something in slot processor cpu's?

[frank-20011]

hello,

i've found some slot cpu like Pentium 2:

http://img.tomshardware.com/us/1997/03/01/the_intel_pentium_ii_/klam-a.jpg

and like thisone:

https://upload.wikimedia.org/wikipedia/commons/a/a7/Intel_Pentium_III_Katmai.jpg

i know about pm in the fingers and so on but i ask if is woth to process the CPU itself, meybe by incineration?

best regards!

 

[patnor1011]

Have a look under metal plate on first picture. I do not think there is anything in a second picture type.

 

[acpeacemaker]

1st does have pm's under the plate. I always had torched them off and then cut them up.
2nd one there might be more pm's in that NEC chip to the right than anything. (I know it's just an example pic)

Andrew

 

[frank-20011]

Hello,

thanks!

Today I've cutted one of these pentium 2 with a diamond disc and on the new surface there are some nice bonding wires.

Under the heatsink comes the silicone die under these there are a synthetic resin "basin" and in it there are the gold bonding wires so i will incinerate these type of cpu!

this video shows the nicely bonding wires, at 5:20


https://www.youtube.com/watch?v=Nn4WFkBnL08


best regards!

 

[canedane]

Hi Frank, before you incinerate please look how Geo do with a black cpu( short youtube video), i belive you can do the same. The frame at the cpu is fiber and it will not burn.

http://goldrefiningforum.com/~goldrefi/phpBB3/viewtopic.php?f=34&t=14024

Under the heatsink comes the silicone die under these there are a synthetic resin "basin" and in it there are the gold bonding wires so i will incinerate these type of cpu!

Henrik

 

[macfixer01]

Hello,

thanks!

Today I've cutted one of these pentium 2 with a diamond disc and on the new surface there are some nice bonding wires.

Under the heatsink comes the silicone die under these there are a synthetic resin "basin" and in it there are the gold bonding wires so i will incinerate these type of cpu!

this video shows the nicely bonding wires, at 5:20


https://www.youtube.com/watch?v=Nn4WFkBnL08


best regards!

I hope you don't put much faith in this person's videos or worse yet pay him for any information! I naturally assumed the caption in the video was wrong when it said he was adding Nitric and Sulfuric acid, but now I'm wondering? Since the gold was left behind, apparently it really was not Hydrochloric he added along with the Nitric? So it seems his whole purpose was only to expose the gold, and not to dissolve it. Even so, I can't see where the Sulfuric acid would have done anything to further that goal? Who knows though what his thought process was. This is one reason I detest videos with no narration of any kind, and I usually give them an automatic thumbs-down. Even narration in the person's native language would be preferable to stupid ape-like silent pointing and gesturing!

 

[patnor1011]

He did something resembling wet ashing. He removed epoxy to expose bonding wires. What he did can be called nitration and it is extremely dangerous. If/when solution became hot it will dissolve gold too. I think he forgot to mention something in that video or did something else as mixing concentrated nitric and sulfuric together will make them hot so I kinda expect bonding wires and plating on back side should dissolve and they did not. I would not advise trying this kind of experiment.