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seasmurph

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seasmurph

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March 19th, 2021 21:00

T3620 No display after enabling secure boot. Reset BIOS?

Hi,

So I made the mistake of enabling secure boot while trying to get an additional encrypted SSD to boot.

I now have no display output. I've read about a hundred posts and tried removing the CMOS and waiting for a while before putting it back in, still no display output from the graphics card. I've tried removing the Graphics card and using the HDMI/Display ports on the motherboard  located under a sticker labelled "Non-active ports" with no luck. I believe this is because it's an xeon version which apparently have no integrated graphics.

What are my next steps? I literally brought this 3 days ago and obviously it being my mistake I can't send it back. My thoughts are remove the the graphics card, purchase a HD15(/VGA)-HDMI cable and attempt to get a display out via the serial connector and revert my changes or reset/recover the BIOS via an external USB drive.

Will there be a display output via the graphics card while attempting to reset the bios via external usb? Does anyone know the key combinations to use to do it blind so to speak (with no display)? I've searched and found nothing.

Posting here is a last resort so I'm hoping someone knows something else it's going to be an expensive mistake lol

 

  • seasmurph

    1 Rookie

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    Posted March 20th, 2021 01:00

    If there's anyone with a T3620 with bios revision 2.16.2 (or later) and could record something like this:

    https://www.youtube.com/watch?v=YcxxMwyw_T4

    but from pressing the power button.That would be VERY appreciated

  • mazzinia_

    6 Operator

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    Posted March 22nd, 2021 03:00

    Have you tried to contact ProSupport ?

    If you just purchased it, you would be entitled to their help

  • speedstep

    11 Legend

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    Posted March 22nd, 2021 04:00

    Secure boot doesn't post for non dell video cards. This is true for ATI as well as NVIDIA and other vendors.

    https://nvidia.custhelp.com/app/answers/detail/a_id/3156/

    When an after-market graphics card is installed into a motherboard with UEFI enabled in the system BIOS, or if the system is a certified Windows PC with Secure Boot enabled, the system may not boot.

     

     

  • Andy812

    2 Intern

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    Posted April 4th, 2021 23:00

    1. Secure boot is designed for not-booting when the system was tampered. And that is exactly what you did.

    2. OS recovery option will boot to bios after N-failures, so it is not necessary battery-resetting BIOS if you have enabled that option.

    3. After battery, or OS-recovery mode, the non-DELL GPU will be recognized by board, the display will light up... It may. I had success with Gigabyte GTX 780ti updated with its UEFI bios. I had no success with nVIDIA Quadro FX 800. It has no UEFI code in its bios. But I may have been not patent enough to wait for the "recovery" boot...

    4 Quadro RTX 4000 supplied with Dell WSs seems to be unrelated to Dell. These are just nVidia boards. And those boards boot well.

  • Chino de Oro

    11 Legend

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    Posted April 5th, 2021 15:00

    You should contact Dell support as suggested by another member on here.  Practically most problems can be resolved if you know the cause.  I have no information that could help with your issue but for the sake of learning, I just ran some test to verify the information given by others on here.  I pulled a HP stock graphics card GTX 1070 from a HP Omen desktop and I installed it in a Dell Precision 5810 tower.  With secure boot enable, the system posted just fine.  Shut it down and put back the Quadro M4000, It is running without any problem.

    With the result, less likely that your graphics card was the cause.  While waiting for Dell support, have you try booting without your SSD?  If not, install your graphics card back on and removing all storage cables and SSD.  Hopefully you can get your display back and restore your BIOS settings.

     

     

     

  • 3047

    0

    Posted May 7th, 2021 05:00

    I am using zeon processor and 3rd party GPU.

    I have changed the processor with intelligence and access to display successfuly and in bios settings DISABLE secure boot options and then switched back to zeon processor and everything is workable.

  • pyfis

    1 Message

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    Posted May 9th, 2021 20:00

    Are you saying that you removed and re-installed the processor and you were able to get to the UEFI screen?

  • 2932

    0

    Posted May 9th, 2021 23:00

    Yes but bot the same processor.

    1-Removed zeon processor 

    2-Plaved Intel processor 

    3-Access the BIOS display and settings then "disable secure boot options "

    4-Revert back to zeon processor 

    That's fine

  • mazzinia_

    6 Operator

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    Posted May 10th, 2021 03:00

    Shouldn't there be a way to do this without using a different cpu ?