I've been getting a lot of them in Dell P4 era computers. At first glance they look sort of like extruded aluminum, but tend to be a little shinier and the bottoms are a little thicker and definately more dense. The plating can be pretty thick so take a thick screwdriver or something and really scratch the bottom good. Go deep enough and you'll see that nice copper pink show through.
Often it is aluminum fin soddered to a plated copper base.
Last edited by bjybjy; 12-22-2011 at 08:13 PM.
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