hmm, 3 styles of heatsink eh? i know of the iodised bitcoin logo'ed heat spreader, and the one with fins on the original, whats the 3rd type?
I meant within the production runs 
There's the matte, the semi-gloss metallic and the spun metal look.In terms of geometry, I'm only aware of bare (i.e. no heatsink at all), the early extruded heat sink, and the heatspreaders as being 'official'. Crapton of heatsink configurations from users out there, with varying degrees of 'overclocking!' claims
as for the emerald ones, they have "ver:2" silkscreened on it?
Probably, though I can't say I found any name-to-Rev information back when I did my BE homage post. One of the earlier shots did depict 'Rev 2.00' as the silkscreen, at least; http://oi42.tinypic.com/2z589s5.jpgI can only presume there was a 'Rev 1.00' at some point, even if never in released board form
Well, if i ever get my hands on one (i would probably get more lucky getting a block with an sapphire then getting a emerald), i now know who'd want it
but yes, OP, if you haven't already gotten any, my offer still stands, since i had 9 of them and PSU killed 6, you can have the 3 remaining working ones..
