1-8 Reviewing System FeaturesVolume ControlUse the volume control to adjust the volume of the system’s built-inspeakers or optional headphone set. The speakers are located in the baseof the LCD panel.You can also use the Windows sound software. To bring up the Windowsvolume control, double click the speaker icon on the taskbar (next to thesystem clock). Use the software to balance the sound between the left andright speakers.PC Card SlotsYour system PC card slots support 32-bit CardBus technology thatprovides up to 132 MB/second of bandwidth. The CardBus technologyprovides higher levels of performance than the 16-bit PC card technology.The system unit has two PC card slots that support 32-bit or 16-bit PCType II PC cards for extending the system’s capabilities. Each type of PCcard has a different function. Using your PC card slots, you can add anumber of functions to your system with a variety of cards (for example,modem, memory, Small Computer System Interface).A PC card is inserted into a PC card slot similar to inserting a diskette in adiskette drive. Press the eject button to eject a PC card.Removable slot covers keep foreign matter out of the slots when PC cardsare not used.FanThe fan cools system unit components and prevents them fromoverheating. Keep the area near the fan clear for proper ventilation.A feature of the fan is its quietness. The fan operates at less than 30 db.Rear FeaturesOn the rear of your system unit, you can find the universal serial bus(USB) ports, DC power connector, mouse and keyboard ports, and otherexternal device connectors. The following figure shows the ports andconnectors. Descriptions of each follow the figure.