TITLE
    System 7.5: 8■24GC Card Compatibility (12/95)
Article ID:
Created:
Modified: 		16469
10/10/94
12/8/95
TOPIC



    I have a Macintosh IIci, 20MB of RAM, and an 8*24 GC card.

    I have upgraded from System Software 7.1 to 7.5. The computer has been running fine, but since upgrading, I get a bus error when starting up. If I use the Extensions Manager to turn off everything but the 8*24 GC software, I still get a bus error.

DISCUSSION


    The 8*24 GC video card's acceleration software is incompatible with System Software 7.5, when 32-bit addressing is turned on.

    There are a couple of ways to use the 8*24 GC card with System 7.5 installed on your Macintosh computer. The first is to turn off 32-bit addressing. This may not be an ideal solution if the Macintosh has more than 8 MB of RAM installed.

    The second choice is to remove the 8*24 GC control panel file. The video card and the Macintosh are functional after removing this control panel. However, you cannot use the accelerated graphics feature when the control panel is removed.


    Article Change History:
    08 Dec 1995 - Made minor grammatical corrections.
    16 May 1995 - Reclassified.

    Support Information Services

Document Information
Product Area: Mac OS System Software
Category: System 7.5.x
Sub Category: Troubleshooting
Keywords: sys75

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