Upgrade Options; Microprocessor/L2 Cache Upgrades; Main Memory Expansion; Figure 1-9. Riser Board For The Mini Tower Computer - Dell OptiPlex GXa Service Manual

PCI5
connector
PCI4
connector
PCI3
connector
PCI2
connector
PCI1
connector

Figure 1-9. Riser Board for the Mini Tower Computer

U
pgrade Options
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,
and 6.

Microprocessor/L2 Cache Upgrades

On the Dell OptiPlex GXa 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.
Main Memory Expansion
The three DIMM sockets on the system board can accommodate combinations
of 16-, 32-, 64-, and 128-MB DIMMs up to a total memory capacity of
324 MB. Main memory can have either 72-bit parity (ECC) DIMMs or 64-bit
nonparity DIMMs.
ISA4
connector
ISA3
connector
ISA2
connector
ISA1
connector
HLED
connector
System Overview 1-11