I'm still building my first PC. It's all installed and all I need now is the video card. Today, I ran the box and everything went real smooth. Of course, ill not know how smooth till i get the graphics card. Anyway... i'm still worried about one thing. When I installed the heatsink, I had left a tiny bit of the edge of my Athlon XP uncovered by the heatsink. It's not a lot... just a tiny fraction (about a 50th of an inch). I dont want to remove everything again now unles i really have to. So, do i have to cover the entire thing or is that little bit of the CPU PCB being exposed ok?