Silicon Graphics 230, User Manual

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6 007-4263-001
1: System Setup
• The Silicon Graphics 230 Visual Workstation has three 5.25-inch and four 3.5-inch
drive bays, as shown in Figure 1-5. All three 5.25-inch drive bays are externally
accessible from the front panel. Two of the 3.25-inch drive bays are located on the
front panel—the other two are housed and accessible inside the chassis.
• The Silicon Graphics 230 Visual Workstation is cooled by three fans—one front
system fan and two rear system fans (see Figure 1-4). The front fan pulls the cool air
into the chassis, while the two rear fans pull the warm air out of the chassis. One
rear fan is located on the rear panel; the other rear fan is located in the power
supply.
• The power supply is switch-selectable for 110V versus 220V AC power. The power
supply converts AC power to DC voltages which are used by the system board, the
fans, and the 3.5-inch and 5.25-inch drives. It is located above the system board on
the rear panel.
• The system board is mounted parallel to the right side panel using a one-screw
mounting system (see Figure 1-2 for the location of the system board screw). For an
overview of the system board and its components, see Chapter 3.