Help with new build--things not in the manual...

[joegoersch]

Any help would be appreciated. Building a computer with Metis Plus and Rog Strix B450-I. Some things are not explained in case or Mobo manual.

1) There is a (typical) 4 pin connector for the CPU cooler, but next to it and not in the manual is a 5 pin (one row of 3 and another row of 3 with middle pin missing) . What is that connector for ?

2) Coming off the case fan is the usual 3 pin power supply, but also a little white and blue switch. What is it and where do I put it ?

Thanks !
[url=https://drive.google.com/file/d/1swl9RQDKfD0j7Dy30k0r0pAwX0E4Yjk8/view?usp=sharing]http://[/url]

 

[joegoersch]

here a picture of blue switch
https://drive.google.com/file/d/1uQqHFcJAnRybzOJrixMPLxaed9yQxLol/view?usp=sharing

 

[joegoersch]

and a picture of the connecto (arrow)
https://drive.google.com/file/d/1swl9RQDKfD0j7Dy30k0r0pAwX0E4Yjk8/view?usp=sharing