Need help with CPU on boards.

[Indigo Suelo]

Well goran,
If you would read what was stated you would have known that I stated ,pending brand and age of devices.
For example older Macintosh boards are heavy plated where as new e-machines are not.
If you recycled these products and are not getting T least several grams per unit recycled, then check your technique and be more careful in your rinse process.
Note you don't have to take my word for it, you can contact the companies themselves and have them tell you exactly . Also to be noted that is how I know.
Again thank you for reading the post I hope you found it informative and do read my other posts on varing topics.

 

[jimdoc]

Well goran,
If you would read what was stated you would have known that I stated ,pending brand and age of devices.
For example older Macintosh boards are heavy plated where as new e-machines are not.
If you recycled these products and are not getting T least several grams per unit recycled, then check your technique and be more careful in your rinse process.
Note you don't have to take my word for it, you can contact the companies themselves and have them tell you exactly . Also to be noted that is how I know.
Again thank you for reading the post I hope you found it informative and do read my other posts on varing topics.

You sure do come off as an expert. Can you let us know how you became such an expert?

 

[etack]

Well goran,
If you would read what was stated you would have known that I stated ,pending brand and age of devices.
For example older Macintosh boards are heavy plated where as new e-machines are not.
If you recycled these products and are not getting T least several grams per unit recycled, then check your technique and be more careful in your rinse process.
Note you don't have to take my word for it, you can contact the companies themselves and have them tell you exactly . Also to be noted that is how I know.
Again thank you for reading the post I hope you found it informative and do read my other posts on varing topics.

You sure do come off as an expert. Can you let us know how you became such an expert?

I think I know and feel this person. Hot and ready to go. Deep breaths and knowing the ropes and plenty of smiles.

Eric

 

[g_axelsson]

Well goran,
If you would read what was stated you would have known that I stated ,pending brand and age of devices.
For example older Macintosh boards are heavy plated where as new e-machines are not.
If you recycled these products and are not getting T least several grams per unit recycled, then check your technique and be more careful in your rinse process.
Note you don't have to take my word for it, you can contact the companies themselves and have them tell you exactly . Also to be noted that is how I know.
Again thank you for reading the post I hope you found it informative and do read my other posts on varing topics.

Let's see... Power Mac 7500/100, old enough? Not a lot of gold there.

Mostly connectors with partially plated pins and some chips with bond wires. Not a lot of gold there. If you are lucky you could have about a kilo of circuit boards here.
I just sold this computer for about the same price as 1 gram of gold, no refining needed. I don't think I made a bad deal.

ND-5000 mainframe CPU.

About 3,5 kg pure art. :mrgreen:
Three layers of circuit boards stacked with gold plated connectors. Custom ASIC in purple ceramic...

The CPU belongs to the ND5000 line of mainframes. The larger cabinets can take four CPU:s but these two cabinets only have two CPU:s each at the moment.

Two computers and one disk storage cabinet. No, it's not for refining, it's for my classic computer collection. I got it this autumn. Five pallets, two computers with a shared file store cabinet and two pallets with circuit boards, documentation and other spares.
This is the kind of mainframe that could yield several grams of gold per computer if you would extract it.

So... what model of Mac or HP would give more than 5 grams? Please share. :wink:
I have a bunch of HP servers and Macintosh computers in my house. I also have a couple of IBM e-machines.

Göran

 

[Indigo Suelo]

Thanks but no thanks, I learned on a computer, but I do natural extractions of precious metals and ores now.
It does look like you have a considerable amount of material to recycle, my best advice for you is go slow and rinse and neutralize often.

Your yields will vary pending brand name.
And the seemingly sny comment made by Jacob... My response is, read the post I stated how and where the information comes from. My expertise comes from actual experience.

At this time I would like to simply say, this is not facebook, I'm not looking for halfwits to randomly attack iteligent responses. If you are seeking assistance and I can lend a hand ask, but if youre some halfwit looking to frustrate or irratate persons posting... Do everybody a favor and grow up. Thanks have a nice day.

 

[FrugalRefiner]

Indigo Suelo, you're a new member. We don't have any idea whether you are an expert or not.

If you continue to insult members by referring to them as " halfwits", your stay here will be brief. See the foum rules at Board Policy-------This should be read by everyone.

Dave

 

[Yggdrasil]

Indigo.
Maybe just maybe, you should take your own advice.

 

[Makcc]

Putting the whole board in acid is foolish. As is putting a bunch of processors into HCl without pre-treating.

The proper method of treating this waste with hydrometallurgical methods is well defined on this board elsewhere. You break each ceramic processor, do a short soak in warm nitric to free the silicon dies, pins and caps. Decant, saving leach. Leach will have Ag/Pd. Just save it.

I personally prefer to remove large portions of ceramic and process them separately (first). The pins and caps are put in a second beaker.

Now add HCl and warm to 90 deg C. Add nitric in steps until no more reaction occurs. This won't take long. You may still have enough residual nitric from the first wash to get it done.

I then decant off the pregnant leach on to the beaker with lids and pins and small crumbs of alumina which I dissolve last.

I do this for a couple reasons. The longer you boil the ceramic in pregnant leach, the more gold you temporarily lose. The alumina will soak up a significant amount of gold. The second reason is I can do a quick hot wash of the alumina ceramic bodies, then just add the wash to my leach. Usually I end up having to add a little more HCl because dissolving the caps takes so much HCl.

Let me clarify that i was talking about the SUN CPUs at the bottom of the pictures and not the entire boards....please read my original post.
Member Kurtak had provided a solution.
I believe that this thread has deviated and no longer serves a useful purpose so if the moderators want to close it before it becomes a source of issue, thats fine.

 

[stella polaris]

@Göran or other that knows.

The female connectors (contacts) on the 3,5 kg pure scrapping porno photo. Any idea of the yield of that type pinns?

Have a bunch of them if the same. Mine only have pins in the outer rows. The middle row is empty. Only pins in every second hole. Looks good even if not fully plated. Easy to pull. Or is it just to put in pyrolysis together with lower grade?

 

[g_axelsson]

@Göran or other that knows.

The female connectors (contacts) on the 3,5 kg pure scrapping porno photo. Any idea of the yield of that type pinns?

Have a bunch of them if the same. Mine only have pins in the outer rows. The middle row is empty. Only pins in every second hole. Looks good even if not fully plated. Easy to pull. Or is it just to put in pyrolysis together with lower grade?

There are no solid yield numbers of those connectors. That type has been manufactured for over 40 years at least and by many companies. Older connectors, especially wire wrap models, could contain up to 10-15 grams of gold per kilo, but then we are talking about thick fully plated pins. Later on the manufacturers became very good at just partially plate the pins so there are less gold per pin. Some cheaper ones are only gold flash.

Göran

 

[Indigo Suelo]

That is accurate , companies these days find it more profitable and cost effective to merely "flash" the plated materials located inside computer components instead of how they once heavily plated the components.
This would reduce yields for recyclers making a tough business even tougher,.
I can state it as such, I learned how to refine the precious metals by recycling a few PC towers years ago, the amount I found in that process was... Not relevant, it was the knowledge of the process that was most valuable, so I could further my endeavours in the mining industry.
My suggestion to the recycling community is, get up, get out, and have fun... Safely. Mining season 21is here and the picking is good. If you would like to arrange a visit to my location or are interested in other locations pm me. B-)