I was instructed to pull and retain all HDDs, RAM, and video for other projects. I ran the unit for a couple of days with no problem, then got to work on it. The hard drive caddies are still in the unit. 

The photo of the label will tell you more than I can but to repeat, this unit has no RAM, HDD, VIdeo, or OS. 

I ship fast and at actual cost. This will weigh about 40 pounds and measures about 24x24x12