First post, by MaTi
- Rank
- Newbie
Hi all,
Two quick questions. I bought an IIT 4C87DLC-40 coprocessor for my new 386 build.
On my board I need to jumper it for either an '80387' or '3167' type of NPU. Which of the both should I set and what is the difference?
Also, the socket ofn my board looks like this:
Do I put pin1 of the chip in position 'a1' on the board, or do I center the chip in the socket, meaning pin1 would end up in 'b2'?
Also, how do I see what pin 1 on the co-proc is? I see a small bulge on one of the four corners.. I asume thats where pin1 is.. Is that correct?
I googled for the chip to show what I mean (not my own chip):
Thanks!
Still relatively new, but spending too much time on retro already.. 😀