My Windows 11 PC becomes almost completely unresponsive whenever Steam or Epic applies a large game update, or when I extract a big archive with WinRAR or 7-Zip. Task Manager shows the NVMe drive at 100% active time, and 20–30 GB updates can take hours, even though normal smaller tasks work fine.
The system has a Ryzen 7 9800X3D, RTX 5070 Ti, 32 GB of DDR5-6000 memory, and a single 1 TB M.2 SSD identified by Windows as an SK900-1T. The drive is about 81% full, with roughly 180 GB available. CrystalDiskInfo reports 89% health, about 8% NAND wear, and no SMART errors.
CrystalDiskMark shows around 1550 MB/s sequential reads, but sequential write performance can fall to approximately 75 MB/s on some tests. During a smaller 2.4 GB update, the drive reached about 54°C while maintaining roughly 900+ MB/s writes. The problem became noticeable after the first summer, so I am also wondering whether sustained heat from the GPU could be involved. The SSD has a motherboard heatsink over it.
Could this simply be a budget DRAM-less SSD exhausting its SLC cache, or should I investigate thermal throttling, Windows corruption, drive configuration, or something else? Would replacing it with a higher-end NVMe drive with dedicated DRAM likely solve the freezes, and what tests should I run before buying new hardware?
4 Answers
It is also worth checking Windows system files in case part of the freezing is software-related. Open Command Prompt as administrator and run `sfc /scannow`, then reboot and test again. This will not fix a physically inadequate SSD, but it can rule out damaged Windows files as a contributing problem.
The drive may be struggling with sustained writes after its faster cache is exhausted, especially since Windows is running from the same device. Check the SSD manufacturer's specifications and monitor its temperature, controller activity, and actual write speed during a full-size transfer. If the drive continues dropping to hard-drive-like speeds and stalls the whole system, a better-quality NVMe SSD would likely be a practical fix, though testing airflow first is inexpensive.
Before replacing the drive, try improving airflow as a quick temperature check. Remove the side panel temporarily and aim a case fan directly at the M.2 area while repeating the same workload. If the behavior changes significantly, airflow or heat is worth investigating. If it does not, thermal throttling becomes less likely.
Leaving more free space may help, since SSD write performance can suffer when the drive is getting full. Try freeing a substantial amount of storage and retest. Also make sure important files are backed up before changing BIOS, partitions, or replacing the drive.
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