I'm going to change my old rig except my gpu, my specs were i5 4460, 16gb RAM 1600mhz DDR3, Mobo Gigabyte something, and an RX 480 8GB ROG Strix.
My new one:
AMD R7 2700
MOBO B450 Aorus Elite AM4 ATX
2x8 ADATA XPG 3000MHZ DDR4
PSU GIGABYTE GP-B700H 700W 80+ BRONZE
CASE DEEPCOOL MATREXX 50
SSD 120 GB ADDLINK
My new one:
AMD R7 2700
MOBO B450 Aorus Elite AM4 ATX
2x8 ADATA XPG 3000MHZ DDR4
PSU GIGABYTE GP-B700H 700W 80+ BRONZE
CASE DEEPCOOL MATREXX 50
SSD 120 GB ADDLINK