I got my new opteron 170 yesterday. I got my liquid cooling today. I had the hardest time in the world prying off the OEM heatsink/fan. It actually pulled the cpu out of the socket. Then Im sitting there trying to pull off that damn cpu from the heatsink and its not budging. Finally after trying really hard to be careful the cpu went flying into my case. I was like ow ******, but luckily it still works just fine. It got me thinking though how the hell am I supposed to carefully take off this waterblock? The factory heatsink I left alone as far as adding thermal compound because it was already on there. My new waterblock I tried to not put too much on (AS5). I hope i never have to deal with that again.