warner@ecs.umass.edu (Lee Warner) (02/13/91)
As an undergrad, my Mac SE has served me well for quite awhile. I have decided that it is a fine time to upgrade the Mac SE with a faster 32-bit processor and lots of memory. Before making a purchasing decision, I would like to field recommendations from the Internet mac community. Issues of Prime importance to the decision are: (1) Are there any software compatibility problems with using a third-party CPU replacement? (2) Given the SE hardware, is there an optimum performance vs. price pointto consider? That is, would it be a waster of money to buy a 33 MHz 68030 replacement in comparison to a 25 MHz version due to slow hardware constraints on the existing SE motherboard. Also, am I wrong in assuming that the benefits of a 33 MHz decision over a 25 MHz decision would not be realized unless considerable money was invested in a fast SRAM I-Cache for the 33 MHz device? (3) What about power supply loading and heat dissipation? (4) Has anyone good recommendations? (5) What about A/UX compatibility? I am sure that in the near future I will move into a Unix-Mac environment. If anyone has recommendations/advice on accelerators, I would be very interested in hearing from you. Also, I would like to hear from "Mac Speedsters" that have successfully used accelerated Macs for semi-serious scientific and engineering computation: MO calculations, finite-element analysis, modelling in general....