50/50 FPU, manufacturer?

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Cpuswe



Joined: 15 Mar 2005
Posts: 2214
Location: Karlskrona, Sweden

PostPosted: Thu Sep 06, 2007 3:41 pm    Post subject: 50/50 FPU, manufacturer? Reply with quote

Hi!

Is the company named 50/50 or who made this?

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hugo929



Joined: 27 Oct 2006
Posts: 6163
Location: China

PostPosted: Thu Sep 06, 2007 6:04 pm    Post subject: Reply with quote

very cool, this is what i eagerly sought after !

in my mind, it is a product of cyrix, isn't it ?

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CPUShack



Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA

PostPosted: Thu Sep 06, 2007 6:13 pm    Post subject: Reply with quote

I beove the xTend and 5050 FPU's to be ULSI (as the part numbers 83C87) match what ULSI used

Cyrix used 83S87 and 83D87 and IIT 3C87

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debs3759



Joined: 18 Jan 2006
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Location: Northampton, Divided Kingdom

PostPosted: Fri Sep 07, 2007 11:33 am    Post subject: Reply with quote

The best way to tell would be if you have access to a board that will take a 387 in that package. If the BIOS doesn't tell you what it is, some of the older CPU ID packages would tell you who made the core, and in some cases give you further info to help identify it. If you have the right board but can't find appropriate ID software, I think I have at least one older CPU ID app that performs floating point tests thoroughly enough to identify a wide range of FPU cores.
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fRaSsL



Joined: 31 Mar 2003
Posts: 1570

PostPosted: Fri Sep 07, 2007 11:58 am    Post subject: Reply with quote

This will not work... Measuring the package will show you that it is Ulsi Smile
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