I bought SSD Sandisk Extreme Pro. Tests 4k-32k show slow speed. My comp details: Motherboard GA-Z67-AP-D3 with the latest Firmware FD. Driver Intel® Desktop/Workstation/Server Express Chipset SATA AHCI Controller.
Windows 7 sp1 64 bit. Antivirus is not installed.
What kind of problem can it be? And are there any ways to solve it?