Microsoft KB Archive/163897

= Using GSI Model 18 Add-in IDE Controller Causes STOP 0x7B =

Article ID: 163897

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT Workstation 4.0 Developer Edition

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This article was previously published under Q163897



SYMPTOMS
If a GSI model 18 IDE controller is installed in the non-PCI system, Windows NT will generate a Blue Screen with a STOP 0X0000007B (INACCESSIBLE_BOOT_DEVICE) message.



CAUSE
This problem does not occur unless the add-in controller also has some device attached, such as a fixed disk. Because the system is not PCI, ATAPI does not control the second channel, but ATAPI must look at the devices on the card, to see if any are ATAPI. After ATAPI determines that it is not to use the second channel, it goes back to the boot device and reads Cylinder 0, Head 0, Sector 1 (Partition Table / MBR). At this point, for unknown reasons, it retries the read until the retries run out (even through the data received looks legitimate). It then determines that the boot device cannot be accessed, which causes the Blue Screen STOP message. The impact of this problem is small because most systems today do not use add-in IDE controllers.



RESOLUTION
To resolve this problem, contact GS-118 support at (714) 261-9744 for an updated BIOS, version 5.02. You will need to provide a serial number for support. This problem cannot be reproduced if the device is removed from the GSI card, even if the card remains installed in the computer.



STATUS
This problem occurs when you use Microsoft Windows NT version 4.0 and a GSI model 18 IDE controller

Additional query words: prodnt

Keywords: kb3rdparty kbhardware kbprb KB163897

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