Hey I had two old computer I ripped apart and spared what I could. So I found a 5cm x 5cm Vantec HSF on an AMD K6. My hard drive is pretty hot so I was wondering if I could just lay the heatsink on top of it w/o thermal paste. I also have a 7cm x 5cm HS w/o a fan. Is it ok to lay these on the HD or will it hurt it?