DOCUMENT:Q105159  13-OCT-1993  [W_NT]
TITLE   :Ultrastor SCSI Host Adapters and Removable Hard Drives
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
 - Microsoft Windows NT Advanced Server version 3.1
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SYMPTOMS
========
 
After adding a removable hard drive, such as Syquest drive, the system
does not boot to Windows NT. The following error message appears on a
blue screen:
 
   Inaccessible boot device.
 
CAUSE
======
 
All fixed and removable hard disks are serviced through BIOS INT 13
service routine. If a removable hard disk is connected to Ultrastor
SCSI host adapter, it will be treated as a regular fixed hard disk
through on-board BIOS. The following problems may occur:
 
 - During boot time, if a cartridge was not inserted in the removable
   hard disk, on-board BIOS will time-out with a "Device not ready"
   error message.

 - Media change in the device cannot be recognized without using a
   third-party software.
 
RESOLUTION
==========
 
To exclude services for removable hard disks from on-board BIOS INT
13, do the following:
 
 - For Ultrastor 14F, jumper JP11 pins 9-10.
 
 - For Ultrastor 24F/24Fa, set the host adapter SCSI ID to 6.
 
 - For Ultrastor 14N, jumper JP21 pins 1-2.
 
For more information, please call Ultrastor Corporation Technical
Support at (510) 623-8955.
 
The products included here are manufactured by a vendor independent of
Microsoft; we make no warranty, implied or otherwise, regarding these
products' performance or reliability. 

Additional reference words: 3.10
KBCategory:
KBSubCategory: hrdwr

=============================================================================

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Copyright Microsoft Corporation 1993.