Dell OptiPlex Gxi - Manual (Page 76)

6-2 Dell OptiPlex GXi Low-Profile Systems Reference and Installation Guide
E
xpansion 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 8-
and 16-bit ISA expansion cards. (See Figure 6-2 for
examples of ISA and PCI expansion cards.)
Figure 6-2. 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 ISA2 (at the top of the
card) and ISA1 can accommodate 8- or 16-bit ISA
expansion cards.
• Expansion-card connectors PCI1 and PCI2 support
PCI expansion cards.
NOTES: Connector PCI2 shares expansion-slot
space with connector ISA1, so only one card of
either type can be installed in the common slot.
Because of the height of the hard-disk drive, expan-
sion-card connector PCI1 is limited to an 8.75-inch-
long card.
Figure 6-3. Riser-Board Expansion-Card
Connectors
8-bit ISA expansion card
16-bit ISA expansion card
32-bit PCI expansion card
ISA2
ISA1
PCI2
PCI1
HDLED