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Intermittent System Hangs with OPTI-495SLC Chipset

Article ID:138741
Last Review:November 15, 2006
Revision:1.3
This article was previously published under Q138741

SYMPTOMS

When you are running any of the listed Windows versions, your computer may occasionally stop responding (hang). This problem is known to occur on computers with the following chipsets:
   OPTI-495SLC
				

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CAUSE

The Turbo Switch feature of your system ROM BIOS is enabled. This feature causes the computer to monitor keyboard input for a particular series of keystrokes. When this series of keystrokes is detected, the computer is placed in Turbo mode.

Windows also queries the keyboard periodically. When the computer and Windows attempt to query the keyboard at the same time, your computer may hang.

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RESOLUTION

Disable the Turbo Switch feature of your system ROM BIOS. For information about how to do so, contact your computer manufacturer.

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MORE INFORMATION

The third-party products discussed here are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

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APPLIES TO
Microsoft Windows 95
Microsoft Windows for Workgroups 3.1
Microsoft Windows for Workgroups 3.11
Microsoft Windows 3.0 Standard Edition
Microsoft Windows 3.1 Standard Edition
Microsoft Windows 3.11 Standard Edition

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Keywords: 
KB138741

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