TITLE
    Macintosh Quadra 900: Support Issues
Article ID:
Created:
Modified: 		8989
10/18/91
8/6/92
TOPIC



    This article discusses some of the support issues for the Quadra 900.

DISCUSSION


    Sound
    -----
    The existing sound input is 8-bit linear PCM with analog limiting to
    enhance the power of the signal being digitized. The sample rate may be
    set for 22 kHz or 11 kHz. Therefore, the results will not be
    significantly better than a low cost cassette recorder without noise
    reduction. This level of performance is adequate for voice annotation,
    but will not produce the best results with music.

    Long Memory Checks
    ------------------
    When you install large amounts of DRAM, the memory check at startup is
    lengthy and you may think the machine isn't functioning. There is no
    message saying that the machine is running memory checks.

    Processor Cooling
    -----------------
    The Quadra 900 is designed with special cooling considerations for the
    68040. For the processor to cool properly, the case must be closed
    whenever the Quadra 900 is running.



Document Information
Product Area: Computers
Category: Macintosh Quadra & Centris
Sub Category: Quadra 900

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