Dell OptiPlex Gs Reference and Installation Guide (.pdf) - Page 70
Expansion Cards
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Expansion Cards Expansion cards can be installed on the computer's riser board (see Figure 6-3). The vertical riser board plugs into the RISER connector on the system board (see Figure 6-1) and is considered an extension of the system board. The system accommodates up to three expansion cards, which can be a mix of 32-bit PCI expansion cards and 8and 16-bit ISA expansion cards. (See Figure 6-2 for examples of ISA and PCI expansion cards.) Expansion Slots Four expansion-card connectors reside on the riser board (see Figure 6-3). Because two expansion-card connectors share slot space, a maximum of three expansion cards can be installed. • Expansion-card connectors ISA1 and ISA2 can accommodate 8- or 16-bit ISA expansion cards. • Expansion-card connectors PCI1 and PCI2 support PCI expansion cards. Because connector PCI2 shares expansion-slot space with connector ISA1, only one card of either type can be installed in the common slot. NOTE: Because of the height of the hard-disk drive, expansion-card connector PCI1 is limited to an 8.75-inch-long card. 8-bit ISA expansion card 16-bit ISA expansion card ISA2 ISA1 PCI2 PCI1 HDLED connector Figure 6-3. Riser-Board Expansion-Card Connectors 32-bit PCI expansion card Figure 6-2. Expansion Cards 6-2 Dell OptiPlex Gs and Gs+ Low-Profile Systems Reference and Installation Guide