Gateway ALR 9000 CPUs and CPU Slots, Voltage Regulator Module, Floppy Drive Controller, Figure 5: CPU Card, Symmetrical Multi-Processing

CPUs and CPU Slots

The standard system is equipped with one Pentium Pro chip installed on CPU card A which is installed in CPU card slot A. In CPU card slot B, a terminator card is installed in place of an optional second CPU card B.

Figure 5: CPU CardSymmetrical Multi-Processing

Symmetrical Multi-Processing SMP enables all CPUs in the system simultaneously to service interrupts, access system memory, and perform I/ O operations. If your operating system does not support SMP, the system adjusts the processing mode to Asymmetrical, meaning only the first CPU accepts I/O interrupts, while the successive CPUs accept only interprocessor interrupts.

Voltage Regulator Module

Each CPU must have a dedicated voltage regulator module (VRM) which adjusts the voltage supplied to the CPU.

Floppy Drive Controller

The floppy drive controller can support up to two devices of 1.44-MB or 2.88-MB format.

16 Gateway ALR 9000 User’s Guide