After 4 hours of fighting with the SataIII SSD, it turned out that the sata cable was to blame.
I tested 3 different cables
1st - sometimes the disk disappeared from the system or the speed testing programs (hdtune, crystal disk info, as ssd) did not detect the disk or delivered a crash, even MyComputer / manage / disks got stuck, as the system saw the disk, the speed was from 5 up to 70 MBs.
2nd - speed 350 read, 250 write, but not all programmers saw the disk.
3rd - read 500, write 480 (same as benchmarks on the network for this model)
How to choose sata cables for sata iii disk?
I tested 3 different cables
1st - sometimes the disk disappeared from the system or the speed testing programs (hdtune, crystal disk info, as ssd) did not detect the disk or delivered a crash, even MyComputer / manage / disks got stuck, as the system saw the disk, the speed was from 5 up to 70 MBs.
2nd - speed 350 read, 250 write, but not all programmers saw the disk.
3rd - read 500, write 480 (same as benchmarks on the network for this model)
How to choose sata cables for sata iii disk?