|Actually to answer your question. "but what does it indicate if the ram slots are empty and there is no signal?"|
It would be how the computer maker and bios writer decided to write the beep code. Like I said. No ram forces the oldest pre-post tests in most computers to fail. That fail would be a very simple beep code if it existed. Some are constant tone or constant beep. I doubt it would ever show something like a 2-3 or 4-5-6 code or such. You may also have an led number or the monitor might fail on a 100 number. You have to see the owners manual.
Playing to the angels
Les Paul (1915-2009)