Originally Posted by Sideburns
IHS is easier just to take off (if it's not epoxied)
Lapping..well...lapping my BT for about an hour and a half...on the floor...my back hurt from bending over for a week...*****. But defn worth it for a 12C drop in load, and 100Mhz extra overclock.
I don't think taking the IHS off is such an easy task on a allendale/conroe. I heard some people tried on conroe (and pentium D's I think too) and destroyed the cpu. I haven't looked into it much, but I haven't seen anyone who successfully took off the IHS on a conroe yet. I think something is actually soldered or epoxied like you said, and so it's very hard to do I guess.
And ya, it's takes some time to do lapping correctly, but totally worth it you're right! I do it to all my cpu's and hs's. I voided the warranty on my e6400 10min after I knew it was working. Tore it back out, and started sanding away on it and the BT.
Then sold it to a friend, got another e6400 that OC's a little better, and lapped it too. Then I did my e6600 and it's BT a few days later. It helped my temps some, but my last couple BT's haven't been too bad for flatness. Actually both the allendales and the conroe, haven't had too bad of surfaces either, not perfect though. I did drop a few degrees though for sure.