sorry mate, could you fix the problem? I have one question, I bought one yesterday, but I don't know how to connect to my motherboard, my Asus have 4 pins and in the fan one is blocked, just like yours. I'm really sorry but you can help me? BTW, my fan doesn't come with the extension too, I think this model doesn't have one, but they said the opposite. Excuse my bad English, Spanish is my mother tongue.