWeiler

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    Posted November 1st, 2026 21:28

    Same issue on our MB16250, 13 months and still unresolved

    We have a Dell Pro Max 16 Plus (MB16250), bought in September 2025, with the same random hard freezes and crashes described here. The screen stays on, the mouse and keyboard stop responding, and the only way out is holding the power button. It has done this since the first weeks we owned it.

    Here is what has been done so far, with our IT provider and Dell support:

    • Operating system wiped and reloaded
    • Newer drivers from Dell, plus a memory error repair
    • BIOS updated, including advisory ET005326
    • Motherboard replaced by a Dell onsite technician
    • About 7 weeks at Dell’s repair depot, where the memory was replaced and the system reloaded
    • Firmware and driver updates and log collection on a Dell support call in October 2026

    None of it has held. The laptop sometimes freezes the first day after a repair, and sometimes it runs a month or two before the crashes return.

    Dell staff have said in these threads that the issue is under investigation by Microsoft and Intel and is tracked in internal KB 000492904. The only workaround we have been offered elsewhere is rolling Windows back to the March 2026 update and pausing updates, which we will not do on a business machine.

    Our case is escalated, but still has no owner or decision. We are asking Dell to replace the unit, and to consider a different model if Dell and Intel do not have a confirmed fix for the MB16250 yet.

    @DELL-Daniel V @DELL-Cares @DELL-Nat M, can you help get this case to the right team? We are happy to send our case number by private message.

    If anyone has had a fix hold for more than a couple of months, or got Dell to replace their unit, please share what worked.