Specifications

Power Mac G5 (Late 2004) Troubleshooting - 2
General Information
Results of Mixing PC2100, PC2700, and PC3200 RAM
The table below describes what happens if you install PC2100, PC2700, or PC3200
memory in the Power Mac G5 computer.
PCI and AGP Cards
Power Mac G5 computers have four expansion card slots, three of which accommodate
Peripheral Component Interconnect (PCI) cards and one that accepts an advanced
graphics port (AGP) video card. AGP cards and PCI cards have different connectors, so
you cannot insert a PCI card into the AGP slot.
Note: Maximum power consumption for all four expansion slots (the three PCI expansion
cards and the AGP card) should not exceed 90 watts (W).
When only PC2100 DIMMs are
installed
The computer makes three single tones
instead of the startup sound. The LED on the
front of the computer flashes three times, and
the computer does not startup.
When a mix of PC2100, PC2700, or
PC 3200 DIMMs is installed
The computer starts up normally, but neither
the computer nor Apple System Profiler
recognizes the PC2100 memory.
When no memory is installed or
memory is not installed correctly
The computer does not make a normal startup
sound. Instead, there is a single tone, and the
computer’s front LED flashes about once
every 5 seconds.