[comp.sys.mac] Accelerator boards and PMMU-compatibility for System 7.0

eirikur@ddif.dec.com (Eirikur Hallgrimsson) (07/20/89)

In article <2251@csun.edu>, robin@csun.edu (Robin Goldstone ) writes...
> 
>The July issue of MacUser has an ad for a 16Mhz 68000 accelerator board for 
>the Mac SE from a company called DPI in Milpitas, CA.  The price is $269
>which is quite a bit less than other accelerator boards I have seen advertised
>(i.e. Radius). Here is what they say about it:
>           "The 16MHz 68000 based accelerator board that doubles
>            the speed of your Mac SE.  It's fully compatible
>            with all Mac SE software and can be turned off via the
>            control panel for speed sensitive applications."
>It has a 30 day MBG.  Has anyone tried one of these out or heard of this 
>company?   They also make removable cartridge drives.     

Peronal opinion:  Starting now, I would not buy an accelerator that does not
have a socket for plugging-in the PMMU chip to enable use of virtual memory
when system 7.0 comes out.  I have asked Radius about putting the PMMU onto my
Radius accelerator and they have said, "Sorry, there is no way."

I haven't seen an accelerator advertizing PMMU-compatibility, has anyone else?

Eirikur Hallgrimsson
eh@ddif.dec.com

Bob_LaserMan_Murrow@cup.portal.com (07/22/89)

The Gemini series of mac+ and SE accelerator cards support both the 68020
and 68030 chips. I just upgraded my 68020 card at 16mhz to a 68030 at 25mhz
for $395. I am a dealer for these cards and can get you one at substantial
discount from list. They support 7.0, and Virtual from Connectix? now. I use
it to run a major BBS on Fidonet. The cards are fast and reliable. Service is
great from TSI who makes them. The card also has no probelm with SilverLinings
new release 5.1, in fact I have yet to find a program that doesnt like it but
you can always boot on your original chip if you need to.
Bob Murrow
laserman@cup.portal.com
SYSOP MacDazeBBS 408-253-3926 in Cupertino,ca.
SYSOP PhoenixIIa 408-252-6801 in Cupertino, Ca., 400megs online files

GDAU100@BGUVM.BITNET (Jonathan B. Owen) (07/24/89)

I have an Orion Accelerator board for my SE.  16Mhz, 68020, 2M RAM
made by MacPeak.  This board has a socket for a PMMU.  I have not
tried it out since I am not sure about PMMU pricing (I privatly own
the SE).  When system 7.0 comes out and PMMUs cost about $200, It
will be well worth the "upgrade".

                                    Hope this helps.

                                                    JB