Need some help upgrading this PC I got from craigslist So i got this pc off of craigslist for 600$ has 16gb ram i5-4670k r9 390 no clue on the mobo 128gb older ssd and 1tb hard drive. What is the first component i should replace to upgrade it. Im considering the ssd if the price ever falls or the ram, partially because im certain one of them is causing my random bsods.