> There is roughly 3% chance of error in RAM per DIMM per year. That doesn't justify buying ECC if you have just one personal computer to worry about.
How do you make that leap?
How do you make that leap?
However the consumer market has long decided to settle for ECC nowhere and cheap everywhere.
ECC hardware comes at premium option that can easily be +100%. You need support in the memory, the motherboard and the CPU.
Given the price difference, personal computers will have to live with the memory errors. People will not pay double for their computers. Manufacturers will not sacrifice their margin while they can segment the market and make a ton of money off ECC.
There are also reports of BIOS support in some boards which don't have ECC advertised. And you can try to enable it in the OS even without BIOS support, though some level of hardware support is still necessary. As Linux documentation puts it: "may cause unknown side effects" :)
Or do you mean that if you want exactly 8GB then it's hard to find a pair of 4GB DDR4 ECC modules? Well, just get 2x8GB if you are a performance nut.
I am guessing it's because, if RAM errors increase linearly with the number of computers, then RAM errors will be a greater and greater proportion of total errors. This assumes other kinds of errors don't scale linearly. Someone looking through logs is looking for errors, they'd like to find fixable logic errors, not inevitable RAM errors.
Your NAS should better have it, though.