Dell Precision 7520 blue screen and won't boot anymore

Hello all,

I am wondering if anyone might be able to help or if this machine is just toast. I was using it today at my desk connected to a E-Dock and all of a sudden it did a blue screen of death and rebooted. Since then the machine will no longer boot up anymore. I always get a blue screen of death but with different errors messages. Sometimes it is the irq_not_less_or_equal message, but I also get ones about kmode and another that I can't remember at this time. It isn't consistent to which error I get.

Since this started happening, I have tried resetting the bios back to defaults, tried to remove all non-essential hardware, booting to installation media (usb windows installer), running the built in diagnostics (which came back fine) and none of what I have tried has helped so far. I always keep getting random different BSOD error messages.

I have even tried removing the hard drive, ssd, and only kept in one stick of memory (came with two and tried each individually) and booted to just the installer usb for windows 10 64 bit (latest release just created from recovery tool and boots other machines just fine) and with no luck. I keep getting the BSOD error messages. 

The machine is also already on the latest version of bios. When I boot the computer to just the BIOS is seems to be stable but can not boot into windows at all without error message.

I am trying the last thing I can think of and keeping the CMOS battery disconnected for a while. But if that doesn't work, I am fresh out of ideas. Is this thing shot that I need to send it back or is there anything someone can recommend?