And did you load the drivers back for the motherboard chips AND the video card?
Built this beast a few years ago:
AMD FX-8150 Zambezi 8-Core 3.6GHz
EVGA GTX 970 (This is a new GPU, couple months old)
Gigabyte 970A-UD3 Motherboard
8 GB (RAM)
840 EVO SSD (250 GB)(Also new, as explained below)
So for awhile now it's been slow. Upgraded to a 970 and it didn't do a whole lot. But then this week I WIPED my computer completely now I'm using an SSD for games and my OS. The computer runs amazing now in everything EXCEPT games... I have to play in low settings (like BF4, Skyrim, The Forest). It's smooth in low settings but if I bump up the graphics at all I get extreme FPS spikes and it's unplayable.