Weird HD problem.

[0933]

I have 2 sunon case fans and a fan control 5 1/4 bay insert. I have discovered that when I up the fan speed my hd acts strange and takes longer to load things. Here are some pics I took. I would also like to note that I am not sure that these sunon fans were ment to be case fans.

http://www.imagelink.org/id5641.jpg --- with fans full speed.
http://www.imagelink.org/id5640.jpg --- with fans low speed.
http://www.imagelink.org/id5639.jpg --- with fans off.

Thanks.