MotherBoard Chipset fan Advice and need help

[Vandoura]

I'm looking to replace a fan that is in this picture..

My fan is working but isn't moving, it like too much friction for the fan to move... anyway, i need to replace this before my chipset starting to melt


I believe this is Southbridge according to Cpu-z

Model is A8N-SLI Deluxe v.1.xx
http://www.newegg.com/product/product.aspx?item=N82E16813131517



Is there any fan you know that i can replace it?
Thinking about this...
http://www.newegg.com/Product/Product.aspx?Item=N82E16835116018
I have 2 Graphic card... 7800GTX
or...
http://www.newegg.com/Product/Product.aspx?Item=N82E16835103015
or...
http://www.newegg.com/Product/Product.aspx?Item=N82E16835108072

Any advice will be great. Any price range is ok too, i'm not looking for anything on the budget

Thanks