To let those helping me know, I got my computer working again. Apparently, one of the RAM cards had become dislodged when I moved the computer. The diagnostic LEDs on the front indicated that to the tech. After I reseated all the cards the video display returned. Thanks for everyone’s help.
No PC speaker for error beep codes? I don’t know about any LEDs.
They have little numbers on the front of the computer. I went to the shop and plugged things up and the motors are working!!! I had to remove the new graphics card and reinstall some software but everything seems okay. I still have to hook up the spindle and VFD to the 220 v outlet, but so far everything is working. What a relief!