Looking for a Intel multibus 88/30...

[Lyle Bickley]

On Tue, 18 Jun 2019 05:24:04 +0000
dwight <dkelvey at hotmail.com> wrote:

> Hi Lyle
>  What is a 88/45? I look up the 310 systems on the web but none
> mention 88/45.

Good catch, Dwight! It was a typo. I have two 88/45 boards and don't
need more. FYI, here's a link describing the 88/45:
http://bit.ly/2N6zKGe

Here's the description of the iSBC 88/30 that I NEED in the maintenance
manual for the System 310:
http://bit.ly/2MWMij5

> Is the PAL for address decoding or something more complicated?

Not sure. Likely for address decoding but I haven't tracked down
what else it might do. Another System 310 restorer had the identical
symptoms and issues with his 310. To be more specific: The system
begins startup and then halts (run light off) after about a second of
running. The hardware manuals says that error is either an iSBC error
or DMA hanging the system. I pulled all the DMA I/O cards from the
system to make sure it wasn't DMA...

Repeating the CORRECTION: I NEED AN iSBC 88/30!!!

Thanks again, Dwight!!!

Cheers,
Lyle
______________________________
> From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Lyle
> Bickley via cctalk <cctalk at classiccmp.org> Sent: Monday, June 17,
> 2019 1:39 PM To: cctalk at classiccmp.org
> Subject: Looking for a Intel multibus 88/45... (minor corrections...)
> 
> I'm in the process of restoring an Intel 310 system. I had it working
> to the point where it was trying to boot - when the 88/45 processor
> began to fail intermittently and then solidly. My debugging seems to
> indicate that the problem is in a PLD - which is a serious bummer.
> 
> I have preserved the ROMS (which have built-in diagnostics/debugging
> and boot capability for both floppy and Winchester hard disks) as
> files. I will make these ROM files available to Al for posting on
> bitsavers.
> 
> If someone on this list has an Intel 88/45 (or Intel 310) who would be
> willing to part with it, please contact me off list. I can to either
> do a trade or cash purchase...
> 
> Cheers,
> Lyle
> 
> --
> 73   NM6Y
> Bickley Consulting West Inc.
> https://bickleywest.com
> 
> "Black holes are where God is dividing by zero"



-- 
73   NM6Y
Bickley Consulting West Inc.
https://bickleywest.com

"Black holes are where God is dividing by zero"