Intel GRAMPA BURST 168-pin 486 CPU Interposer/Testing Adapter Board Vintage For Sale

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Intel GRAMPA BURST 168-pin 486 CPU Interposer/Testing Adapter Board Vintage:
$289.99
Here\'s a piece of my collection that I never got around to figuring out.
Labeled the Intel \"GRAMPA BURST\". I\'m pretty sure this is an interposer board used for debugging, testing, overclocking 486 CPUs. Potentially an internal Intel device? I can\'t find any information on it at all. The CPU socket is 168-pin.
Everything looks like it\'s in tact. Lots of hand-soldered pins and bodges.It is completely untested and is sold as-is.
Would appreciate more info on this if you have it. Thanks!
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