The Commodore power supply does not have the sufficient Wattage to drive an accelerator and a common modification consists in replacing the Commodore power-supply circuitry with a more potent power supply. In this case, the manufacturer's circuitry has been replaced with a 100W Pico PSU.

• Pico PSU unit - the higher the Wattage, the better.
• The power-supply for the PSU unit - it should match the Wattage (or better) of the PSU unit.
• A standard Commodore power supply.

The modification consists in opening the Commodore power-supply and removing the circuitry by desoldering the wires off the board. It seems that typically Commodore makes very solid joints between the wires and the circuitry such that you will most likely need a soldering iron that is capable of about 400 - 450C.

Once the original circuitry is removed, the power-supply for the PSU unit must be opened. Usually this involves unscrewing the casing however, some power-supplies are glued shut such that you may need to use a saw to cut through the plastic.

With the new power-supply opened, the wires from the Commodore PSU have to be soldered onto the new power-supply. It is nice if you can also remove the ATX power socket such that you can solder the wires directly onto the board. Also, desolder the wires leading to the power-jack because the power-jack will not be used for this modification (you can leave it like that, but this is a cleaner way).

As a reference for soldering the wires back together, you can use the older tutorial on refurbishing a PC ATX power supply in order to get the colors right. It is highly indicated that you use an Ohmmeter to measure which wires go to what pins.