I went to pull the heatsink on this processor to see what it was. I knew it was a 478 Pentium 4, but I wasn't sure which one. It was in a Gateway with a blown motherboard(every cap had blown on the board). I wasn't too concerned about killing the processor, just curious what it was before I tossed the machine in the dumpster. Anyway, I pulled the heatsink and the CPU came with it. Normally I'd twist the heatsink first, but Gateway's lovely design left absolutely no room to twist the heatsink. So I expected the processor to come with the heatsinks. However, what I didn't expect was that the processor would be cemented totally to the heatsink! I didn't have a heatgun to warm the processor up so I could pop it off the heatsink properly, so I just took a flathead screwdriver and started prying. Suddenly it popped and I though I had it... Then I pulled the processor the rest of the way off and to my surprise the IHS had popped off! I've never seen thermal compound that had a stronger bond than the epoxy Intel uses to seal the IHS on. Anyway, in the end I found out it was just a piece of shit 1.8GHz Northwood. So no loss if it is dead, but I think I'll make a keychain out of the IHS(I did eventually get it off after soaking it in goo gone). The keychain is probably worth more to me than the processor.