depends how much time you have...
in short, the yield from those pins are low, and the effort to get them will take a while... or are you ding it to try to refine the gold by youself? only you can tell if it is worth your time or not.
I used to harvest the pins, but i found that it ultimatly was not worth the time for what little i was getting in return. I made more by trying to find the next load of computer scrap then the couple pennies I was making spending a couple hours harvesting pins... thats just my two cents though :)
As it is, the top pic is backpland expansion slot classification. If you take the pins off, you will down grade the board drastically... i would leave it just like that and move on.
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