I ran Server 2003 on a normal PC with no ECC ram for 9 years.
It acted as a domain controller, file server, WSUS and Norman antivirus distribution server.
I never found any corrupted files or had any serious problems with the server for 9 years.
I need a simple server now and am debating using another powerful workstation without RAID. (I just clone to a new HD every 3 years before the 1st HD dies)
The only question in my mind is ECC RAM. From my understanding it cannot be used on a PC, only on a server.
Is it needed?