I would never buy an HP computer. I’ve had a couple of those, and they were nothing but trouble. I do like HP printers, but my favorite printer is a Lexmark.
I recently obtained an HP Z420 workstation. I replaced the video card with an AMD Firepro 5100 and a cheap 7.1 sound card.
Run’n Win 7 and it’s happy as a clam!
I run 3 monitors for my desktop and could not be more pleased with it’s performance!