Thanks for the help.  I switched to another cable and another SATA connector on the MB and it worked.  Will do some troubleshooting later to see if it's the cable or MB port. To close this out I tried it on SATA port 0, the one that didn't work before, and it works.  So seems the cable was bad.  First time I've had a bad component in 20 years. Glad I tried a different cable before messing with the software for hours.  Or days. 
I'm back. Dell 7050, Win 10 Pro 64 bit, bios UEFI drive c:  SSD WD 1TB SN750 black (windows drive) drive x:  HDD WD 1TB 7200 rpm (data drive) I took the 1TB 7200 rpm hard drive out of my old machine and plugged it into the Dell 7050 using SATA connector 0. When I fired her up all I got was a black screen.  The HDD only has pictures, word docs. etc. on it.   I assume it's formatted with MBR table as I built that computer like 5 years ago.  Is that why I get the black screen? With the HDD not plugged in it boots fine off my M2 NMVE SSD (thanks to tech brad).          
Dell 7050 old drive?