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Power Mac G4 (PCI Graphics): Upgrading Memory
This article has been archived and is no longer updated by Apple.
This article provides the memory specifications and upgrade options for the Power Mac G4 (PCI Graphics). Article 58426: "Power Mac G4 (AGP Graphics): Upgrading Memory" has information on upgrading the RAM in that Power Mac G4.
Products Affected
Power Mac
The Power Mac G4 logic board provides four PC-100 DIMM slots that work with industry standard PC-100 DIMMs of up to 256 MB each for a total of 1 GB. The Power Mac G4 works with 64Mbit and 128Mbit RAM. The memory should be rated at 8ns or faster.
The computer comes from Apple with one DIMM slot populated with a 64 MB DIMM. Additional DIMMs can be installed in any order, in any size. There is no performance benefit to matching DIMM sizes or installing them in pairs.
Compatible DRAM DIMMs must meet all the following specifications:
- PC-100 Synchronous DRAM (SDRAM)
- 3.3 volt
- 64-bit wide, 168-pin module
- Maximum of 16 memory devices on the DIMM
- Unbuffered; do not use registered or buffered Synchronous DRAM (SDRAM)
- Maximum height of 2.0 inches.
The computer comes from Apple with one DIMM slot populated with a 64 MB DIMM. Additional DIMMs can be installed in any order, in any size. There is no performance benefit to matching DIMM sizes or installing them in pairs.
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