b450m steel leged

hello, i want to get a nvme ssd i know some ssds are not compatible with my asrock b450m steel legend so first is klevv cras c710 or/and c715 compatible or not? also i already have a sata ssd with os installed will that be a problem if i used the ultra m2-1 without os boot in it? thanks

So my mouse has been having issues for a while now and I'm not sure what to do. Every couple of minutes, the mouse cursor will stop moving for a split second. This gets annoying really quickly and messes me up while gaming or scrolling. The following are some things that I have tried in order...

I bought a brand new b450m steel legend, when I went to build my pc I could not get the motherboard to turn on (only the leds would turn on). I thought I was doing something wrong so I decided to pay for a Technician to build my pc, but same thing happened and he could not get it to turn on...