[UCA] ES/Unusual CPU Analysis Thread - Updated 2020-05-25

[xsecret]

The Universal Chip Analyzer is useful to test and spot counterfeits CPUs, but also to help identify CPUs without markings.

Here are two of them:



A very nice IT'S 486 ES with a new (commercially unreleased?) stepping. Could be an prototype Cx486DX4-120

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Probably a retail AMD Am486DX2-80 NV8T with printings faded out.

Check the full story here : https://x86.fr/identifying-blank-486s-with-the-uca-1/

[vinicio]

I follow with interest. Good job.

[xsecret]

With some nice findings about the process used for this sample.

Check the full story here : https://x86.fr/uca-cpu-analysis-prototype-umc-green-cpu-u5s-super33/