One of my two drives recently failed, so I'm currently left with a single 2TB Kingston KC3000 Gen4 NVMe SSD. Would installing the operating system on it—possibly on its own partition—cause noticeably more wear because of background activity and frequent small writes? I'm considering waiting for a sale on a second 1TB Gen4 SSD rather than buying a SATA drive just for the OS. How much would using the KC3000 this way affect its lifespan or performance?
4 Answers
Technically, putting the OS on the drive adds some writes, but for normal desktop use the difference is usually negligible. SSDs are designed for this kind of workload, and the KC3000’s TLC flash and DRAM cache make it a solid choice. I’d use the drive normally and wait for a good deal instead of buying another drive purely to protect it.
A larger SSD also has more flash cells available for wear leveling, so the 2TB model has an advantage over a smaller drive in that respect. Just leave some free space, keep backups of anything important, and monitor its SMART health occasionally. A second drive can be useful for storage or backups, but it isn’t necessary just to host the OS.
Real-world usage suggests you have little to worry about. An older SATA SSD used for an operating system and games can still report excellent health after many years. Unless you’re doing unusually heavy workloads such as constant video scratch work or large-scale data processing, everyday updates, browser caches, and applications won’t wear out a quality 2TB SSD quickly.
Also, don’t choose a drive based only on advertised Gen4 sequential speeds. Booting an operating system and launching everyday applications rarely benefits much from the difference between a good SATA SSD and a fast Gen4 NVMe drive. Waiting for a reasonably priced second NVMe drive makes sense, but there’s no urgent need to move the OS off the KC3000.
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