Installing RAM
Power Mac G5 (Late 2004) computers have four dual inline memory module (DIMM) slots. Each slot accepts 400 MHz double data rate (DDR) synchronous dynamic random-access memory (SDRAM) devices.
The computers ship with a minimum of 256 MB of RAM, provided by a pair of 128 MB DIMMs installed in the two DIMM slots marked “1.” You can add DIMMs, provided they are installed as a pair of equal size, in the two DIMM slots marked “2.” A diagram on the logic board near the DIMM slots illustrates how the pairs must be installed.
You must install DIMMs in equal-sized pairs, and they must fit these specifications:
400 MHz, PC3200 DIMMs
+2.5 V ...
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