So I tried re installing Battlefield 4 to my internal hard drive and it still uses the same amount of CPU as if I was running it from my external, but I do only have 17 gigs left on my internal. Could there be any connection between the high CPU usage and my small amount of memory and should I get a new processor? My internal hard drive is 160 gigs. My external is 1TB. My processor is AMD Phenom(tm) II X4 965 Processor, 3400 Mhz, 4 Core(s), 4 Logical Processor(s)