Strange STacy wire?

[stephen_usher]

EDIT 2 : what you could do is to remove the CPU, then on the socket, check continuity between pin 49 and and 14. If there is continuity, as your wire is dangling in the air, I would guess that your motherboard is a revision that does not suffer from this problem and is not needed.

The alternative is to flip the MB over and see if there's a pin going through the board at that position. If there is just buzz out between the CPU pin and the underside of the board. If they're connected and connected to Vcc then you obviously have a motherboard which doesn't have the wrong connectivity to that pin. Far less destructive.

[Darklord]

Thanks gang. I'll check that, when I've got some free time.

I'm still wondering though, I mean - I've been using the Pak 68/3 board in this STacy
since like 2010? (or thereabouts), with no issues that I'm aware of.

Well...other than I've never been able to get the Pak 68/3 board to run past 40mhz.
They are rated to go as high as 50mhz. When I run it at 50mhz, it's a bit unstable. I
get glitches on screen and random crashes. At 40mhz though, it's rock-solid.

Then there's the 68882 FPU problem. I can't run a couple of the benchmark tests
that cover the FPU without an error. I just assumed I had a bad 68882 though. Keep
in mind, it passes cleanly with GemBench.

Are the problems above something that would show up if that wire was supposed to
be hooked up to pin 49?

I honestly can't remember that wire ever being hooked up. Kicking myself now for
not taking more pictures when I first got that STacy...

BTW, I did find 2 STacy motherboards that I have that don't have that wire. <shrugs>