Averege yield per 100g of fiber CPU pins ~?

[macfixer01]

bmgold,

On each post, there is a big red exclamation point, (!). It's main purpose is so the members can tell the moderators that there is some problem with that particular post. After clicking on it, you will get a chance to state the problem as you see it. The red (!) will then show up in that post and in the menus, but only is seen by the moderators (as I understand it). A moderator will then solve the problem. That's OUR job.

Thanks GSP - I've been on the forum a long time and never noticed that doodad hanging out at the bottom.

I've never seen the red exclamation point either, and still don't for that matter (other than where GSP explicitly inserted into his reply). Apparently it may only work in certain browsers? I have no idea either what the reason is why bmgold2 was threatening another member with expulsion? Didn't we just get past another one of these incidents? Parts of this group are sure turning into a bunch of elitist nitpickers!

I'm sorry I posted that but it is done now. No deleting allowed either. I wasn't threatening him just trying to warn him. I won't do it again since that is not MY job. We have a good, clean forum and the language wasn't needed in my opinion. Doesn't really bother me but...



As to the red exclamation point, it's right beside the quote button. It turns red if you mouse over it.

Oh, I see it now. Well it's so tiny even on my 27 inch screen that I can barely tell it's an exclamation point? As you say it also only turns red if I hover the mouse over it. This cleared up my other confusion also, since looking back now I see what had already been edited out before I read Duck's posts. Only in GSP's quote of the un-edited original post do I see the "U" slang and the other offending word. My apologies to you bmgold2. This is what happens though when people edit their own posts, then others come later to the party.

 

[DuckTheQucker]

I'd say the dots and lines look gold plated also. I'd scratch off some of the solder mask over the leads (lines) on the circuit board and check if the whole board might be gold plated. Probably isn't but only takes a second to check. If it is, try searching this forum for solder mask removal.

Keep in mind that the I.C.'s (black rectangle pieces in your picture) also contain gold. Again, search this forum for methods to recover it. Should be worth saving.

Wires between IC's , fingers, capasitors and lines are also gold plated.
Recommending to cut fingers first, cos boards got lots of tin in it, will be difficult to recover.

What about capacitors on the Ram sticks, Ceramic's and Black with 220 written on it.
Is it true that they contains platinum ?

 

[solar_plasma]

Is it true that they contains platinum ?

the black with numbers are resistors, the chocolates are mlcc's...now you should start using the search engine... :roll:

 

[g_axelsson]

White metal on component legs are most commonly (by far) tin plating. On surface mounted component I would almost say it's the only metal, but there are always a few exceptions.

Then there are some components that have gold flash or thin silver plating on the legs.

A quick test for tin plating is to rub a piece of paper against it, a grey streak means a soft metal and that's tin.

Göran

 

[DuckTheQucker]

Is it true that they contains platinum ?

the black with numbers are resistors, the chocolates are mlcc's...now you should start using the search engine... :roll:

Cant find info on black resistors, looked every where.
I also find black ones with serial number 2A2, 560, 095, 470, 272

 

[bmgold2]

Is it true that they contains platinum ?

the black with numbers are resistors, the chocolates are mlcc's...now you should start using the search engine... :roll:

Cant find info on black resistors, looked every where.
I also find black ones with serial number 2A2, 560, 095, 470, 272

http://lmgtfy.com/?q=smd+resistor+site:http://goldrefiningforum.com

 

[DuckTheQucker]

Is it true that they contains platinum ?

the black with numbers are resistors, the chocolates are mlcc's...now you should start using the search engine... :roll:

Cant find info on black resistors, looked every where.
I also find black ones with serial number 2A2, 560, 095, 470, 272

http://lmgtfy.com/?q=smd+resistor+site:http://goldrefiningforum.com

thanks

Are they worth saving up?

 

[bmgold2]

Please see this link http://goldrefiningforum.com/phpBB3/viewtopic.php?f=37&t=8522&start=40#p204352 This type of resistor can (and most likely does) contain ruthenium oxide which is highly toxic and volatile. Best to avoid processing these parts.

Is it true that they contains platinum ?

the black with numbers are resistors, the chocolates are mlcc's...now you should start using the search engine... :roll:

Cant find info on black resistors, looked every where.
I also find black ones with serial number 2A2, 560, 095, 470, 272

http://lmgtfy.com/?q=smd+resistor+site:http://goldrefiningforum.com

thanks

Are they worth saving up?

That all depends on you. How much it costs you to recover and refine the silver and palladium. How long it takes you to remove the parts. Silver has been staying right around $20/ Troy Ounce so you will need to recover quite a bit to make any money with it. Palladium is worth much more but probably takes more work and expense to get it. I am just going on what I've read and the few tests I've done but it looks like quantity is the key to all of this refining from scrap.

Here's another link to drool over. http://goldrefiningforum.com/phpBB3/viewtopic.php?f=50&t=9131&hilit=resistors

He's processing 100 Kilos a day or over 220 pounds of these parts. Just a guess but I'm thinking over 2 pounds of these parts to get an ounce of silver. If your acid and other supplies cost more than $20 to process that amount of material, then you will be in the hole. If your time is worth anything, add that to the calculations.

I plan to save them as well as the surface mount capacitors but I'm still doing/trying this as a hobby and we all know hobbies COST money.

Edited to add: Keep in mind these are just my untried estimates and my numbers could be off

 

[bmgold2]

White metal on component legs are most commonly (by far) tin plating. On surface mounted component I would almost say it's the only metal, but there are always a few exceptions.

Then there are some components that have gold flash or thin silver plating on the legs.

A quick test for tin plating is to rub a piece of paper against it, a grey streak means a soft metal and that's tin.

Göran

This quick test sounded like a great idea so I tried it with some known materials.

Here's what I got:



The tin was from a roll of lead-free solder, the silver was from a .999 silver round, the nickel (which didn't really make much of a mark) was from a nickel welding rod, the copper was from a wire, and the aluminum was from bar stock.

I tried gold plated pins and also a 14K gold ring. The finger gave a very light grey not very visible and the ring gave a grey similar to silver but not as dark.

All except the copper and nickel were similar enough that you might have a hard time telling the difference.

 

[bmgold2]

I edited my above post but thought I'd add another post here to repeat the edited information about the SMD resistors.

Please see this link http://goldrefiningforum.com/phpBB3/viewtopic.php?f=37&t=8522&start=40#p204352
This type of resistor can (and most likely does) contain ruthenium oxide which is highly toxic and volatile. Best to avoid processing these parts.

 

[g_axelsson]

How hard did you have to push to get the different streaks to rub off?
Try the same comparison on a soft paper, for example a page from a daily paper or a tissue. White glossy papers often contains a large portion of filler in form of lime stone (CaCO₃) and that is a lot harder than the paper fibers.

Göran

 

[DuckTheQucker]

Found a bit of gold under this chips.
Rest of mainboard not worth refining, only in big amounts (tones)

 

[DuckTheQucker]

My friend told me that this yellow capasitors have Tantalum in them.

 

[DuckTheQucker]

What about this ones ?

 

[g_axelsson]

My friend told me that this yellow capasitors have Tantalum in them.

That is correct, and the big Rockwell chips probably have most of the gold on that card. In the form of bond wires.

No obvious tantalum capacitors on the other cards as far as I can see.

Göran

 

[DuckTheQucker]

My friend told me that this yellow capasitors have Tantalum in them.

That is correct, and the big Rockwell chips probably have most of the gold on that card. In the form of bond wires.

No obvious tantalum capacitors on the other cards as far as I can see.

Göran

What about silver?

 

[DuckTheQucker]

I cracked few RAM I.C.s no visible gold in there.
Possible silver.

 

[jimdoc]

Did your friend ever tell you about the search box?

Jim

 

[DuckTheQucker]

What about this cpacitors on CPU's? Do they contain Palladium?

 

[bmgold2]

Try these links:

http://lmgtfy.com/?q=ram+chip+yields+site:goldrefiningforum.com

http://lmgtfy.com/?q=mlcc+yield+site:goldrefiningforum.com

At the top left of each page on this forum is a Google Custom Search bar that will search just this forum for about any information you want.

here's a link for a searching tutorial by LaserSteve. I think it is using the search box and advanced search in the upper right of each page.

http://goldrefiningforum.com/phpBB3/viewtopic.php?p=38519#38519

One tip for you and anyone else that might not know. If you get a page that says:

Not Found

The requested URL /phpBB2/viewtopic.php was not found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

Just change the phpBB2 to phpBB3 in the url. Some of the links for earlier posts haven't been changed.

One more link:

http://goldrefiningforum.com/phpBB3/viewtopic.php?f=69&t=12183

In the first post at that link there is a PDF you can download that really helps use the advanced search tool on this forum. TBarrow did a great job with that tutorial and I recommend anyone that hasn't seen it yet to check it out.