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Geo is right, all that copper green on the CPU:s tells me that there are a lot of base metals left.

Aqua regia on fiber processors are nothing I would recommend, there are too much buried copper that the gold can cement back onto... been there, done that
http://goldrefiningforum.com/phpBB3/viewtopic.php?f=60&t=17697

Your gold is most probably with the solids.

Göran

[QUOTE="g_axelsson, post: 265082, member: 1059"] Geo is right, all that copper green on the CPU:s tells me that there are a lot of base metals left. Aqua regia on fiber processors are nothing I would recommend, there are too much buried copper that the gold can cement back onto... been there, done that http://goldrefiningforum.com/phpBB3/viewtopic.php?f=60&t=17697 Your gold is most probably with the solids. Göran [/QUOTE]

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