B550-Plus mobo, constant USB disconnects

[gdaviez]

Environment

win 10 hom,e, also tried win 11 scrpy 2.7 samsung s8s/notes android version 9, some higher

Been running 50+ samsungs on my old computer, started to get laggy so i recently upgraded to a b550-plus mobo, RTX 4090, lots of ram, good PSU etc

Now im having issues getting the phones to connect, a lot of the time they wont be recognized so dont show on adb devices, then when i do eventually get most connected, around 15-20 of the phones will then go into "offline" until i do "adb reconnect offline" iv tried all the USB ports, Iv tried one hub at a time and it seems to happen no matter what, iv also tried different HUBs and different cables.

It feels to me like my USB ports arent holding power and thats forcing the phones to go into offline and sometimes not even be recognized, im giving it one last shot at formatting because iv been at this for days now, im posting on here just in the hope that somebody has had a similar issue or knows of any issues with this mobo, I have seen some posts online about things not charging well from this mobo so im thinking it might just be a mobo issue

last ditch attempt before i send the computer back, hopefully somebody has experience!