Just in-case someone else is interested in seeing CrazyPC's lapping work, I snapped a couple pictures of the Ultima-90I I had CrazyPC lap for me. I haven't owned a Thermalright heatsink since the Socket-A days, so I took notice of the warnings of the bases frequently being concave or convex out of the box. Since it's hard to tell from these photos: the base is very flat throughout the center area; I don't have any way of numerically testing the flatness, but I'm satisfied.
There is something lacking cosmetically, but nothing I'm going to whine about too much.
Out of the package, wrapped in plastic and bit dirty:
Unwrapped, still dirty:
Cleaned up with some alcohol (this shot was seemingly impossible with flash, but I'm still too amateurish with my camera to improve it much; I did not want to touch up the shot at all on my computer besides cropping and scaling):
I don't have a motherboard or CPU for this heatsink yet (next month some time I'll have the money I hope) and obviously I can't do a before and after comparison of any kind. For what it's worth: delivery was quick and the price was as good as I could hope with the lapping surcharge (better than doing the work myself ). Hopefully one of you finds this useful .
There is something lacking cosmetically, but nothing I'm going to whine about too much.
Out of the package, wrapped in plastic and bit dirty:
Unwrapped, still dirty:
Cleaned up with some alcohol (this shot was seemingly impossible with flash, but I'm still too amateurish with my camera to improve it much; I did not want to touch up the shot at all on my computer besides cropping and scaling):
I don't have a motherboard or CPU for this heatsink yet (next month some time I'll have the money I hope) and obviously I can't do a before and after comparison of any kind. For what it's worth: delivery was quick and the price was as good as I could hope with the lapping surcharge (better than doing the work myself ). Hopefully one of you finds this useful .