My last home server was a core i7 with 16gb of non-ecc. I noticed some PostgreSQL corruption, which was odd to me. Then I noticed the most of my compressed backups failed to decompress all the way, due to some corruption. It'd make a backup just fine but they couldn't verify. It had been going on silently for weeks or maybe months before I noticed. Turned out to be a bad memory chip. I have a Xeon with ecc now.