eDP screen with LVDS connector

Anyone here understand eDP vs LVDS?

I have a Dell Inspiron 5720 with a motherboard that has a 40 pin connector clearly marked as LVDS on the PCB. But the part number of the LCD screen (LP173WD1) indicates it is an eDP screen. The cable is 40 pin and connects right up.

Furthermore, I happen to have a second LCD (B173RW01) which indicates it is LVDS, and it too connects right up and seems to work without issue.

I am confused because:

• I thought eDP was 30 pin
• I assumed if the MB clearly expects LVDS, you can't run a eDP screen
• I thought you cannot swap eDP and LVDS screens like I described above

I read somewhere ( here actually) that you can't just swap because of potential overheat issues. Overhead of what, the GPU? Even more confusing, I read somewhere that the signal is completely different, and swapping displays should not "just work". So either this is all bogus and there is compatibility (as long as the connectors match up?), or something is really fishy about my hardware (like, part numbers are lying, and everything is LVDS, not eDP at all???).

 

One is to follow the manufacture parts manual when doing upgrades or switching to prevent problems and if you need to know more about it you should contact Dell support and ask them about those differences. Anyone attempting to say otherwise can say much but only Dell can say one way or the other to update that information.