Side panel was improperly attached. Had to fight to open it. Works fine now. RAM was not fully seated. Computer beeped 4 times trying to boot. This was the reason I had to open it up. Other than that, I was pleased. I am an IT professional and specified this unit for a customer. I would HIGHLY RECOMMEND this rig to anyone. Except gamers. If you were thinking of this type of rig for gaming, then you need MUCH more experience. LOL