iMac - Original

The G4 iMac has two different memory sockets, one 200 pin which is "user friendly" and one 184 pin socket.

Standard Memory
256MB Removable
Maximum Memory
2GB
Memory Expansion (No. of sockets)
2 Expansion Sockets (200 Pin & 184 Pin)
Memory Expansion
Install 1 at a time
Memory Sizes
256MB | 512MB | 1GB
Memory Speed (Type)
PC2700 or PC2100 or PC133


The G4 iMacs use a few different types of ram. The guide below will show you what model takes what ram.

G4 iMac Flat Panel 700MHz 15"(PC133)

G4 iMac Flat Panel 800MHz 15" (PC133)

G4 iMac Flat Panel 700MHz 17" (PC133)

G4 iMac Flat Panel 800MHz 17"(PC133)

G4 iMac Flat Panel 1GHz 17" (PC2100)

G4 iMac Flat Panel 1GHz 15" (PC2700)

G4 iMac Flat Panel 1.25GHz 17" (PC2700)

G4 iMac Flat Panel 1.25GHz 20" (PC2700)

1GB Mac Memory Upgrade DDR2 PC2-4200 DIMM
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1GB Mac Memory Upgrade DDR2 PC2-4200 DIMM

$2.38

256MB Mac Memory Upgrade DDR2 PC2-4200 DIMM
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256MB Mac Memory Upgrade DDR2 PC2-4200 DIMM

$1.31

2GB iMac & PowerMac Memory Upgrade DDR2 PC2-4200 Ram
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2GB iMac & PowerMac Memory Upgrade DDR2 PC2-4200 Ram

$6.75

512MB Mac Memory Upgrade DDR2 PC2-4200 DIMM
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512MB Mac Memory Upgrade DDR2 PC2-4200 DIMM

$1.31

512MB PC133 DIMM Memory Upgrade
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512MB PC133 DIMM Memory Upgrade

$6.55

1GB Powerbook & iBook G4 Memory Upgrade DDR PC2700 Ram SODIMM
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1GB Powerbook & iBook G4 Memory Upgrade DDR PC2700 Ram SODIMM

$6.95

512MB Powerbook & iBook G4 Memory Upgrade DDR PC2100 Ram SODIMM
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512MB Powerbook & iBook G4 Memory Upgrade DDR PC2100 Ram SODIMM

$1.47

128MB Powerbook & iBook G4 Memory Upgrade DDR PC2100 Ram SODIMM
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128MB Powerbook & iBook G4 Memory Upgrade DDR PC2100 Ram SODIMM

$0.99

256MB Powerbook & iBook G4 Memory Upgrade DDR PC2100 Ram SODIMM
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256MB Powerbook & iBook G4 Memory Upgrade DDR PC2100 Ram SODIMM

$0.99

256MB Powerbook & iBook G4 Memory Upgrade DDR PC2700 Ram SODIMM
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256MB Powerbook & iBook G4 Memory Upgrade DDR PC2700 Ram SODIMM

$0.99