Red LED light on computer case

[John Van Valkenburg]

I recently moved my computer when I moved homes. After moving, my computer is giving a red LED light on the computer case indicating an error or warning I believe. Everything appears to be fine though. Temps are good and it runs fine. It just has that red LED warning light. How can I check what is wrong with it or if that's a warning or what. I would assume it is coming from the mobo.

Now this part list isnt exact in that the case and HDD are different, but I don't think that would matter.

https://pcpartpicker.com/user/definitelynothacking/saved/#view=K9yt6h

If it matters I have the Bitfenix aurora case. Looks just like this one.
https://www.tomshardware.com/reviews/bitfenix-aurora-tempered-tinted-glass-atx-case,4800.html

Edit: I did check all the connections I could. everything appeared to be connected inside and seated correctly.

 

[CountMike]

Red light is usually disk activity indicator.

 

[John Van Valkenburg]

It wasn't doing this before though. What disk activity would start after moving locations? No software changes or anything so if it started since I moved I feel like it has to be an error from something moving or coming lose, but I don't know what.