I had a $3000 hi-end custom liquid-cooling machine brought in to me 3 weeks after building. The guy that built it had to replace the motherboard and ram and it was still freezing up. The computer had 32GB or 64GB of ram with a SSD Hard drive, the guy couldn't figure out the issue. It would boot up in seconds, work really fast then would freeze and not work unless you manually shut down the computer.