Do you find the diference?

[Oddie_]

These are two of my 486 cpu's. Could it be that the two processors were manufactured at same moment?

[chipcollector]

haha yeah, it looks like it. The only difference is the B from the C on the back. NICE

[Cpuswe]

Wow! Keep those two together, they could be worth money some day!

[JAC]

Is it a unique serial number, or just a batch code?

[sammyc]

Wow - That is really smart. They must have came from the same batch of systems I guess?

How many were made in each batch? I'm guessing a batch is 1 silicon wafer?

[Mixeur]

I don't think batch are related to wafers.
Batch are related to manufacturing entire cpu, not only the silicon core. And a lot of time plant that made silicium core are not plants that made entire cpu.

[sammyc]

maybe that's the difference between the B and C then.

[Mixeur]

I think inscription on the bottom are related to core itself whereas inscription on the top, to the entire cpu.

Maybe different wafer for these two.

On the top, the serial code after the batch code is missing on these cpus

[JAC]

none of my 8 DX4-100 cpus (different sspecs) have another batch code after the top serial code.


someone must know what all the numbers mean on the bottom of the cpu??????????? all we are doing is guessing.

[ahia123]

I agree with JAC. CPU collecting is very similar to stamp and coin collecting and they have cataloges for everything. I feel we need to establish something similar. Many CPU collectors in this forum (and outside) are doing a great job collecting chips but I feel the lack of an "official" reference.

[Mixeur]

Yes. I think we need help from Intel or AMD employees, because a lot of information is not findable on the net...

[jd]

......silently waiting on a responds from Elar ,hehe!










Glin

[Oddie_]