accelerator

I just finished cleaning, recapping, and reassembling an SE. It had a MicroMac MultiSpeed accelerator in it when I got it. The machine boots to the '?' disk without the accelerator installed. With the accelerator installed, I get this: So I'm guessing one of the SIMMs is bad (I think there...

In my SE/30 I have a MicroMac DiiMO 50MHz 68030 PDS accelerator card with an Asanté MacCon PDS Ethernet card plugged into its PDS pass-through. I recently acquired a RasterOps ColorBoard 264/30 and was intending to swap it in for the MacCon. When I install it on top of the MacCon and turned the...

The mythical beast that is the PPC601 Upgrade card, and the LC475, smashed together! This started life as a Japanese LC475 (no different to any other 475, but it's from Japan and therefore, cooler than yours). It actually came already with a 32MB SIMM in it and 2 x 512kb VRAM SIMM's, but no...

Some of you may be aware of the PAK68 line of open source accelerators, originally published in the German C't Magazine in the 1990's. This was intended to be a 'universal' 68000 accelerator, for the Atari ST line, primarily, but with modifications you can make it work in an Amiga or a...