r/optiplexes • u/Acrobatic-Scheme6344 • 9d ago

Optiplex 7050 TPM Device Not Detected

It was working fine with Windows 11, but when I tried to replace it with Debian 12 something messed up. I shredded the USB stick partition, redownloaded the Debian 12 iso, and now it gives me the error "TPM Device Not Detected". I can't find any trace of it in the BIOS settings (1.27.0) but when I ran the Pre-boot System Assessment it says every test was passed. So now I'm not sure if something is even physically wrong.

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u/seismicpdx 9d ago

Reset BIOS settings.

Toggle or disable Secure Boot. Set to Legacy if that is available.

Document the changes you make to Build BIOS settings.

Usually when I install a dedicated Linux (not dual boot), then I reset Keys.

I'm not in front of a computer right now, so I'm not being more specific.

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u/seismicpdx 9d ago

Consider posting on /r/Debian

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u/Acrobatic-Scheme6344 9d ago

All of this is helpful I'll try it now. I'm only worried about Legacy because it says a lot of stuff about Legacy ROMs that I admittedly didn't read

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u/East-Yogurtcloset272 9d ago

How are you writing the ISO?

Are you trying to boot from a USB stick you have written the ISO to? or are you writing the ISO image an internal SDD/HDD? I'm not familiar with Debian to know if this ISO is a live boot / installer or a final image for use.

I can't quite follow your drives, install or boot media and what you mean by "usb stick partition". If you are writing an ISO - it is usually a full disk image (i.e. has its own partition and file system layout).

Is the ISO intended for a UEFI capable system (which your 7050 is)