Installing Big Sur on the Dell Optiplex 7040 Micro

[trs96]

I've also tried modifying from other ppl's EFI (for SFF and MT), no success.
I've given up using Dell micro since some ppl mentioned that we need to modify the BIOS for full power management functionality.

CFG lock in the BIOS needs to be unlocked. There are two ways to do that. The easier way is to make two changes to the config.plist. For the BIOS mod you'd need to use something like ModGRUBShell.efi to change the offset for the CFG lock.

 

[Girotto]

CFG lock in the BIOS needs to be unlocked. There are two ways to do that. The easier way is to make two changes to the config.plist. For the BIOS mod you'd need to use something like ModGRUBShell.efi to change the offset for the CFG lock.

View attachment 524992

Hummm,
These two made pass that last line, I could see the system passing and trying to load drivers but gave me a different KP.

I'll capture after work and submit to this thread.

Thanks for now.

 

[moisesmv]

I'm trying to install BigSur on an Optiplex 7040 micro, do you happen to know were I could find all these values for the 7040?

Thanks

Hi, i've install but audio not work. with this EFI from github.