There are now 4 bios related settings that must be disabled so that non dell video cards are seen and Dell or Microsoft won't bork you with an update. SMM Security Mitigation DISABLEDUEFI Bootpath Security DISABLEDSecure Boot OFF Windows capsule bios updates DISABLED Translation your non dell GPU will not be seen in device manager and will not display ANYTHING even in F2 bios with ALL HDD Removed and CMOS Cleared. You will think your GPU is fake or bad when nothing is wrong.  Has nothing to do with windows because linux  or no hard drives/OS at all will show the same symptoms when you try starting F2 or F12. Thought my GPU had died and only figured this out using Display port to DVI with DVI to HDMI adapter  with card removed.  I thought it was DEAD/BAD I use the adapter with onboard because most of my monitors are now either DVI or HDMI very few are actually display port. BENFEI DisplayPort to DVI [URL] DVI Male to HDMI Female [URL]    
Have a R7 with 8700K and upgraded 850 W power supply. Purchased a new MSI Radeon RX 6700 XT graphics card to upgrade my old 1060 that came with the computer. Card fits into case, I have all the correct power connectors (2 x 8 pin) When I turn computer on all a get is the Alienware screen. It gives me the option to hit F 2 for Bios or F 12 for Boot options but nothing happens if I hit any options or leave the computer alone. Installed the graphics card into a 6 yr old computer (had to clean out and replace bios battery) but the graphics card worked perfectly. I even plugged it into the PCIe x 8 slot just in case as I have read that Alienware went cheap and only installed x 8 rather than x 16. I would like to know if anyone else has had an issue or a fix, I was not planning to junk my Alienware just yet but I'm not interested in staying with my useless 1060 any longer and every other video card out there is either too long or not in stock. Thanks in Advance
Aurora R7, RX 6700 XT not working