Upgrading the Cyberstorm PPC from 68040 to 68060 CPU
The Cyberstorm PPC Turbocard from 1997 for the Amiga 3000/4000 comes with two CPU's in different configurations: 1. CPU: Motorola 68040 or 68060 2. CPU: PowerPC 604e @ 150 / 180 / 200 / 233 MHz In this tutorial we want to describe how to change the Motorola 68040 with a 68060 CPU. Overview: Cyberstorm PPC with a 68040 and 180 MHz PowerPC CPU Step by step Guide: Install (copy) 68060.library and 68040_dummy.library to Libs: Rename or delete the original 68040.library in Libs: Rename the 68040_dummy.library to 68040.library Shut down the Amiga 4000 Unplug the Cyberstorm PPC card from the mainboard Remove the heatsink and cooler of the PowerPC CPU and also the memory modules (for better accessibility) Extract the 68040 CPU carefully with this tool; don't use a screwdriver!!! (be aware that this is a BGA socket => very vulnerable) Intel Chip Remover tool Now you can see the voltage selector jumper in the center of the socket 5V (68040) and 3.3V (68060) voltage selector jumper D