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Marcin

Joined: 02 Jan 2005 Posts: 8519 Location: Poland
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Posted: Wed Apr 19, 2006 10:18 am Post subject: |
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One with missing pin is C1702A so could not be worse I will inform about next steps. Don't know details at this moment. _________________ Visit ABC CPU - Virtual CPU Museum. |
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wepwawet

Joined: 18 Mar 2004 Posts: 3019 Location: Seligenstadt - Germany
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Posted: Wed Apr 19, 2006 10:30 am Post subject: |
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yepp, a c1702a desoldered with missing pins is worth nothing if it is not a greytrace _________________ You may use the photos I have posted here under CC BY-NC-SA license. |
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Marcin

Joined: 02 Jan 2005 Posts: 8519 Location: Poland
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Posted: Wed Apr 19, 2006 10:33 am Post subject: |
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Exactly without grey traces. What is specific on it ... marking by pen. Total scrap. Thank you all for informations. Will post soon. _________________ Visit ABC CPU - Virtual CPU Museum. |
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chipcollector

Joined: 28 Sep 2004 Posts: 1681 Location: New England
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wepwawet

Joined: 18 Mar 2004 Posts: 3019 Location: Seligenstadt - Germany
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Posted: Wed Apr 19, 2006 10:51 am Post subject: |
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does anybody know the exact gold content?
also from a p60 or a ppro?
i heared about one dollar for something like a 1702 and up to three for a ppro _________________ You may use the photos I have posted here under CC BY-NC-SA license. |
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chipcollector

Joined: 28 Sep 2004 Posts: 1681 Location: New England
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Posted: Wed Apr 19, 2006 11:32 am Post subject: |
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| wepwawet wrote: | does anybody know the exact gold content?
also from a p60 or a ppro?
i heared about one dollar for something like a 1702 and up to three for a ppro |
PPRO's have about $3-4 in gold value, or more (do you ever watch those goldscrap auctions on ebay? because gold is at $600+ an ounce, their value goes up just the same). The small, older gold chips like the C1702A have a very high gold content because earlier in the chipmaking days they used lots of gold to carry signals inside the core. As time went on, they slowly transfer(Notice I didn't say transferred- they still use gold on CPU's today because believe it or not, it's the cheapest way to do it. Some alloys would cost Intel or AMD a bundle to produce) to other metals and alloys.
486's have the highest gold content, and I'm pretty sure the P60's are next in line.
With 8-9lbs of 486's, you can make one ounce of 24kt pure gold. _________________ http://www.RareCPUs.com
OR
Vintage Chip Database, www.RareCPUs.com/database
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sammyc

Joined: 09 Dec 2005 Posts: 1668 Location: Scottish Borders
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Posted: Wed Apr 19, 2006 11:41 am Post subject: |
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Chipcollector, I envy the life you have in front of you. Very knowledgeable. Reminds me of me when I was your age ;o) _________________ 4000+ chips.
4004-P4. |
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Marcin

Joined: 02 Jan 2005 Posts: 8519 Location: Poland
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