Err Msg: System in Protected Mode. System Halted (126749)
The information in this article applies to:
- Microsoft Windows 3.1
- Microsoft Windows 3.11
- Microsoft Windows for Workgroups 3.1
- Microsoft Windows for Workgroups 3.11
This article was previously published under Q126749 SYMPTOMS
When you start Microsoft Windows or Windows for Workgroups, you receive the
following error message:
System in protected mode. System halted
CAUSE
A required entry for the Mylex Disk Array controller card (DAC960) may be
missing from the CONFIG.SYS file. The DAC960 requires the DACDRVR.SYS
driver file to be loaded in the CONFIG.SYS file.
RESOLUTION
Specify the DACDRVR.SYS driver file in the CONFIG.SYS file, or contact
Mylex to receive an updated DACDRVR.SYS driver file.
MORE INFORMATION
The BIOS on the DAC960 can be used only in real-mode operating systems and
is incompatible with some memory managers. To use the DAC960 with Windows
or Windows for Workgroups or with a memory manager, the DACDRVR.SYS driver
file must be loaded in the CONFIG.SYS file. According to Mylex, the
DACDRVR.SYS driver file should be the first device loaded in the CONFIG.SYS
file.
For additional information, please contact Mylex Technical Support at
(800) 776-9539.
The Mylex products discussed here are manufactured by a vendor independent
of Microsoft. We make no warranty, implied or otherwise, regarding these
products' performance or reliability.
| Modification Type: | Major | Last Reviewed: | 12/5/2003 |
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| Keywords: | KB126749 |
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