I’m a 15 year old who literally has no relation to this field of work, this is really interesting and I easily stay up at 2 in the morning watching the full video
One of the best parts about your videos is how clearly you speak and how you produce such quality sound, I really appreciate that you have a microphone headset.
I admit to being emotionally attached to those chips you're so cavalierly breaking up. I was the design manager for the Pentium Pro processor and it's follow-ons. There was a lot of blood, sweat and tears that went into making these devices. Figuring out how to put two die in one package economically while maintaining a high speed bus connection was hard.....But, technology moves and what we invented then continues in other processors today. Still hard to watch these being broken up for the elements....:)
Not all pentium pro cpu's contain the same amount of gold. You need to check the Cache level on them when you buy them. the 512K cache contain more gold than the 256K cpu's You also might want to re-check the ceramic pieces before you discard them. There is usually gold brazing UNDER the silicon Die, if you don't break them up enough, there might be trapped gold under the die
Dang thats interesting. Would have never thought cache would have anything to do with the PM content. Amazing how much money we used to spend on these "latest" processors vs the scrap value now. Talk about a depreciating asset.
I was thinking a grinder/powerizer would be cool. Help to get everything exposed. Create more surface area. He could do it with the silver-gold alloy also. (Electrum? Or is that only 𝘯𝘢𝘵𝘶𝘳𝘢𝘭𝘭𝘺 occuring?) It looks like delicious, clumpy brown sugar if he doesn't, though.
Please stop encouraging people to destroy vintage CPUs. A quick check on ebay will demonstrate that it is completely uneconomical, and simply an exercise in wanton destruction.
I’ve been following you for awhile sreetips, I am an electrical mechanical engineer and we build generator for locomotives. Ever since I saw your refinement of brazing rods I have kept all my scraps nibs they range from 15% to 50% silver. I have pounds of the scraps I would like to refine soon. I was wondering if you could do a video on some of your lab materials. Such as where to purchase the acids, glassware* I have a bunch*, crucibles, safety equipment and PPE, and other vital materials. I am in the process of setting up my fume hood right now. I think this info could be beneficial for the new hobbyist. Your followers understand that you’re a busy man with all the work and content you provide for us and we thank you. Keep up the great work.
I've watched at least a dozen videos on this topic and yours was 100% the best one with clean clear instructions. I'm still not sure If I'm going to bother doing it but it sure was fun to watch.
Thanks again for another video. I'm happy to see some lead sulfate, and I still think it would be awesome to see a heavily saturated solution of it precipitate in another video
From one veteran to another, thank you for your service! I have been watching most of your videos and learning how to refine precious metals. Nitric is too expensive and I'm not brave enough to try to make it myself (yet). The question I have with this method is: What is the temp outside? I was thinking about doing this with some CPUs and fingers from a collection I have and wonder if the cold weather (30F/-1C) slows down the process?
Have watched several of your videos and really appreciate the detail and explanations of the chemistry involved. My background is more in the organic field, so I recognize that there a many other subtleties that aren't covered in depth. I do want to emphasize, for example, that a good fume hood and other protections are critical so that people remain safe. And while I love how your camera work that allows us to see the in-process pours and collection, the viewers should be cautioned that pouring acids or any strong chemicals toward the body can be very dangerous and is being done to show the work. Your videos are very interesting and helpful to me.
I believe you are missing some gold under those caps. Remove the caps/lids on the cpu's before you smash them. There is gold brazing underneath the caps. Back Yard Scrapper just did a video a couple of months ago on these cpu's, and showed this step. I really enjoy your videos and you are a great teacher.
Dear sreetips You work really hard on this channel and I appreciate your efforts. you are publishing videos almost every day I've learned a lot from you I wish you the best in your life
Yield is low when you compare to what Sree works with day in and out, but compared to any other ‘waste’ material in the world that’s an amazing return. Your yield was spot on for the chip type. Your amount of pre-processing required compared to all other non-ceramic CPU’s is what makes that recovery rate so good, cause all you had to do was smash and add acid, which cannot be said for the other forms of e/waste material. Huge savings in time.
I've not yet started to refine my gold yet. I know Ewaste is alot lower yield than karat but that is the majority of what I've been hoarding for many years, and I have collected alot over that time! I'm looking forward to seeing the yield. My expectations are very realistic though! I love it when you do the Ewaste video as I'm sure many others are as well. Have a Great Day My Friend!!!
So I'm curious about this process, had you used more scrap would you have had to increase the amount of the solution or would you have been able to yield more returns for the effort put into it?
I don't think I have seen you using AP very often 👍 its my main process so thank you 👍 Edit, im absolutely amazed by the tiny amount from those, i had been lead to believe they are far better in term of return.
May be a silly question but when using an oxyacetelene torch to heat PMs do you have to have the darkened eye protection similar to a welding helmet? Ive never had an oxy ace torch.
@sreetips where do you get your chems at? Your main ones I guess the nitric is what I mean is it local or by mail I can't find a good rate so I make my own ( very time-consuming) I have a local place but they are insanely expensive any thoughts or experience on this would be nice thank you in advance
I buy mine from GFS Chemicsls. But they don’t deal with the public. You must have a company (LLC easy to set up in most states) and they won’t ship to residential address. Check dudadiesel.con
Shipmate was wondering if you used a magnetic stir stick in the bottom of the beaker on a magnetic stir table. Does this work instead of using air bubbler
I bought like 40 of these pentiums and a bunch of military grade pins, glassware, melt dishes, smb, B.funnel, filters etc etc. 9 or so years ago when I started watching Indeeditdoes. Only thing holding me back was a fume hood. Maybe I could setup an outside unit like yours to start learning again! One day ima get that gold out lol. Great vid as always!
If your doing it for the science great. If your just after the gold you might want to check the prices of the chips you have and just sell them, then buy some gold you will get more plus less hassle haha.
I agree, the chemistry is fun to observe and it's exciting to succeed at it. 9 years ago, might make a profit. I did the same but stopped trying to use tons of acids and just melt pretty much anything I can if ceramic is involved. Cheaper to just burn out the metals and pour shot to hammer and roll thin, then acids. I found myself no matter what, always ending up with gold still inside the ceramic. I disliked the time grinding up ceramic by hand in cast iron crucible.
There is a process I read for making monatomic gold that uses HCl and H2O2 to dissolve it. That form of gold has some pretty unusual properties . One of which is evading detection with regular methods including mass spectroscopy. What if some of the gold was lost in the very beginning?
When you switched to the PC mic, it sounded pretty good. Just a tiny bit muffled, but I'm hard of hearing so it could be my ears playing tricks on me. Oh, I'm using headphones if that makes a difference.
I'm surprised you don't use a filter pouring off the rinse water then burn off the filter at the end as usual. Get all the gold and forget the drain waste. Great to see you found your shipmate. Fair winds and following sea.
CPU's like the pentium pro are held in with a clip and do not come into contact with any solder but it is still the best practice to add sulfuric acid.
As sreetips has figured out, the plating process in electronics doesn't involve pure gold, it's a process in steps involving other metals. Some volume processors melt all the metals and pour them into the shape of cathodes. The gold ends up in slimes at the bottom of a tank.
I've been collecting circut boards to recycle the gold from the highways but I'd like a demonstration as to how to do that.I think I'd burn the shalack off then further refine it.Please tell me if I am correct?
ol' Sreetips!!! Great video as always! Quick question that you vets might make in a video or perhaps just write back.. In the final steps of adding stump out and borax: The amount of stump out to use in reference to the stock? If two much is added best recommendation to fix the mess. Same thing with borax, amount used and a fix if too much is added. Thank you Sreetips and Archimedes Channel for your educational videos
The yield confirms that AP is not the weapon of choice when it comes to gold recovery from CPUs. How about the silicone dies? Are they still attached to the ceramics? If they are there's alot of gold underneath. The silver in the braze is blocking the AP
CPUs especially on Ebay people are wanting more $ than the yields more and more. I have heard that the older rear projection TVs are some of the best yields but they come with a large amount of useless product also but they are easy to find for free on Facebook Marketplace & Craigslist. As always another great vid and you always make me miss our towns Ace Hardware that went out of business few years ago
Its really is best to just remove the soldered caps with heat than remove the silicon die with heat as well. The ceramic remains intact but the acid can hit every spot were gold inlay, brazing etc hides under the dies but it can be done anyway one wants to do
Good video on why e waste is a bad investment for the home refiner. The pc mic volume sounds so much more clear than before, I think you should stick with the volume you set it at
Sreetips I have to ask, why do you think these yielded much lower than your previous batches when the average was around .3 per PP or around 1.2g for 4
@@sreetips see thats how one should answer question, if you mesw up take responsibility and be honest shit happens. You should check out that video from ewasteben, i dint understand why so many people are gullible on yield recover rates.
He just did a updated chip returns video and his numbers are way off It kinda pissed me off because as a hobby Scrapper refiner he put Exaggerated dollar signs in sellars heads
Ewaste ben is a joke who makes clickbait most of the time, he hasnt refined the first gram of anything. Hes only a scrapper who dreams up fake yields for the views and noobs believe it.
@@jasong8377 Very true, Ben is a joke. He hasnt refined anything and never will but he will keep on making fake yield data like its real. This was interesting I didnt listen to the video or why the yields were lower than the average .3 per pentium pro that sreetips usually got back in the day. .3 to .35 with ball milling etc is about the best you will get. Did you like how ben even showed off the wrong cpus when he did that video, bad enough the yields were wrong he couldnt even have the right model to go with it.
Does anybody know what the paper fibers become in that solution of acids? Cellulose contains C H and O, would that be producing traces of nitrocellulose?
Audio good sir.. great voice helps! The amount of gold, not so much. I get about .3g gold / pentium pro? I do crush into a zillion bits.. in my mill before removing base metals. I’ve been in the electronics industry all my life, now retired. I enjoy reverse prospecting electronics 🧐 I am preparing some Pentium CPU’s 1992, 1993 (expected yield .12g/cpu) and will do at least one experiment before processing the entire batch. 64 total CPU’s Simple break up of CPU’s VS Milled to Powder. Thanks Sreetips! ✌️PT
Definitely know better than to attempt that, lol. Sound was good with the sound change, maybe a touch low. 👍 Thank you sir for teaching me this valuable lesson. #teamSHTF
Hello Mrs and Mr Sreetips. Man...I am suprice how much gold you get🔥 Hope both of you have a wonderful morning/ day/Evening/ night 🙂 Here in Norway the clock is around 11 in the morning. Rest of the snow is soon gone...Praise God🌸🌸 The winter is long there we living. Thank you for this clip Sir. God bless your humble hart mam..Sir❤️ Arne
A couple of months ago I heard of someone buying a laptop computer at a thrift store and they found an envelope in the case with $1,900 cash. I believe it. You never know what you might find while thrifting.
My wife found a small gold pendant. The gold had no marking but she can spot gold by eye since she’s been doing it so long. The folks at the thrift store thought it was costume since it wasn’t marked and presumed that the stone was a CZ. She bought it for the gold for $2.99 and it turned out to be a nearly flawless one carat diamond.
@@sreetips I have found gold with free mason stamps they stopped using in 1912. I found a 4 gram 14kt charm last month at a swap meet for $1. It had no markings whatsoever. And I may have found a rare 1878 one dollar gold coin at a thrift store in needles CA last week and was told I could have it, because I bought a bunch of other stuff, including a 7.5 gram 10kt bracelet for $20. Picked off a 1.25 gram 14kt gold ring and an 7.5 gram 18kt white gold with 6 15+ point diamonds 2 weeks ago. Paid $5 each. Lol I'm building a pile of gold filled, and high grade electroplated gold costume jewelry too.
