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| Dismantling, Breaking Down & Maximizing Scrap
  1. #1
    EcoSafe started this thread.
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    Has any one ever determined the profit or difference in return on green fiber CPUs, removing the caps and leaving them whole ? Thanks
    "anyone who thinks scrappin is easy money ain't doin it right!"

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    eesakiwi's Avatar
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    If you are talking about the flat square Tin plated Copper heatsink on some CPU.
    I would leave them on.
    I read that under that heatsink there is either a Sliver or Gold splash of paint that's used as heatsink paste between the actual chip die and the Copper heatsink.
    They mentioned that 'one in X amount is Gold', that's part of their profit. If you send them in without the cap they don't get that $1 (value$?) and it costs them in the end.

    I expect its like the windowed eproms, sometimes its Gold wires with a Gold splash under the chip die.
    Most of mine are Silver wires and Silver splash. Its a % thing I guess.

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  4. #3
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    Yes, I've seen the gold on the back of the copper caps that eesakiwi is talking about. I have no idea how much is on there but I do understand the buyers have to average in for their profit.

    I did do a breakdown a few weeks ago on these and determined that it is better for me to leave them on. I can't find my notes right now, but will post details if I find them. I remember breaking 20 each of a few types down. The ones that have the plate the same size as the fiber are definitely worth more whole. The ones with the smaller plate on the larger fiber would sell for only a little higher if pulled apart and valued for the fiber chip and the copper plate separately. It is such a small difference that it's not worth the time to do it in my opinion.

    On the other hand, the K6 AMD ceramic with the aluminum plate is a pretty good item to break down. The plates come off easily with a chisel and the items sold separately bring more than together.

    Again, I will post the breakdown if I can find my notes.

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  6. #4
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    ( My info is a little sketchy so take it with a grain of salt. )

    The pre-yr 2000 processors break down a little more easily.

    The post yr 2000 processors like the p-4's & AMD equivalent seem to have a copper heat sink that's held on with some kind of epoxy. It can be difficult to remove the heat sink without damaging/devaluing the processor underneath.

    Heat might be the best solution. I've used a heat gun. I've read that they can be baked in an oven at 280 deg for 20 minutes but haven't tried that method.

    Best argument i can think of for doing it would be to reduce shipping costs. It would be more cost effective to ship the light,value rich processor and sell the copper or aluminum heat sinks locally.

    It's really small potatoes though .... better to turn-n-burn in my opinion. Do the quick disassembly and leave the task of processing to those set up to do it in volume.
    Last edited by Scrappah; 02-22-2016 at 03:49 PM.

  7. #5
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    Found my notes on this one. The large fiber CPUs with smaller copper plates weigh .82oz each. The 20 sample size I did weighed 16.4 oz total and had 10 oz of #2 copper plates removed leaving 6.4 oz of fiber CPU. I did the math using current prices (which I won't post because they will be different when read) and found that there is about a 5% gain in separating the copper from the CPU. Unless I have thousands of them and nothing to do but chisel the heatsinks off, I'm just leaving them on.

    This did include selling the copper separately.
    Last edited by Pnutfarmer; 10-27-2016 at 11:08 AM. Reason: Additional information.

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  9. #6
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    Not worth it.
    Sell as is and move on

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  11. #7
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    If you want to know, AMD does not flash any gold nor do they solder their heat spreaders. You could heat to about 450F to break the epoxy and silicone then shake them to release the heat spreader if your doing it in high quantity. Oh btw, dont breath the fumes, the epoxy is cyano silcate, bad for your lungs.

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