Apple IIGS Monitor: How to Set to 60 Hertz
How do I change an Apple IIGS monitor from 50Hz to 60Hz?
Here's how to reset your Apple IIGS to 60 hertz:
1) Turn on the Apple IIGS while holding down the option key.
2) Press 2 for "2=Set system standards and 60 hertz."
Published Date: Feb 18, 2012
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