I have a desktop with have this components : Cpu- amd a8 6600k gpu- asus radeon r7 250x 1gb ddr5 Ram- corsair 4gb 1600mhz psu-corsair vs550 HDD- seagate st3320310cs Sometimes he gets really slow surfing on internet when I was installing something or copying files , so I belive the problem is the HDD because of the 5400 rpm and only 8mb of cache . So i ask for the opinion of someone who can help me with this please ! I will be very apreaciated . Thanks in advance .