Elite PC / Bad service
I bought two systems from Elite PC, and I will never buy anything from them again.
When I had trouble with one, after trying everything I could, I shipped it back to them to fix. They said "works for us - it must be your RAM". Then they charged me for the shipping and their labor and sent it back to me, still broken.
All my RAM was fine.
I took it to a local repair shop. They found that one of the processors was bad. I had it replaced (it was still under warranty) and now it works fine.
The second machine worked ok for a year or so. Recently it started acting up. This time I took it to the same local guy, who told me that the motherboard had been modified - Elite PC sold me a refurbished motherboard as new.
That pretty much sums it up.