Dell OptiPlex GX110 Service Manual - Page 27
procedures are provided for the various chassis configurations in s 4, 5
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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 1-11). The riser board is active, incorporating PCI-to-PCI bridging. The mini tower riser board includes 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. LED PCI5 PCI4 PCI3 PCI2 PCI1 ISA4 ISA3 ISA2 ISA1 P1 connector HDLED connector The system board has various accommodations for system upgrades including: Microprocessor upgrade Main memory expansion Video memory expansion These upgrades are summarized in the following subsections, and installation procedures are provided for the various chassis configurations in Chapters 4, 5, 6, and 7. On the OptiPlex GX1 and OptiPlex NX1 systems, the microprocessor and secondary L2 cache memory are implemented in an SEC cartridge/heat sink assembly. Upgrade to a higher-performance microprocessor is accomplished by snapping out the old assembly and installing an upgrade assembly as higher-performance microprocessors become available. System Overview 1-15