Coprocessor Types

[Bouba]

Hi.

I have a problem.
My motherboard ETEQ-386 supports:

386DX : http://www.cpu-world.com/CPUs/80386/Intel-A80386DX-33%20IV.html.

and a coprocessor

Weitek 3167 : http://www.cpu-world.com/CPUs/3167/Weitek-3167-033-GCU.html.

I bought this coprocessor ULSI : http://www.cpu-world.com/CPUs/80387/ULSI-US83C87-C%2040.html.

So, according to the handbook i can mount a Weitek 3167 or a Intel 80387..... but.... the first has 121 pins (like the motherboard's socket).... the second 68....
Can I mount the ULSI coprocessor?

thanks a lot:)

bye

[fRaSsL]

You need a EMC-socket to mount both FPU's.

[Bouba]

(

You know where i can buy this adapter?

[Guest]

.... ummm... maybe i've not understood well....

If the EMC-socket has 121 pin, my motherboard has one. So i can put a 68 pns coprocessor?

thanks

[fRaSsL]

Yes EMC takes normal 387 and Weitek + compatibles. I have an adapter, to use both at the same time.

[Bouba]

Sorry but i'm a little thick; Can I use this http://www.cpu-world.com/CPUs/80387/ULSI-US83C87-C%2040.html. coprocessor directly in my EMC-socket, or i must use the adapter?

many many thanks

[fRaSsL]

You can use it directly.

[Bouba]

Thanks a lot for the spport!

[Guest]

Hi fRaSsL, i'm Bouba

I've a problem...
I've tried to mount the ULSI coprocessor and start the system, but the system doesn't recognize it.
So, (in the bios) i've tried to change the voice "Weitek processor" from Absent to Present. After reboot, the system recognize a Weitek coprocessor.... but i've installed an 80387 coprocessor (ULSI...).
It's right or not?
My motherboard is a MS-3121, i havn't the manual.... i must change a determinate jumper?

thanks a lot

bye

[Bouba]

Help please

How can i see if the coprocessor works?
Every advice is precious for me

thanks

[Elar]

Use 87test.exe:

http://www.funet.fi/pub/msdos/Simtel/emulate/87test.zip

It can test 80x87 but not Weitek.

[chipcollector]

hi Bouba!
Does your motherboard look anything like this?
http://img211.imageshack.us/img211/6383/mb1tu.jpg

[Bouba]

thanks Elar, now i try this sw.

Hi chipcollector, my motherboard is an MSI-3121. I only found this foto.... http://www.rainbow-software.org/images/hardware/ms-3121.jpg. (this is v3, i have v2, but is equals at 99% ).

The problem is that my motherboard support Weitek coprocessor and Intel 80387 coprocessor, but in the bios appear only Weitek....

thanks a lot

[Bouba]

sorry for the double post, but the right link is this: http://www.rainbow-software.org/images/hardware/ms-3121.jpg

(without the dot )

[Olivetti_Elea_9003]

Hi, I'm Bouba

chipcollector i've tried 87test. The program give me this error: coprocessor not installed or improperly installed.... .

Anyone has mounted a coprocessor, has had to change some jumpers? Or only mounted the coprocessor and the system has recognized the coprocessor alone?

thanks