Dell OptiPlex GX1 - System Setup Screens

System Overview 1-13
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The OptiPlex NX1 computer has one PCI expansion-card connector on the riser
board (see Figure 1-7). The computer automatically assigns any required mem-
ory space, IRQ lines, and DMA channels to an installed PCI expansion card
during system start-up. The Wakeup On LAN power connector on the riser
board supports an optional NIC expansion card with Wakeup On LAN capabil-
ity. The power LED lights up when DC power is applied to the riser board.
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The OptiPlex GX1 low-profile computers have three expansion-card slots.
The riser board has two ISA expansion-card connectors and two PCI
expansion-card connectors. One PCI expansion-card connector and one ISA
expansion-card connector share a single expansion-card slot, resulting in a
total of three expansion-card slots (see Figure 1-8). The low-profile computers
have a passive riser board, with no PCI-to-PCI bridge. The riser board includes
the P1 connector (for connecting the NIC to the riser board cable) and an LED
(see Figure 1-8). If the LED is on, the riser board is receiving power; if off, the
riser board is not receiving power.
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The OptiPlex GX1 midsize computers have five expansion-card slots. The riser
board is offered in two options. Option 1 is a passive riser board, with no PCI-
to-PCI bridge. Option 1 has three ISA expansion-card connectors and three PCI
expansion-card connectors. One PCI expansion-card connector and one ISA
expansion-card connector share a single expansion-card slot, resulting in a
total of five expansion-card slots (see Figure 1-9). Option 2 is an active riser
Wakeup On LAN
power connector
PCI1 connector
power LED
ISA2 connector
LED
PCI2
connector
PCI1
connector
HDLED
connector
ISA1
connector
P1 connector