正常係全部 一樣capacity 如果唔係 個system 會沒左個 stability base on:
" if you install the same brand of ram, the same memory speed, same timing and latency.... it still might not work as it will leave the system unstable. You might get it to start up and running but than after 30 or so minutes it will start to crash on you and wont run stable." refer: (http://answers.yahoo.com/question/index?qid=20100523062226AAUjfmU) <~ I know the source is not reliable but this is a general computing knowledge people should know that.