Mini Tower Computer's Expansion-Card Slots; Figure 1-8. Riser Board For The Midsize Computers; Figure 1-9. Em Riser Board For The Midsize Computers - Dell OptiPlex Gn Service Manual

connector and one ISA expansion-card connector share a single expansion-card
slot, resulting in a total of five expansion-card slots (see Figure 1-8).
HDLED
connector

Figure 1-8. Riser Board for the Midsize Computers

If you have the EM version of the midsize computer, the riser board for the
computer is different (see Figure 1-9). P1 is the network card connection on the
riser board. If the LED is on, the riser is receiving power, if it is off, the riser is
not receiving power.
LED
HDLED
connector

Figure 1-9. EM Riser Board for the Midsize Computers

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.
ISA3
connector
ISA2
connector
ISA1
connector
PCI3
connector
PCI2
connector
PCI1
connector
ISA3
connector
ISA2
connector
ISA1
connector
PCI3
connector
P1
connector
PCI2
connector
PCI1
connector
System Overview 1-9