yeah the two old sticks are gonna define the speed of all of them.be thankful they are working together.that doesnt always happen.looks like your ram is running at 3000mhz.
how are you measuring ram speed? unless its in the bios,most programs will show it at half the speed. ie 3200mhz will show up as 1600mhz. its still 3200mhz tho.
64gbs usually.not 200.lol.i have windows 11 installed on a 500gb drive and i have almost 400 left and i have a lot of programs installed as well. that having been said,120gigs is unheard of today.
donno what you have been told but the sub is plugged into the green port and plugged into an ac outlet.if you still have problems make sure your sound is set to default to these speakers..