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- DOCUMENT:Q106554 16-NOV-1993 [W_NT]
- TITLE :Err Msg: Inaccessible Boot Device Using the BusLogic BT-542B
- PRODUCT :Windows NT
- PROD/VER:3.10
- OPER/SYS:WINDOWS
- KEYWORDS:
-
- ----------------------------------------------------------------------
- The information in this article applies to:
-
- - Microsoft Windows NT operating system version 3.1
- - Microsoft Windows NT Advanced Server version 3.1
- ----------------------------------------------------------------------
-
- SYMPTOMS
- ========
-
- When you configure Windows NT to use the BusLogic BT-542B SCSI host
- adapter, you may receive the following error message after you restart
- the system:
-
- STOP: 0x0000007B (parameter, parameter, parameter, parameter)
- INACCESSIBLE_BOOT_DEVICE
-
- CAUSE
- =====
-
- This problem may occur because the BusLogic SCSI adapter is configured
- incorrectly. The BT-542B can be configured to use both an AT IRQ
- setting and a Host IRQ setting. These must match for Windows NT to
- correctly access any devices attached to the adapter.
-
- NOTE: There may be other causes for the above error message.
-
- RESOLUTION
- ==========
-
- To eliminate the error message and use Windows NT, set the AT IRQ and
- Host IRQ to the same IRQ.
-
- MORE INFORMATION
- ================
-
- The following tables are configuration settings for the BusLogic
- BT-542B SCSI host adapter:
-
- SWITCH BAY 1
- ------------
-
- SCSI ID SW1 SW2 SW3
- 0 OFF OFF OFF
- 1 ON OFF OFF
- 2 OFF ON OFF
- 3 ON ON OFF
- 4 OFF OFF ON
- 5 ON OFF ON
- 6 OFF ON ON
- 7 ON ON ON
-
- SW4
- SCSI PARITY ENABLE/DISABLE
-
- SW5
- DISK > 1GB and not SCO UNIX ENABLE/DISABLE
-
- SW6
- SCSI SYNCHRONIZATION NEGOTIATION ENABLE/DISABLE
-
- DMA CHANNEL SW7 SW8
- DISABLE OFF OFF
- 5 ON ON
- 6 OFF ON
- 7 ON OFF
-
- SWITCH BAY 2
- ------------
-
- I/O ADDRESS SW1 SW2 SW3
- Reserved OFF OFF OFF
- 134H-137H ON OFF OFF
- 234H-237H OFF ON OFF
- 334H-337H ON ON OFF
- Reserved OFF OFF ON
- 130H-133H ON OFF ON
- 230H-233H OFF ON ON
- 330H-333H ON ON ON
-
-
- BIOS BASE ADDRESS SW4 SW5
- 0C8000H OFF OFF
- Disable ON OFF
- 0D8000H OFF ON
- 0DC000H ON ON
-
-
- AT IRQ SW6 SW7 SW8
- Reserved OFF OFF OFF
- Reserved ON OFF OFF
- 15 OFF ON OFF
- 14 ON ON OFF
- 12 OFF OFF ON
- 9 ON OFF ON
- 10 OFF ON ON
- 11 ON ON ON
-
- JUMPER SETTINGS
-
- HOST IRQ W3 W4 W5 W6 W7 W8
- 9 OFF OFF OFF OFF OFF ON
- 10 OFF OFF OFF OFF ON OFF
- 11 OFF OFF OFF ON OFF OFF
- 12 OFF OFF ON OFF OFF OFF
- 13 OFF ON OFF OFF OFF OFF
- 15 ON OFF OFF OFF OFF OFF
-
- HOST BUS
- TRANSFER RATE W11 W13
- 5.0 MB/SEC. OFF OFF
- 5.7 MB/SEC. OFF ON
- 6.7 MB/SEC. ON OFF
- 8.0 MB/SEC. ON ON
-
- W17
- HOST I/O CNANNEL READY ENABLE/DISABLE
-
- FLOPPY I/O
- ADDRESS W14
- PRIMARY (3FX) OFF
- SECONDARY (37X) ON
-
- FLOPPY
- CONTROLLER W15 W16
- DISABLE OFF OFF
- ENABLE ON ON
-
- Additional reference words: 3.10
- KBCategory:
- KBSubcategory: stp hrdwr
-
- =============================================================================
-
- 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
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- 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 1993.