Trying to spare myself from posting a zillion photos…

I get the general concept of what an integrated laptop motherboard is. But the Boardsort video makes mention of gold tab bga chips. What makes it a “gold tab”? I see gold marks in corners but some are bigger than others so trying to make sense of what I’m looking at

One (or older 2) corners will have a gold line.

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Ok that’s what I was assuming made it a “tab” but some of them had gold triangles or gold circles so wasn’t certain. Thanks!

Must have a thick line

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Well crap maybe i should post photos then!

So these all count as gold tab?

confirmed now

All three are not gold tab.
They must have the thick line or the full corner gold marking.

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how am I supposed to tell the difference? All three of those chips have a gold triangle in the corner -- what makes that one not count?

BGA refers to a particular integrated circuit package that has. As in. Uses a ball grid array to attach( solder) it to a circuit board. BGA. Means Ball Grid Array. The chips that were pointed out to you as NO. Do not use the BGA method. Now. Further. You have BGA and Gold tab BGA. Gold tab being the more valuable. As is pointed out in the Boardsort price list under the CPU & CHIPS CATEGORY. Having a Gold Tab BGA on a PCB can improve its grade. Gold Tab showing it contains gold to enhance performance. Thus increasing escrap value. Look it up on Google. You can then get a feel for some different chip packages. DIP. LGA.BGA.PGA. After a while you will be able to identify a BGA. Also. You can look up part numbers for ID.
KNOWLEDGE IS POWER
Here to learn like everybody else.

I can’t understand half of what you just said and if I have to Google fine details on every board it ain’t worth it