Mini Tower Computer's Expansion-Card Slots; Figure 1-11. Riser Board For The Midsize Computer (Option 2); Figure 1-12. Em Riser Board For The Midsize Computer - Dell OptiPlex GXa Service Manual

1-14 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual
ISA2
connector
ISA1
connector
HDLED
connector

Figure 1-11. Riser Board for the Midsize Computer (Option 2)

If you have an EM version of the OptiPlex GXa midsize computer, the riser
board includes the P1 connector (for connecting the NIC to the riser cable) and
an LED (see Figure 1-12). If the LED is on, the riser is receiving power; if off,
the riser is not receiving power.
LED
HDLED
connector

Figure 1-12. EM Riser Board for the Midsize Computer

Mini Tower Computer's Expansion-Card Slots

The mini tower computers have seven expansion-card slots. The riser board has
four ISA expansion-card connectors and five PCI expansion-card connectors.
Two PCI expansion-card connectors share expansion-card slots with two ISA
connectors, resulting in a total of seven expansion-card slots (see Figure 1-13).
The riser board is active, incorporating PCI-to-PCI bridging.
PCI5
connector
PCI4
connector
PCI3
connector
PCI2
connector
PCI1
connector
ISA3
connector
ISA2
connector
ISA1
connector
PCI3
connector
P1
PCI2
connector
PCI1
connector