Originally Posted by kaxx
Gee, thanks. Just kidding, so much for pre-lapped HSF's. My TTBT is lapped, only to 800 grit. Temps are great, but I'm thinking about getting another mobo and putting my 3700 to good use again with the TTBT, and getting a better one for this Opty.
There are some good pre-lapped sinks out there but they are definitely not cheap. Remember the immutable law of cheapness: You can have it cheap, easy, and quick... pick any two of the three.
Case in point - look at how long it takes to properly lap a heat sink by hand. Even with tighter manufacturing tolerances and machine lapping, it still takes a significant time investment to do - in most cases, lapping takes longer than the manufacture and assembly of the sink itself. And as noted, there is no guarantee of flatness versus shiny... average consumers like shiny.
IMHO, buy a quality sink with good reviews and a proven track record and lap it yourself regardless of factory finish to ensure flatness. But of course, my opinion plus fifty cents will be enough to get you a senior cuppa coffee. :-)