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iMac (17-inch Mid 2006/Late 2006 CD) Troubleshooting — General Info 123
DDR Memory
The iMac computer has two SDRAM slots in the bottom of the computer. The iMac ships from the
factory with at least 512 MB of DDR2 SDRAM, installed as a 256 MB DIMM in the top slot and a
256 MB DIMM in the bottom slot. (The computer may come with more RAM, depending on how
the computer was ordered from Apple.)
Although you can install a single SO-DIMM, it is recommended that memory be installed in
matched pairs for improved graphics performance.
The maximum amount of RAM you can install in the iMac is 2 GB total (a 1 GB SO-DIMM in each
of the two slots). You can use small-outline dual inline memory modules (SO-DIMMS) of 512 MB or
1 GB that meet all of these criteria:
PC2-5300
unbuered
nonparity
200-pin
667 MHz DDR2 SDRAM
Note: DIMMs with any of the following features are NOT supported in this iMac:
registers or buers
PLLs
ECC
parity
EDO RAM
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