On 4 Sep 2001, at 21:38, Ian. wrote:
>The computer that I use most often is a 386/40. Its quiet nifty
>for a 386 which is why it suits my purposes. Its an SX machine
>and lacks a 387 co-processor. My question is this. 387s
>turn up quiet often but they are always 387/33s or slower.
>So far Ive never seen a 387/40. If I was to put one of these
>slower co-processors into my machine would they slow everything
>down? Perhaps they wouldnt even work.
Well... a 387/33 might work. I'm not sure it would be reliable,
though. I think the only way to know would be to get one and test it.
It would be overclocked at 40MHz, but seeing as how it's a coprocessor,
designed to do floating point operations as quickly as possible, there
might not be anything clock critical on it.
I do have a 387/40, in one of my SurvPC. I'm afraid I won't part with
it at this time, but I do know that they were produced, in small
numbers.
>The reason Id like a 387 is that some DPMI programs use one.
>otherwise an emulator has to be used.
I have used floating-point emulators, and it does really slow things
down. I would suggest that you purchase one of those 387/33s and give
it a try. It won't hurt your system - might make it not function
properly, but it won't hurt anything, so long as you get it the right
way 'round in the socket. (Which, IIRC, was keyed, so that'll be
harder to get wrong, too.)
Anthony J. Albert
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Anthony J. Albert [EMAIL PROTECTED]
Systems and Software Support Specialist Postmaster
Computer Services - University of Maine, Presque Isle
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