MB ASRock Z270M Extreme4 и Microsoft Windows 10 Home.
Проблем с Samsung SSD 960 EVO 500GB (PCI-E 3.0 x4) никаких.
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CrystalDiskMark 6.0.0 x64 (C) 2007-2017 hiyohiyo
Crystal Dew World :
https://crystalmark.info/-----------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes
Sequential Read (Q= 32,T= 1) : 3242.612 MB/s
Sequential Write (Q= 32,T= 1) : 1663.461 MB/s
Random Read 4KiB (Q= 8,T= 8) : 1082.910 MB/s [ 264382.3 IOPS]
Random Write 4KiB (Q= 8,T= 8) : 1162.053 MB/s [ 283704.3 IOPS]
Random Read 4KiB (Q= 32,T= 1) : 758.676 MB/s [ 185223.6 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 666.065 MB/s [ 162613.5 IOPS]
Random Read 4KiB (Q= 1,T= 1) : 39.821 MB/s [ 9721.9 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 238.902 MB/s [ 58325.7 IOPS]
Test : 1024 MiB [C: 49.2% (206.2/418.6 GiB)] (x3) [Interval=5 sec]
Date : 2017/11/05 21:45:54
OS : Windows 10 [10.0 Build 16299] (x64)