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Computer Hangs When Booting After Installing FAT32 File System

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Article ID:156329
Last Review:January 19, 2007
Revision:2.1
This article was previously published under Q156329
If this article does not describe your hardware-related issue, please see the following Microsoft Web site to view more articles about hardware:
http://support.microsoft.com/default.aspx/w98?sid=460 (http://support.microsoft.com/?scid=http%3a%2f%2fsupport.microsoft.com%2fdefault.aspx%2fw98%3fsid%3d460)

SYMPTOMS

After you install the FAT32 file system on a hard disk connected to an Adaptec 2940 or 3940 SCSI controller with a ROM BIOS version prior to 1.23, the computer may stop responding (hang) when you start Windows.

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CAUSE

The SCSI ROM BIOS does not fully implement interrupt 13 extensions, which causes Io.sys to hang when booting.

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RESOLUTION

To resolve this problem, use one of the following options:
•Upgrade the SCSI ROM BIOS to version 1.23 or later. Contact Adaptec for more information about upgrading the ROM BIOS.
•Repartition and format the drive without enabling large disk support.

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MORE INFORMATION

This problem occurs only if the FAT32 file system is installed on the boot drive.

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APPLIES TO
•Microsoft Windows 95
•Microsoft Windows 98 Standard Edition

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Keywords: 
kbenv kbsetup kbdiskmemory KB156329

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