AST 386 and Bus Mouse Ports (71740)
The information in this article applies to:
- Microsoft Windows 3.0
- Microsoft Windows 3.0a
This article was previously published under Q71740 SUMMARY
AST Research, Inc. has updated Programmable Logic Array (PAL) chips
available that correct bus-card timing problems on AST 386 systems.
The updated PAL chips solve the problem of jumpy (or jerky) mouse
movement in Microsoft Windows version 3.0 when you use a bus-style
mouse.
MORE INFORMATION
AST Research, Inc., 386 systems with motherboards numbered 202273 and
202356 may need a PAL chip update to correct bus-card timing problems.
The PAL revision that needs replacement is 107101-557B. This number
appears on the top of the chip. It should be replaced with
107101-557C.
On motherboards numbered 202273, the chip location is socket U46. On
motherboards numbered 202356, the chip location is socket U74.
For more information regarding replacement of this chip, contact AST
Research technical support.
The products included here are manufactured by a vendor independent of
Microsoft; we make no warranty, implied or otherwise, regarding these
product's performance or reliability.
| Modification Type: | Minor | Last Reviewed: | 7/7/2005 |
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| Keywords: | KB71740 |
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