I'm currently diagnosing my brothers pc due to it having so many bsod's and ran into something weird. I swapped my RAM sticks into his pc and vice versa as we have same RAM sticks with same product code and everything (F4-3200C16D-16GTZR). With my RAM in my pc Windows shows 3200MHz as ram speed, but when I put my brothers RAM into my pc it only shows 1600MHz. Exact same deal on my brothers pc, my ram shows 3200MHz and his shows 1600MHz. Am i missing something, how is this possible?