Could you please tell us what your hardware architecture is? Try a toolbox export in order to see if SATA is negotiating as SATA 3.
If possible, try using AHCI mode and check the RAID configuration for the controller. There seem to be a new version available for CrystalDiskMark* we were wondering if you could be kind enough and try the new version. Here is the link: CrystalDiskMark - Software - Crystal Dew World
Sorry for the late reply.
I have 3 X SATA 1TB disk in raid 5 (operating system is on this Array), the motherboard have 4 - SATA2 port and 2 -SATA3 port.
SSD is installed on SATA 3 port.
Thank you for your help.
SSD.csv.zip 4.9 K