EDIT 8/31/2021None of the ram would work. And than yesterday it stopped booting altogether so i have just purchased a replacement mobo. Best advice is to avoid this. If I were a basic consumer with no tec knowledge I would have tossed this out. Never have I had this many issues with any PC.EDIT 8/18/2021I dropped the stars to two because of ongoing issues. I brlieve the motherboard is bad. As mentioned in the original review the ram stopped working but moving to another slot seemed to work. But only for a day or so. The first replacement ram did nothing. It works in another desktop though. So I bought another type of ram closest I could find to what is in this. Nothing but beeps. So the only ram that will work is one of the original ram that came with it. This is kind of pointless for my use. I beleve the mobo is bad, but hp does not support this as it comes up as an old pc whose support ended a long time ago. If amazon wants to send me a new mobo I will change my rating. If not I am going to drop it down to one star.ORIGINAL REVIEWOut of the box there was a ram issue but i moved them into the other slots and they read fine. But than after a few months the ram stopped working. One of them went kaput. I have ordered new ram so we will see how that goes.USB issues seem to abound. Sometimes it works, sometime it doesn't. The defeats my reason for getting it because I wanted to use external drives. Now I did get get a 3.0 internal card, but the same thing happens with the connections to that as well.I will update when something changes.