Question Wireless network/Bluetooth adapter

[Gunker]

After I recently switched computer cases I noticed that I get a very weak signal from the internet and I don’t have Bluetooth anymore. Could these things have been built into my old case?

 

[rgd1101]

full system spec? of the old and new?

 

[Gunker]

full system spec? of the old and new?

Nothing new was added, just switched cases
Specs:
i7 7700
GTX 1070
Odense 2k motherboard
16 GB Ram.
https://www.amazon.com/HP-870-213w-...1070&qid=1553441241&s=gateway&sr=8-3-fkmrnull
It was a prebuilt PC at first that I moved.

 

[rgd1101]

with the old prebuilt , there should be some antenna connected to the motherboard.