I recently picked up a dimension 9150 with a soundcard in it. it came with 2 GB of ram and a filthy gpu without any stickers on it or anything. I wanted to install windows 10 on it and check the full specs. First I took out the two 1 GB dimms and put 4 1GB dimms in. I started it up and the mobo started beeping. I then inserted a new gpu and when I started it up the cpu fan started blowing alot harder and my monitor didn't receive any signal, I tried a nvidia 8600gt and a 9500 gt. Is it not possible to upgrade this pc or am I doing something wrong?