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So I have most of these figured out. Not sure how the photo is going to orient itself but I'll start with the K6 with metal chips and go clockwise.

K6 with metal and the unmarked chip beside them is also k6 just with the metal removed?

Pentium ceramic.

386/486 on the ones that are marked as such. The one with all the thermal paste says 5x86, the WinChip and the AMD 2900 chip would that just be IBM/VIA/Cyrix gold cap? (Pretty sure all have a gold cap on the bottom).

AMD ceramic no metal.

I have someone interested in buying a few of these as collectible items, do any of these chips stand out as something that could be worth much more than what boardsort would buy them as? I was going to try and look up each chip tonight to check but thought I'd ask here in case someone recognizes something special.

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Here to learn more so I can recycle more
My grades are my own opinion and not an official grade from Boardsort

The AM29k looks to be in really good shape. The c series is a lower end chip (instruction reduced) but is still a bit rarer.

K5 is a popular chip with retro tech users. Both for games and software. They’re a bit more stable than the pentium counterparts under load and have enough code extensions that when paired with a KM controller they can run most era software.

The 29 can fetch around $5-$10.

The k5 runs $5-$15 stats unknown. Fully working it can fetch $50 or more.
Paired with a fully tested board though the K5 is definitely a selling option at $150-$300.

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