3 Reasons Not to Pay Double for ECC RAM on a Secondary Plex Server
Plex doesn’t need it ECC RAM corrects single-bit memory errors, which matters for financial servers or databases. For streaming video, a bit flip might cause a tiny artifact in one frame that nobody will ever see.
The risk is minimal on a secondary server A secondary Plex server with few users already has low stakes. Even less chance of any noticeable issue.
Spend the money on something useful instead That extra cash is better spent on more storage, a faster CPU, or a bigger SSD for metadata. Your Plex library will benefit far more from a bigger hard drive than from error-correcting RAM that goes completely unused.