ECC is error checking, there is an extra chip on the ram that does this and it's only really useful for server machines. Also ECC runs slower. Non-ECC has better performance and is used in most...
Engine Computer Control System
- Also regarding Nissan 720 p/u Z24, ECCS can stand for Electronic Concentrated Control System ( I know 85's have this & 84 Calif. mod not sure what other years)....