Assistance requested identifying the correct Maths CoProcessor \ VOGONS

Assistance requested identifying the correct Maths CoProcessor

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First post, by lloydc

lloydc Offline

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Location: Australia, Sunshine Coast

Hello,
Recently I acquired the MB in the image.

As I am wanting to pimp it as much as possible, I am seeking help with identifying the correct Maths CoProcessor for the shown empty socket, thats of course if that is what the socket is for.

I have looked at some Maths CoPros, but non of them have the required 3 pins missing in the one corner.

Any assistance much appreciated.

Thank you

Reply 1 of 3, by lloydc

Posted on Today, 04:10

lloydc Offline

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Joined: Today, 03:34
Location: Australia, Sunshine Coast

Sorry, here is the second image I intended to attach.

Reply 2 of 3, by rmay635703

Posted on Today, 05:07

rmay635703 Offline

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That socket is a we bit strange but should accept any of the usual intel 486 overdrive chips, including the original 487sx which isn’t really an x87 at all.

Having one of those OEM low profile boards with soldered 486sx AND cache is pretty uncommon

Reply 3 of 3, by lloydc

Posted on 58 minutes ago

lloydc Offline

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Rank: Newbie
Posts: 3
Joined: Today, 03:34
Location: Australia, Sunshine Coast

thank you, it came from an IBM machine.

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