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Can You Help me Identify These Intel CPU Dies?

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First post, by Anthropic

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Hello, I'm a first time poster. I'm wondering if the brain trust here can help me identifying some Intel items.

I recently found one of the those "The Journey Inside: The Computer" educational kits that Intel distributed in the mid/late 1990s. It's the Third Volume version from 1998, like the ones on this page.

The attachment Intel_Chip_Kit_Inside.JPG is no longer available

It contains a Pentium MMX marked "Mech Sample", a wafer of what looks like some sort of memory product, and two CPU dies in a baggie which I'm trying to identify.

The attachment Intel_Pentium_MMX_Mech_Sample.jpg is no longer available

I think based on die shots I've seen, that the smaller die is some variety of Pentium but I'm not sure what the larger die is.

The attachment Intel_Smaller_Die.jpg is no longer available

The larger die is about 1.2cm by 1.1cm. Could this be a Pentium Pro or a Klamath, given that I think the kit is from 1998?

The attachment Intel_Larger_Die.jpg is no longer available

Here is a close up shot of the wafer:

The attachment Intel_Wafer_Close.JPG is no longer available

I took these photos with my iPad, so they're not fantastic. Thanks for any help you guys can give me in identifying these thing.

Reply 1 of 4, by TELVM

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Anthropic wrote:

... the smaller die is some variety of Pentium but I'm not sure what the larger die is.

Intel_Smaller_Die.jpg

^ Looks like a P54C.

Anthropic wrote:

The larger die is about 1.2cm by 1.1cm. Could this be a Pentium Pro or a Klamath, given that I think the kit is from 1998?

Intel_Larger_Die.jpg

^ Looks like a P55C MMX.

Let the air flow!

Reply 2 of 4, by sliderider

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Wow. Eveready Classic batteries. I haven't seen them in years. Are they still made? If those are vintage batteries you should check them for leakage/corrosion. They'll destroy the foam lining of that case if you leave them in there.

Reply 3 of 4, by Anthropic

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TELVM wrote:
^ Looks like a P54C. […]
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Anthropic wrote:

... the smaller die is some variety of Pentium but I'm not sure what the larger die is.

Intel_Smaller_Die.jpg

^ Looks like a P54C.

Anthropic wrote:

The larger die is about 1.2cm by 1.1cm. Could this be a Pentium Pro or a Klamath, given that I think the kit is from 1998?

Intel_Larger_Die.jpg

^ Looks like a P55C MMX.

Wow, that looks spot on. Thank you. it hadn't occurred to me that the P55C MMX would look so different than the P54C.

sliderider wrote:

Wow. Eveready Classic batteries. I haven't seen them in years. Are they still made? If those are vintage batteries you should check them for leakage/corrosion. They'll destroy the foam lining of that case if you leave them in there.

As far as I can tell, there's no corrosion on the batteries (yet). It does bring up a good point about what to do with this set. In addition to the "Chip Kit" box there are two VHS tapes (one for the teacher and one for the students) that are still sealed. There's also a thick Teacher's Manual that's still in the shrinkwrap.

From a collector's standpoint I'd love to keep this all together in this close to mint condition but as you noted, eventually nasty things will start happening if I keep the batteries in here.

Reply 4 of 4, by NitroX infinity

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You could try and get fake batteries; just empty shells that look like the original but have none of the messy goo inside.

You'd probably have to make them yourself or have them made though 😜

Or take a picture of the batteries and put that in the kit.

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