Gold Lids (chips) Yield.

[glorycloud]

With a small phillips head you can take the fan off that one remaining
POD (pentium overdrive) so you can read what it says on top of the chip.

Mine looked like this one with the fan off. 8)

 

[schomisch]

Wow goldsilverpro 1.8m in just gold lids very nice =))

~Chris!~

 

[goldsilverpro]

A little about gold plated lids. I don't think I've ever seen a gold plated CPU lid that was attached with anything but 80/20, Au/Sn braze. That doesn't mean they don't exist. The lids are made with a stripe of braze running around the edge of one side. I'm thinking the braze is from .001" - .002" thick, which would make it about 20 to 40 times thicker than the plating. Therefore, much (or, most, in the case of the smaller lids) of the gold value comes from the braze. In my experience, the braze stripe is about the same width on all gold lids. For this reason, smaller lids, which have a higher percentage of their surface area covered, are worth more per pound, assuming equal lid thicknesses. After plotting the data from a few small refining lots of various size lids, a person could probably ball-park predict the value of any gold lid from its area (and the lid thickness).

 

[Barren Realms 007]

Chris, so as long as the cpu's are not missing pins &/or the pins are not so wayout of shape they could be aceptable!?
I saved 2 IDT340's & straighten the pins on the one & I'll be doing the same on the next one. Thanks!

Thanks Steve! I've learned from the best.
I've read so many times different expiriences, (good & bad ones), that I decided to go the route mentioned above for processing the lids, turns out is the same as yours. The only difference is that I boiled in HCl to get rid of tin & some iron; then went to boiling in nitric to speed things up; and the lids were ready for AR in 2 days.

Phil

The pins can be bent all the way over and still streightened out. The best thing I found to use was the lid off of a CPU about 1" sq and just start going inline and with patience you will find it is not that hard, just time consuming when you have a lot of them to do.

 

[philddreamer]

Picked up a few more items.

16 of the C2708; some "cans" with golden legs; 3 golden IC's...
I straightened out the legs on the centipedes. 8)

Phil

 

[philddreamer]

I'll be working on these 45# of boards with lots of pins. I'll post the yield when I'm done. I hope a gram per board!

Phil

 

[larryb]

I'll be working on these 45# of boards with lots of pins. I'll post the yield when I'm done. I hope a gram per board!
Phil

Any results on these yet. lb

 

[philddreamer]

Sorry. I lost track of the post. Those pins had a yield of 2g + per pound.
Phil