We keep several of these PCs on the shelf for automating laboratory instrumentation so they don't always get tested immediately. This one would not boot at all and just gave what I assume are "post codes" indicating that the problem is in the processor or motherboard.Problems happen, but when we tried contacting the support group, we got zero response. Now, after waiting for something to come back from them, we're well outside of the return window. I've learned my lesson. If I'm going to get eBay-level quality and support, I'll just go there next time so I get eBay-level pricing as well.