Installing the Presto PPC – LC and Performa 570 and
580 Series
1. The Presto PPC installs into the motherboard's CPU socket. For this reason, the
Macintosh’s original 68040 CPU must be removed using the CPU remover tool (CRT)
packaged with the Presto PPC card.
2. On the rear of the Macintosh, remove the two screws on the motherboard panel and
carefully slide the logic board out of the Macintosh.
3. Locate the PDS slot. If there is a PDS card already installed, remove it.
4. Locate the 68040 CPU in the center portion of the machine
5. Insert the CPR between the 68040 CPU and the CPU socket. Lift the CPU out of the socket
by slowly moving around the perimeter of the chip while gently pushing downward.
Carefully remove the CPU from the socket, making sure not to bend any of the pins on the
bottom of the chip and set it aside. You will install it onto the Presto PPC card in a later
step.
6. Remove the Presto PPC processor upgrade card from the anti-static package, making sure
to handle the card by the edges.
Presto PPC Installation Instructions
5
68040 CPU
CPU Remover Tool
Socket
