The invention relates to an interlock assembly for a spindle mixer where the interlock assembly includes a cup guide, an actuator pin, and an interlock mechanism. The third control signal is enabled when at least one of the banks performs the self-refresh operation or auto-refresh operation even though it is in the active state. A corresponding non-free index is set for a different type of low speed memory. Once the platform specific information instances have been collected for each platform to be supported, the platform specific information instances are stored in a multi-platform firmware.