I'm in the middle of assembling my new PC, (Yes, this late) when I noticed something odd with my CPU Cooler. While looking at the part list in the manual, I now see that I only have 2 Rubber Pads when there should be 4. I'm certain only 2 came in the box. From a illustration, it shows 4 of them being used during fan installation... Do I really need 4 Rubber Pads? Or is there a work-around for this?