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Text File | 1994-02-10 | 1.2 KB | 30 lines | [TEXT/GEOL] |
- Macintosh Display Card 8•24 GC: Troubleshooting Screen Flicker
-
- Article Created: 13 August 1991
- Article Last Reviewed:
- Article Last Updated:
-
- TOPIC -----------------------------------------------------------
-
- My Macintosh IIfx with a Macintosh Display Card 8•24 GC is having
- intermittent screen flicker. I've swapped out the Macintosh Display Card
- 8•24 GC, the DRAM in the Display Card, the monitor, and the logic board.
-
- DISCUSSION -------------------------------------------------------
-
- The flicker may be caused by the Macintosh Display Card 8•24 GC CDEV. Turn
- off the CDEV and restart the computer. If the flickering goes away, then
- the problem is related to software corruption or hardware/software
- incompatibility. This incompatibility can range to other hardware cards
- installed, especially other video cards made by third-party vendors, to
- incompatible software packages or other third-party INITs.
-
- With the Macintosh Display Card 8•24 GC CDEV turned off, the card acts just
- like a Macintosh Display Card 8•24. If the flickering still occurs, you
- may be encountering an environment issue related to EMF (electromagnetic
- interference).
-
-
- Copyright 1991, Apple Computer, Inc.
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-