Hello, i have switched to i7 3770, dh61ww motherboard, i have installed Zotac NVIDIA GT 730 4 GB DDR3 Graphics card, 8 gb ram, 1 tb hard disk, but even if i'm playing a video on youtube, sometimes the usage cpu goes to 100%, not sure whats causing the bottleneck here.. And will switching to SDD matter for the cpu usage?