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i think i hit the cpu jackpot

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  1. #1
    jghilino started this thread.
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    i think i hit the cpu jackpot

    Just bought 80 pounds for $800. Lots of single sided and double sided continuous gold plating on them. For less than the going rate of slot cpus.

    53 lbs 98 Pieces CPU Boards Gold PM Recovery Scrap not Ceramic 386 486 Look | eBay
    26 lbs 72 Pieces CPU Boards Gold PM Recovery Scrap not Ceramic 386 486 Look | eBay

    I buy and sell all types of scrap and escrap. I buy specialty and hard to sell escrap. I buy resale items. PM me or contact me at jghilino@hotmail.com
    I AM ACTIVELY BUYING ESCRAP OF ALL TYPES. BOARDS, RAM, CPUS AND MUCH MORE

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  3. #2
    PartTimeScrapper's Avatar
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    I would love to know recovery rates on those boards.

  4. #3
    jghilino started this thread.
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    Well with my trimming skills im thinking i can turn a 500% profit on them, ive been getting $100 pound for single sided solid plated and $200 for double sided solid plated. 1/3 of the board is double sided gold plated. Some of the rest is single sided. Im not a refiner so i dont know anything about recovery rates. I do know how to use a pair of tin snips though.

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    It's an interesting purchase. It seems people are still trying to sell some of these.

    I'd throw a couple on ebay for 50.00.

    HP A3641 80022 Processor Board | eBay

    PacificGeek.com - HP PROC A3641-80022

    Computer Store > HP A364180022 - HP Proc 200MHz Pa-risc 8200 4MB Mfr P/N A364180022

  7. #5
    jghilino started this thread.
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    Agreed phantom. Possibly several ways to move these. They might be risc cpus but i dont see any risk here.

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  9. #6
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    The gold plating is usually 22k and plating can be between 12-20 micro inches dependent upon when it was manufactured. If before 2002 it will be thicker gold plate, if it's after 2002 it's going to be closer to 12 micro inches.

    So you first figure out the total square inches, and the aprox micro inch thickness and then input that information into a gold plating calculator like this:

    Gold Plating Calculator

    Then calculate for 22k and you will have your real value, or as close as you can get without actually refining it.

    Believe it or not, once depopulated and the soldering mask is removed, that type of material is fairly inexpensive to recover, you would refine the same way you normally would refine Au, but the recovery process is fairly simple.

    Scott

    Scott

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  11. #7
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    What type of standard slot CPU are you talking about?

    What are you basing the value on?

    Slot CPUs do have other things on them besides the gold plating. Here is a picture of a Pentium III slot CPU



    If you look close, you will notice the MLCC's, those usually have Pd and some have Ag, then you have flat packs that contain PMs, plus the gold pins of the CPU itself, and whatever PMs it might contain, although they contain very very little themselves. Some slot cards have the same type of CPU seat as one connected to a mother board, if that's the case, the seat also has gold plated female pins for the CPU to fit into.

    There is usually far more PMs in the components of a board, rather than the actual gold plating you can see with your eye.

    The plating calculator works fine, or you can google "gold plate calculator" and find another one, just make sure you are aware what unit of measurement the calculator is using.

    I wrote this in response to another person's post that they have since removed. I didn't want to see like I was just blurting things for no reason.

    These boards are actual risc processors, they don't have CPU's on them, they are the CPU.

    You might be able to sell them for more if they work, if you put them up on ebay.

    http://www.ebay.com/itm/A3261-69204-...-/120600855682

    If you do a search for that same type of risk processor you will find a lot of auctions in the past, and what they were able to sell for. Just google "ebay HP A3261-69204".

    In any case, it seems you can sell each board for at least $19.99.

    Scott
    Last edited by NobleMetalWorks; 12-08-2012 at 01:15 AM. Reason: Post was removed that this one refered to or answered.

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  13. #8
    jghilino started this thread.
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    Noble metal you are alot more knowledgeable about boards than i am, especially on the refining end without a doubt. I had no idea there is about double of what you can actually see.

    Well even at $20 each thats a nice profit. The problem is its gonna be hard to sell that many to someone and if i take a lower price for a bulk sale plus fees and shipping costs im looking at $10-$15 each. Where as if i process them for gold trimmings i can make $20 each after all costs are covered. I am leaning towards scrapping them. I am still waiting to hear back from my cpu buyer if hes found a buyer for these. Still looking into options before i destroy them.

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    If you scrap them, I would remove and retain the MLCC's until you have enough to put them on ebay and make a good profit on them. Refiners generally work with one type of material at a time. So if you collect several lbs of MLCCs you will make some refiner very happy. It seems like you should have more than a few of them.

    The flatpacks you can remove with a razor blade across the contact wires, or if you are really industrious you can get a cast iron skillet or woke, put play sand in it, you can buy the same at Lowes, then lay the board on the sand, solder side down to remove the solder, just make sure to do this in a well ventilated area, the solder fumes are toxic, then you should be able to pluck the components off. You probably already know all this, but I figure it might have value for someone else who comes after and reads this.

    Scott
    Last edited by NobleMetalWorks; 12-08-2012 at 01:15 AM.

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  17. #10
    jghilino started this thread.
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    Actually i think i can trim all the gold off the perimeter and still get slot cpu price of $10-$12 pound for whats left over, i have several buyers i have a good relationship with that will move it like that. What exactly aree the mcc's and how much pound do they typically go for?

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  19. #11
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    Here is an ebay auction for MLCCs, they bring prices all over the board. There are not many lots of them on ebay at any given time. I believe there is someone here on the forum looking for MLCCs.

    Lot of 1 Troy oz MLCC Scrap Computer Palladium Recovery Bonus Free Gold Info | eBay

    Here are some pictures so you know what they look like:



    ee

    Scott

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    Monolithic ceramic capacitors

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  23. #13
    jghilino started this thread.
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    I see those on just about all of my boards time to get the pliers out. I spent 10 minutes pulling them and got 1/10 of an ounce. They do appear to be in higher concentrations on laptop boards, slot cpus and videocards than the rest of the escrap boards. Theres also tons on hard drive boards.

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    Thanx boys for this fine piece of knowledge sharing right here. Palladium is go'n 4 like 7 bills per oz and that's a REAL gOLD mine right there, well, a P mine. lb Cheers!

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    Quote Originally Posted by LarryB View Post
    Thanx boys for this fine piece of knowledge sharing right here. Palladium is go'n 4 like 7 bills per oz and that's a REAL gOLD mine right there, well, a P mine. lb Cheers!
    Not to burst your bubble, but palladium isnt selling for that much..

    Palladium Price
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    He's Canadian, he might be talking about Canadian prices.

    Scott
    At the heart of science is an essential balance between two seemingly contradictory attitudes--an openness to new ideas, no matter how bizarre or counterintuitive they may be, and the most ruthless skeptical scrutiny of all ideas, old and new. This is how deep truths are winnowed from deep nonsense. -- Carl Sagan

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    Quote Originally Posted by NobleMetalWorks View Post
    He's Canadian, he might be talking about Canadian prices.

    Scott
    Well if palladium is selling for that an ounce over there, I am going to start investing!

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  31. #18
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    Quote Originally Posted by NobleMetalWorks View Post
    The gold plating is usually 22k and plating can be between 12-20 micro inches dependent upon when it was manufactured. If before 2002 it will be thicker gold plate, if it's after 2002 it's going to be closer to 12 micro inches.

    Scott
    I am a printed circuit board designer. You are correct about the plating, as I used to specify to the manufacturer 12-25 micro inches of gold to be plated over nickel, on top of the copper. It was a complete immersion plating as opposed to selective areas. Meaning not just the exposed areas of pads, but all copper including under the soldermask. In other words, there may be gold on top of all the traces that are external, not just the chips. We never spec'd out how much nickel to put on though.

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