I'm getting a Intel Core 2 Quad Q8400 processor to replace my Pentium Dual core E5300 and i was wondering if i could use the pentium heatsink and fan on the Core 2 Quad. Is the heatsink and fan good enough to cool the quad core processor. Also how high should a cpu temperature be before it gets to hot. I ask because i just installed speedfan and in the taskbar it says the temperature is 62 degress celsius but when i scroll over it the popup has me confused about which temperature i should be worried about.