TITLE
    Power Macintosh 4400/200: Memory Expansion (5/97)
Article ID:
Created:
Modified: 		20949
2/11/97
5/29/97
TOPIC


    What type of memory is supported in the Power Macintosh 4400 series computers?

DISCUSSION


    The Power Macintosh 4400/200 computer does not have any DRAM memory soldered on the logic board. All RAM expansion is provided by DIMMs installed in any of the three 168-pin DIMM sockets. DRAM expansion slot 1 supports single-bank DIMMs (a maximum of 32 MB). DRAM expansion slots 2 and 3 support both single-bank and dual-bank DIMMs (a maximum of 64 MB per slot with dual-bank DIMMs). A total of 160 MB of DRAM is supported.

    DIMMs types used in the 4400/200 must meet all three of the following criteria to function:

    * 168-pin 3.3-volt EDO (Extended Data Out) DIMMs
    * 64-bit wide
    * Acceptable DIMM sizes include 8, 16, 32, and 64 MB.

    IMPORTANT: The Power Macintosh 4400/200 uses 3.3-volt EDO DIMMs, which are NOT compatible with the Macintosh Performa 6400 and Power Macintosh 5500 and 6500 computers. Although these other computers also may support the use of EDO DIMMs, they require 5-volt EDO DIMMs.

    Also, the Power Macintosh 4400 does NOT support the use of Fast-Page-Mode (FPM) memory.

    For additional information about EDO memory and its benefits, using the search string, "edo and memory" to locate a related article titled, "Power Macintosh Computers: Using FPM, EDO, SDRAM, & SGRAM."

Document Information
Product Area: Computers
Category: Power Macintosh
Sub Category: Power Macintosh 4400

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