This is a old thread I found in a search.
I have two 'different' 486 CPU's.
One is a 'Intel Overdrive' DX40. It has a black finned heatsink covering the cap, with a slight gap on one end and in the gap there are several SMD capactors attached directly to the Purple ceramic.
Its got this written on the heatsink. Its also still on the motherboard. Is there any extra value in these CPU?
DX40 DP100
C5060054
SZ957 V11
Intel '89 '93
And the other is a 486 with the standard clean purple ceramic cap but thats attached to a fibreglass board with the Gold pins attached to the fibreglass.
Intel i486 SX
KU 80486SX - 25
C3180320
SX683
Intel 1989
I also have a rare 'purple piggyback' chip. Its got the top chip, inc label, in new condition.
Theres a picture of one on the web. google 'eesakiwi' in google images to find it.
Its a Mostec MK38P70/02J
That will bring up pics, most don't have the top chip, or label, in used condition.
maybe try this> [url=http://www.decadecounter.com/vta/pic4/mk38p70_2.jpg/url]
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