Dell OptiPlex NX1 - Manual (Page 27)

System Overview 1-15
total of five expansion-card slots (see Figure 1-9). Option 2 is an active riser
board, with a PCI-to-PCI bridge. Option 2 has two ISA expansion-card connec-
tors and five PCI expansion-card connectors. Two PCI/ISA expansion-card
connector pairs each share an expansion-card slot, again resulting in a total of
five expansion-card slots (see Figure 1-10). Both riser board options include the
P1 connector (for connecting the NIC to the riser board cable) and an LED. If
the LED is on, the riser board is receiving power; if off, the riser board is not
receiving power.
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connector
ISA3
connector
ISA2
connector
ISA1
connector
PCI3
connector
PCI2
connector
PCI1
connector
P1 connector
LED
ISA1
connector
ISA2
connector
PCI3
connector
PCI2
connector
PCI1
connector
PCI4
connector
PCI5 connector
HDLED
connector
LED
P1 connector