The Compaq Alphastation XP900 pedestal or rackmount enclosure backplane has a total of eight slots. It contains a Compaq Alphastation XP900-watt power supply and dedicated space for two 5.25-inch mass-storage devices. Use the following rules when configuring the Compaq Alphastation XP900 pedestal or rackmountable systems. • Use the eight-slot configuration template for the system building blocks. Write the module Compaq Alphastation XP900 and mass-storage device names in the left column beside the slot and shelf numbers. When configuring these systems, please note that quad- height modules use both the "AB" and "CD" portions of a slot. • Slot one is always reserved for the CPU module. • Slots two through eight can accommodate either two dual-height or one quad- height option. • Enter the Compaq Alphastation XP900 5-V and 12-V currents, power, the ac and dc bus loads, and I/O panel inserts required for each module and mass-storage device. The column totals must not exceed the limits listed at the bottom.