Microsoft KB Archive/109693

= Unisys PC May Not Start with Disconnect Enabled on 6260 Chip =

Article ID: 109693

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Advanced Server 3.1
 * Microsoft Windows NT Workstation 3.1
 * Microsoft Windows NT Advanced Server 3.1

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This article was previously published under Q109693



SYMPTOMS
If you are using a Unisys PC model 4XXX2 (where the Xs represent the processor type, speed, and "2" represents the design level), and you enable the Disconnect option in CMOS, Windows NT may not start.



CAUSE
The 6260 SCSI chip that Unisys uses with these computers are based on the Adaptec AHA 1522 SCSI card. Under the Unisys CMOS, there is an option to enable Disconnect. Enabling this option prevents Windows NT from starting.



STATUS
Unisys has confirmed that there is a problem with the 4XXX2 model using the 6260 SCSI chip and have corrected the problem on newer machines based on the 6360 chip or later.

If you experience this problem, contact Unisys Customer Service. The products included here are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

Additional query words: prodnt boot

Keywords: kbhardware KB109693

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