DOCUMENT:Q99645  04-JUN-1993  [W_NT]
TITLE   :INF: System Hangs with Micronics Motherboard, Ultrastor U34F
PRODUCT :Windows NT
PROD/VER:3.10
OPER/SYS:WINDOWS
KEYWORDS:

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The information in this article applies to:
 
 - Microsoft Windows NT operating system version 3.1
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SYMPTOMS
--------

Your system may stop responding (that is, it will hang) when you run
Windows NT under the following configuration:
 
 - Ultrastor U34F local bus controller
 - Micronics 486 VESA local bus motherboard
 
Note: This problem does not occur on Micronics MX30 motherboards.
 
CAUSE
-----

This problem is caused by a timing conflict between Windows NT, the
Ultrastor controller, and the Micronics motherboard.
 
Note: The problem does not occur with ISA bus controllers from
Ultrastor.
 
RESOLUTION
----------

There are two ways to work around this problem. You can disable the
external cache on your motherboard, or you can return your motherboard
to Micronics for repair. Micronics is aware of this problem and has a
fix available. The reference number for the Micronics fix is VLBA03.
Micronics can be reached at (510) 651-2300.
 
Additional reference words: 3.10 phoneref

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Copyright Microsoft Corporation 1993.