On 4/1/2012 10:00 PM, David Iwanicki wrote:
I have a Dove Racer 030 installed in one of my SE units. The processor
slot on it is socketed, so perhaps someone swapped in an 020 for the
original 030 on yours?
I added a math coprocessor to the Racer as well, it's a really nice
speed boost. Make sure you install the correct system extension so you
get full benefit of the upgrade, if you choose to use it.
Sent from my iPhone
The 68020 and 68030 aren't pin-compatible as far as I know, so if
someone's swapped them, it's not likely to work.
From a quick look at some old MacWorlds and books the Googles turned
up, I found the following table:
*Manufacturer/accelerator**Logic board**CPU speed* *List price (1991)*
Dove Marathon 020 SE 16 699
Dove Marathon 030 Plus, SE, Mac II 16 699
Dove Marathon 030 SE, SE 30, Mac II, IIx 32 1599
So, there was a 68020 upgrade for SE, as well as an '030 upgrade
apparently. The one marked "030x" specifically seemed to be for the Mac
IIx, with a faster 68030. I wonder if they went the route some other
companies did (Daystar? Can't remember) and made one base accelerator
with various adapters for different Macs.
At any rate, it's a vaguely puzzling situation. Some pictures or scans
of the board might be interesting to see. I wonder if at some point in
its life, someone harvested the '030 for something and stuck a spare
'020 on it to avoid losing it or something.
Scott
--
-----
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 [email protected]
To leave this group, send email to [email protected]
For more options, visit this group at
http://groups.google.com/group/vintage-macs
Support for older Macs: http://lowendmac.com/services/
