Korg Pa3X 76-keys User Manual page 258

Installing additional Sampling RAM (EXB-M256)
254
Installation
Be sure the module is correctly inserted. If not, extract it
5.
and repeat the operation.
Place the duct tape (e) in the same position it was before
6.
replacing the RAM module, and slide the switch (d) to the
ON position.
Close and secure the compartment cover (a) by using the
7.
two previously removed screws (b).