4 ms·

Disappointing that with all of this power available, ECC is only supported on W680 motherboards which are impossible to find from 1st party sellers.

boplicity 4y ago
For someone who just doesn't know -- what are the useful use cases for ECC? Who benefits from it?
- kahrl 4y ago
  Nuclear engineers and anyone else who want bragging rights.
- Espressosaurus 4y ago
  You benefit from cosmic rays not randomly corrupting your data in memory.
- deleted 4y ago
  [deleted]
- 7speter 4y ago
  Theres an actual phenomenon known as bitrot, where over time, copies and storage, files degrade by having their bits flip. This can apparently accelerate during the process of a file being transferred (whether from the internet to a drive or ram or to a drive or vice versa), bits can be misread because of the speed and breadth they come in at. Ecc prevents this.
  - trynumber9 4y ago
    Unfortunately, it doesn't prevent it but reduces the chance. Even with ECC memory regular data integrity checks (or scrubs) are vital for detecting bit rot.
    - sliken 4y ago
      True, but those data integrity checks are built into the motherboard/BIOS and happen without any user (or OS) intervention.
- uni_rule 4y ago
  Mostly hosting but many find the lockout of it to "workstation" chipsets annoyingly arbitrary particularly when many off-the-shelf AM4 motherboards can use ECC memory without issue. The inability to use it elsewhere is comparatively arbitrary.
- sliken 4y ago
  Part of it is to track and fix the occasional bit flip. Said flips can cause data corruption, crashing processes, and crashing machines. However it's also very useful to just know when a particular failure causes issues. So you know that the 3rd of 4 dimms died, instead of tracking down frequent crashed that might be power supply, motherboard, cpu, any dimm, etc. Linus Torvalds recently lost time thinking he had an unreliable kernel when a 2+ year old dimm just went bad.
LegitShady 4y ago
Ecc is not compatible with Intels k series overclocking
- PaulWaldman 4y ago
  It looks like ECC is supported on K series processors according to Intel Ark. https://ark.intel.com/content/www/us/en/ark/products/230496/intel-core-i913900k-processor-36m-cache-up-to-5-80-ghz.html https://ark.intel.com/content/www/us/en/ark/products/230496/...
  - LegitShady 4y ago
    It won't overclock but it will function
fomine3 4y ago
Note that all DDR5 chip supports limited error correction, it's better than nothing.

boplicity 4y ago

For someone who just doesn't know -- what are the useful use cases for ECC? Who benefits from it?

kahrl 4y ago
Nuclear engineers and anyone else who want bragging rights.
Espressosaurus 4y ago
You benefit from cosmic rays not randomly corrupting your data in memory.
deleted 4y ago
[deleted]
7speter 4y ago
Theres an actual phenomenon known as bitrot, where over time, copies and storage, files degrade by having their bits flip. This can apparently accelerate during the process of a file being transferred (whether from the internet to a drive or ram or to a drive or vice versa), bits can be misread because of the speed and breadth they come in at. Ecc prevents this.
- trynumber9 4y ago
  Unfortunately, it doesn't prevent it but reduces the chance. Even with ECC memory regular data integrity checks (or scrubs) are vital for detecting bit rot.
  - sliken 4y ago
    True, but those data integrity checks are built into the motherboard/BIOS and happen without any user (or OS) intervention.
uni_rule 4y ago
Mostly hosting but many find the lockout of it to "workstation" chipsets annoyingly arbitrary particularly when many off-the-shelf AM4 motherboards can use ECC memory without issue. The inability to use it elsewhere is comparatively arbitrary.
sliken 4y ago
Part of it is to track and fix the occasional bit flip. Said flips can cause data corruption, crashing processes, and crashing machines. However it's also very useful to just know when a particular failure causes issues. So you know that the 3rd of 4 dimms died, instead of tracking down frequent crashed that might be power supply, motherboard, cpu, any dimm, etc. Linus Torvalds recently lost time thinking he had an unreliable kernel when a 2+ year old dimm just went bad.

LegitShady 4y ago

Ecc is not compatible with Intels k series overclocking

PaulWaldman 4y ago
It looks like ECC is supported on K series processors according to Intel Ark. https://ark.intel.com/content/www/us/en/ark/products/230496/intel-core-i913900k-processor-36m-cache-up-to-5-80-ghz.html https://ark.intel.com/content/www/us/en/ark/products/230496/...
- LegitShady 4y ago
  It won't overclock but it will function

fomine3 4y ago

Note that all DDR5 chip supports limited error correction, it's better than nothing.