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And again... another non-unique thread. There's been fifteen threads where this question has been answered. I'm getting very annoyed, even if you did search the forum. Please, just look a little harder before creating a new thread.
PS... this is another reason for a hardware sub-forum.
That site is so bad I'm not even going to try to start pointing something out about every sentence.
Let me say it's got some blatant lies and misrepresentations (possibly not intentional), in addition to horrible writing.
Bookmark it (or download the text, in case it gets changed) and come back to it in a year. It will provide immense entertainment!
Also, how about using the beginner's forum? It's a great place to ask for clarification if you're new and don't know something.