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Apple Computing Products:
macOS - Desktop Hardware
Maximum RAM Upgrade for G4 eMac 1.42GHz
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<blockquote data-quote="techiesteve" data-source="post: 1541007" data-attributes="member: 98520"><p>A simple explanation copied from the web.</p><p></p><p>Simplified, AxB </p><p></p><p>A = Datapath width in bits</p><p>B = Number of megabytes of A bit memory locations</p><p></p><p>so in your case the 2nd number (64 in both cases) refers to the datapath width in bits (64 bits or 8 bytes). The first number refers to the number of megabytes of 8 byte memory locations. Multiply the 2 and you get the size of the DIMM (64x8 = 512MB, 128x8 = 1024MB)</p><p></p><p>I used to own a 1.42GHz eMac with 2GB installed. It also takes DDR400 RAM, easily obtainable from scrap iMac non eyesight G5's that had the max 2GB installed, but runs at the slower 333MHz. The newest OS they run is 10.5.8 Leopard.</p></blockquote><p></p>
[QUOTE="techiesteve, post: 1541007, member: 98520"] A simple explanation copied from the web. Simplified, AxB A = Datapath width in bits B = Number of megabytes of A bit memory locations so in your case the 2nd number (64 in both cases) refers to the datapath width in bits (64 bits or 8 bytes). The first number refers to the number of megabytes of 8 byte memory locations. Multiply the 2 and you get the size of the DIMM (64x8 = 512MB, 128x8 = 1024MB) I used to own a 1.42GHz eMac with 2GB installed. It also takes DDR400 RAM, easily obtainable from scrap iMac non eyesight G5's that had the max 2GB installed, but runs at the slower 333MHz. The newest OS they run is 10.5.8 Leopard. [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Maximum RAM Upgrade for G4 eMac 1.42GHz
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