DOCUMENT:Q163897 09-AUG-2001 [winnt] TITLE :Using GSI Model 18 Add-in IDE Controller Causes STOP 0x7B PRODUCT :Microsoft Windows NT PROD/VER:WINNT:4.0 OPER/SYS: KEYWORDS:kb3rdparty kbhw kbHardware ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server version 4.0 - Microsoft Windows NT Workstation version 4.0 ------------------------------------------------------------------------------- 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 kbhw kbHardware Technology : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400 Version : WINNT:4.0 Issue type : kbprb ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.