Hi @JuddClarke,

You may try reset BIOS to factory default and install the Precision R7910 windows 7 driver pack.

Hi @JuddClarke,

Then you may have to open case to Dell official support.

Thanks,

I set the BIOS back to factory default and booted to the R7910 driver pack CD and ran it. Still the same results. :-( 

Checked on UserBenchmark, there do exist R7910 builds installed with Win10, like this and this for example.

You may try creating a Win10 64bit Installation USB Stick by the Windows 10 media creation tool from another computer and then install on R7910.

Tried Win10 yet? It may be better in hardware driver management. Even if it doesn't work either, nothing to lose ^^"

Thanks, 

It says I can only use Win 7 and Win 8. When I try to create the USB build.

Thanks, I will try to open a case but there is no warranty.

Thanks,

I built the computer as a Window 10 and then installed the Chipset and then tried to install the NIC drivers and I got the same message "no devices present". 

Two nic ports are working but the other two are not.