Ssd 840 poor preformance




Your motherboard has 8 SATA 3 (6Gb/s) ports.
Double-check that the SSD is connected to one of the 6 AMD 6Gb/s ports, not to one of the 2 ASMedia 6Gb/s ports.

Connect the SSD to port SATA6G_1 if it is not there already and retest.
See page 1-28 of your motherboard manual for the location of the port.