I tried to passively cool a 500 mHz k6-2 with the heatsink of a setup that was supposed to cool up to 1.4 gHz when the fan is on the heatsink and some arctic silver 2, but I watched the temp in the bios for about 30 minutes and it went up.....and up.....and up..... AND UP...... to about 66 C at which point the bios alarms went haywire and I shut it off. Now if I'm not mistaken, this setup shoulda worked, and I know that I had the heatsink on right. What gives?????