Megalextoria
Retro computing and gaming, sci-fi books, tv and movies and other geeky stuff.

Home » Digital Archaeology » Computer Arcana » Apple » Vintage Macs Group » RE: Unknown board for a Mac Plus?
Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend 
Switch to threaded view of this topic Create a new topic Submit Reply
RE: Unknown board for a Mac Plus? [message #399576] Tue, 08 September 2020 13:17 Go to next message
vintage-macs is currently offline  vintage-macs
Messages: 425
Registered: April 2014
Karma: 0
Senior Member

> From: Dylan McDermond <dylan@mcdermond.net>
> Date: Sep 07 08:53PM -0700

> It?s a 68030 processor upgrade (with 68882 coprocessor). A very nice
> upgrade and should bring it close to an SE-30 in performance.
>
> I?m not quite sure what the double-row header on the right side is for.

Looks like a connector for the SE expansion slot. 96 pins (assuming there
are three rows of them) is a clue.

Jeff Walther



--
--
-----
You received this message because you are a member of the Vintage Macs group.
The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml
To post to this group, send email to vintage-macs@googlegroups.com
To leave this group, send email to vintage-macs+unsubscribe@googlegroups.com
For more options, visit this group at http://groups.google.com/group/vintage-macs

Support for older Macs: http://lowendmac.com/services/
---
You received this message because you are subscribed to the Google Groups "Vintage Macs" group.
To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/vintage-macs/ad4e93c8920c0 ff0af637dc48d69f0c7.squirrel%40webmail.prismnet.com.
Re: Unknown board for a Mac Plus? [message #399577 is a reply to message #399576] Tue, 08 September 2020 13:20 Go to previous messageGo to next message
Dylan McDermond is currently offline  Dylan McDermond
Messages: 133
Registered: August 2012
Karma: 0
Senior Member


> On Sep 8, 2020, at 10:17 AM, 'Jeff Walther' via Vintage Macs <vintage-macs@googlegroups.com> wrote:
>
> Looks like a connector for the SE expansion slot. 96 pins (assuming there
> are three rows of them) is a clue.

That’s what I thought at first but I could only see two rows of pins. However my eyes aren’t what they used to be.

- Dylan

--
--
-----
You received this message because you are a member of the Vintage Macs group.
The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml
To post to this group, send email to vintage-macs@googlegroups.com
To leave this group, send email to vintage-macs+unsubscribe@googlegroups.com
For more options, visit this group at http://groups.google.com/group/vintage-macs

Support for older Macs: http://lowendmac.com/services/
---
You received this message because you are subscribed to the Google Groups "Vintage Macs" group.
To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/vintage-macs/4A05A150-A6BF -4CCF-A95D-665C9019731D%40mcdermond.net.
Re: Unknown board for a Mac Plus? [message #399578 is a reply to message #399576] Tue, 08 September 2020 13:24 Go to previous messageGo to next message
Antonio Rodríguez is currently offline  Antonio Rodríguez
Messages: 8
Registered: October 2012
Karma: 0
Junior Member
I first thought about that, but there are clearly only two rows of pins,
and, as you say, the SE slot has three of them. If you look more
closely, in the area above the 68030 and 68882 with the four DIP chips
(two 74646, and two unknown ones, maybe PALs), you can see the legs of a
large DIP-64 socket, maybe a male one to fit in place of the Mac Plus'
68000 CPU. If it were an SE slot accelerator, the socket wouldn't be
needed. So I think it is a Mac Plus accelerator.

Sincerely,

Antonio Rodríguez

El 08/09/2020 a las 19:17, 'Jeff Walther' via Vintage Macs escribió:
> Looks like a connector for the SE expansion slot. 96 pins (assuming there
> are three rows of them) is a clue.
>
> Jeff Walther

--
--
-----
You received this message because you are a member of the Vintage Macs group.
The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml
To post to this group, send email to vintage-macs@googlegroups.com
To leave this group, send email to vintage-macs+unsubscribe@googlegroups.com
For more options, visit this group at http://groups.google.com/group/vintage-macs

Support for older Macs: http://lowendmac.com/services/
---
You received this message because you are subscribed to the Google Groups "Vintage Macs" group.
To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/vintage-macs/ff6e2958-ec71 -f798-4906-59f21f684ac7%40gmail.com.
Re: Unknown board for a Mac Plus? [message #399651 is a reply to message #399577] Wed, 09 September 2020 06:21 Go to previous message
Phil Hosie is currently offline  Phil Hosie
Messages: 7
Registered: September 2020
Karma: 0
Junior Member


On Wednesday, September 9, 2020 at 1:21:37 AM UTC+8, Dylan McDermond wrote:
>
>
>
>> On Sep 8, 2020, at 10:17 AM, 'Jeff Walther' via Vintage Macs <
> vintag...@googlegroups.com <javascript:>> wrote:
>>
>> Looks like a connector for the SE expansion slot. 96 pins (assuming
> there
>> are three rows of them) is a clue.
>
> That’s what I thought at first but I could only see two rows of pins.
> However my eyes aren’t what they used to be.
>
> - Dylan
>
>
Hi Dylan....confirmed 2 rows pins

--
--
-----
You received this message because you are a member of the Vintage Macs group.
The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml
To post to this group, send email to vintage-macs@googlegroups.com
To leave this group, send email to vintage-macs+unsubscribe@googlegroups.com
For more options, visit this group at http://groups.google.com/group/vintage-macs

Support for older Macs: http://lowendmac.com/services/
---
You received this message because you are subscribed to the Google Groups "Vintage Macs" group.
To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/vintage-macs/cb983ebd-8c51 -48eb-8605-3066792d727bo%40googlegroups.com.

  Switch to threaded view of this topic Create a new topic Submit Reply
Previous Topic: Options
Next Topic: Re: Digest for vintage-macs@googlegroups.com - 2 updates in 1 topic
Goto Forum:
  

-=] Back to Top [=-
[ Syndicate this forum (XML) ] [ RSS ] [ PDF ]

Current Time: Thu Mar 28 05:28:37 EDT 2024

Total time taken to generate the page: 0.01259 seconds