Pulled FPU from an Asante… can you do anything with it?

[iantm]

I pulled FPU from an Asante MacCon because it doesn't need it with an SE/30. I think it's a 68882 but I haven't verified that in anyway. Nor have I tested it per se, because I took it out before even plugging in the Asante.

I wondered if it's useful to anyone else. Could you pop it into a IIsi, for instance with a socket?

Of course I doubt these old chips are as plug-n-play as that.

If there is some sort of use like that for it, and you want it… DM me. Otherwise I'll just hold on to it, it's kind of a cute little IC.

 

[Nixontheknight]

I pulled the 68882 FPU from an Asante MacCon because it doesn't need it with an SE/30.

I wondered if it's useful to anyone else. Could you pop it into a IIsi, for instance with a socket?

Of course I doubt these old chips are as plug-n-play as that.

If there is some sort of use like that for it, and you want it… DM me. Otherwise I'll just hold on to it, it's kind of a cute little IC.

Oh yeah, the 68882s are plug and play with any 68k mac from the late 80s or early 90s, unless they have a socket for a 68881

 

[iantm]

Huh. I did not know that. And I didn't realize how many Macs I'm interested in (e.g. LC III) would take one. I forgot about that.

So… I might not want to get rid of it just yet. It's not off the table. But I want to look into it more now.

 

[iantm]

I’m going to guess it’s legit and it might be useful at some point for an accelerator or something. If I’m reading correctly this is from 1992.

 

[JeffC]

Oh yeah, the 68882s are plug and play with any 68k mac from the late 80s or early 90s, unless they have a socket for a 68881

You can use a 68882 in place of a 68881, for instance in a Mac II, as long as both chips are the same package (PGA).

 

[Nixontheknight]

You can use a 68882 in place of a 68881, for instance in a Mac II, as long as both chips are the same package (PGA).

it's a QFP 882, so you can't use that in an 881 socket

 

[iantm]

I'm glad I asked — didn't know there was this much variance. How do you know it's a QFP vs… whatever other possibilities it could be? The one the I would not want is for it to fry something if I ever tried to use it.

 

[ClassicHasClass]

This is a bit of an oversimplification, but an easy discriminator is QFPs have pins on the sides and PGAs have pins underneath. The good news is you can't easily harm them by accidentally putting one in the wrong socket; even if they fit they won't make any connections.