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1993-11-22
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154 lines
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
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 1993.