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PATH Hardware Documentation
> PowerBook G3 Series 1999
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The computer has two RAM expansion slots that accommodate standard SO (small outline) DIMMs using SDRAM devices. One slot is on the bottom of the system module and is normally occupied by the factory-installed SO-DIMM. The other slot is on the top of the system module and is available for a user-installed SO-DIMM.
RAM expansion SO-DIMMs for the PowerBook G3 Series computer must use SDRAM devices. If the user installs an SO-DIMM that uses EDO devices, the failure chimes will sound when the user attempts to restart the computer and the computer will not operate.
An SO-DIMM using presently-available parts can contain either 16, 32, 64, 128, or 256 MB of memory. Because of space limitations, a 256 MB SO-DIMM will fit only in the top slot.
Total RAM capacity using the highest-density devices available is 384 MB and is limited by the space available for the SO-DIMMs. The bottom slot can accommodate a 1.5-inch SO-DIMM with up to 128 MB of SDRAM. The top slot can accommodate a 2.0-inch SO-DIMM with up to 256 MB of SDRAM.
