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
  • Desolder the jumper from 5V, move and solder it to 3.3V


















  • Locate the system jumpers on the board (see the Overview picture above), and
    move jumper 5 from 68040 to 68060 position.























  • Install the 68060 CPU into the socket















  • If you don't plan to overclock the new installed CPU it's not mandatory to deploy a heatsink with or without a fan, but I highly recommend it, to extend the lifetime of the chip.
Further informations, especially if you want to overclock the Motorola CPU: here

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