Expansion slots, Expansion slots -3, Figure 6-2 – Dell OptiPlex G1 User Manual

Page 97: Expansion cards -3

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Installing System Board Options

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Nine expansion-card connectors reside on the riser board (see Figure 6-3). Because
two of the available expansion-slot spaces are shared by expansion-card connectors, a
maximum of seven expansion cards can be installed on the riser board.

Expansion-card connectors ISA1–ISA4 support 8- or 16-bit ISA expansion cards.

Expansion-card connectors PCI1–PCI5 support 32-bit PCI expansion cards.

NOTE: Because connector PCI4 shares expansion-slot space with connector
ISA1, and PCI5 shares with ISA2, only one card of either type can be installed in
each of the two shared slots.

8-bit ISA expansion card

16-bit ISA expansion card

32-bit PCI expansion card