5 Nov
2010
5 Nov
'10
3:29 p.m.
http://www.goldrefiningforum.com have the answer... or at least better data.
http://www.goldrefiningforum.com/phpBB3/viewtopic.php?f=60&t=62&p=5…
.... "Here's a shot of the 0.310 gram BB of gold from the exterior of
a single PP cpu:"
More data, PC mother boards is sold and bought by members on that forum
at $4 per pound, if there were 10 ounces gold per ton the price would be
higher.... but for mobile phone board I've seen figures in that area.
I have also managed to extract 0.2g of gold from a single 286 CPU. There
is a lot of old IC:s in ceramic capsule that is using a gold silicone
braze for fastening the die and the lid. The surface plating is usually
very thin.
Disclaimer : No working or rare CPU:s were hurt in making this posting.
/G?ran
Eric Smith wrote:
Patrick Finnegan wrote:
A few years ago, a scrapper would give me just
over $6 per PPro in qty
1, so either he was an idiot (less likely), or there's something to
this.
I can think of a few other possible reasons that have nothing to do
with gold content. The most obvious is simply that the resale value
of a Pentium Pro was well over $6.
Don't forget to include the bond-out wires,
the fact that there's two
pieces of silicon that need to be interconnected, and the gold plating
on pins.
I don't think those add up to more than a small fraction of my
estimate of the amount of gold on the kovar lid, but that is why I
allowed for being off by an order of magnitude in my estimate, and yet
the amount of gold even with that fudge factor is far less than the
wild claims being made.
Eric