The Apple iMac 600 Graphite/Snow uses SDRAM DIMM PC133 133MHz, PC100 100MHz memory upgrades as listed in the detailed specifications below. All memory and other upgrades compatible with this system are listed on this page.

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Memory Type SDRAM DIMM PC133 133MHz, PC100 100MHz
Base Memory 128MB (Removable) 256MB (Removable)
Upgrade Slots 2 Sockets
Maximum Memory 1GB
Maximum Module Size 512MB
CPU & Chipset IBM PowerPC G3 600 MHz
Bus Architecture ~
Manufacturer Part Numbers
  • M7680LL/A
  • M8492LL/A
  • M8492LL/C
  • M8546LL/A
  • M8546LL/C
Part Number 22.1C3
133MHz 168pin CL3
In Stock
$7.99
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Part Number 22.1C3H
133MHz 168pin CL3
In Stock
$12.99
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Part Number 21.1C3
100MHz 168pin CL3
In Stock
$15.99
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Part Number 22.5C3
133MHz 168pin CL3
In Stock
$15.99
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Part Number 21.2C3
100MHz 168pin CL3
In Stock
$18.99
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Part Number 22.2C3
133MHz 168pin CL3
In Stock
$18.99
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Part Number 21.5C3
100MHz 168pin CL3
In Stock
$20.99
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Part Number 21/64mC3
100MHz 168pin CL3
Call to Order
$23.99
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Part Number 21.1C3H
100MHz 168pin CL3
In Stock
$24.99
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Part Number 22.5C3H
133MHz 168pin CL3
In Stock
$24.99
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Part Number 21.2C3H
100MHz 168pin CL3
In Stock
$29.99
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Part Number 22.2C3H
133MHz 168pin CL3
In Stock
$29.99
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Part Number 22.5C3-2
133MHz 168pin CL3
In Stock
$30.99
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Part Number 22/64mC3
133MHz 168pin CL3
Call to Order
$30.99
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Part Number 21.5C3H
100MHz 168pin CL3
In Stock
$32.99
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Part Number 21.2C3-2
100MHz 168pin CL3
In Stock
$37.99
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Part Number 21/64mC3H
100MHz 168pin CL3
Call to Order
$37.99
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Part Number 22.2C3-2
133MHz 168pin CL3
In Stock
$37.99
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Part Number 21.5C3-2
100MHz 168pin CL3
In Stock
$40.99
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Part Number 22.5C3-2H
133MHz 168pin CL3
In Stock
$49.99
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Part Number 22/64mC3H
133MHz 168pin CL3
Call to Order
$49.99
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Part Number 21.2C3-2H
100MHz 168pin CL3
In Stock
$59.99
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Part Number 22.2C3-2H
133MHz 168pin CL3
In Stock
$59.99
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Part Number 21.5C3-2H
100MHz 168pin CL3
In Stock
$64.99
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Part Number 22.5C3-2
133MHz 168pin CL3
In Stock
$30.99
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Part Number 21.5C3-2
100MHz 168pin CL3
In Stock
$40.99
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Part Number 22.5C3-2H
133MHz 168pin CL3
In Stock
$49.99
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Part Number 21.5C3-2H
100MHz 168pin CL3
In Stock
$64.99
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Part Number 22.5C3
133MHz 168pin CL3
In Stock
$15.99
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Part Number 21.5C3
100MHz 168pin CL3
In Stock
$20.99
View Product
Part Number 22.5C3H
133MHz 168pin CL3
In Stock
$24.99
View Product
Part Number 21.5C3H
100MHz 168pin CL3
In Stock
$32.99
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Part Number 21.2C3-2
100MHz 168pin CL3
In Stock
$37.99
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Part Number 22.2C3-2
133MHz 168pin CL3
In Stock
$37.99
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Part Number 21.2C3-2H
100MHz 168pin CL3
In Stock
$59.99
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Part Number 22.2C3-2H
133MHz 168pin CL3
In Stock
$59.99
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Part Number 21.2C3
100MHz 168pin CL3
In Stock
$18.99
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Part Number 22.2C3
133MHz 168pin CL3
In Stock
$18.99
View Product
Part Number 21.2C3H
100MHz 168pin CL3
In Stock
$29.99
View Product
Part Number 22.2C3H
133MHz 168pin CL3
In Stock
$29.99
View Product
Part Number 22.1C3
133MHz 168pin CL3
In Stock
$7.99
View Product
Part Number 22.1C3H
133MHz 168pin CL3
In Stock
$12.99
View Product
Part Number 21.1C3
100MHz 168pin CL3
In Stock
$15.99
View Product
Part Number 21.1C3H
100MHz 168pin CL3
In Stock
$24.99
View Product
Part Number 21/64mC3
100MHz 168pin CL3
Call to Order
$23.99
View Product
Part Number 22/64mC3
133MHz 168pin CL3
Call to Order
$30.99
View Product
Part Number 21/64mC3H
100MHz 168pin CL3
Call to Order
$37.99
View Product
Part Number 22/64mC3H
133MHz 168pin CL3
Call to Order
$49.99
View Product

Upgrade References

The table below are references to other manufacturer part numbers which are specific to this device, have identical specifications to our components. This information is made available for your reference.
Part# Source References
KTA-IMAC100/64 64MB Module Kingston
KTA-IMAC100/128 128MB SDRAM PC133 133MHz DIMM Kingston 22.1C3
KTA-IMAC100/128-G 128MB SDRAM PC100 100MHz DIMM Kingston 21.1C3
KTA-IMAC100/256 256MB Module Kingston
KTA-IMAC100/256-G 256MB Module (GSA-US) Kingston
KTA-IMAC100/512 512MB SDRAM PC100 100MHz DIMM Kingston 21.5C3
KTA-IMAC100/512-G 512MB SDRAM PC100 100MHz DIMM Kingston 21.5C3