Article ID: 314908 - Last Review: November 1, 2006 - Revision: 1.1

Adding a Second Mylex AcceleRAID SCSI Controller Causes an Error Message

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This article was previously published under Q314908
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SYMPTOMS

If you add a second Mylex AcceleRAID controller to a Windows XP-based computer, you receive the following error message on a blue screen after the Found New Hardware Wizard starts:
STOP 0x000000D1 (0xf8a5802c, 0x00000006, 0x00000000, 0xf847f8a4)
DRIVER_IRQL_NOT_LESS_OR_EQUAL
When you receive this error message, the computer stops responding (hangs).
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CAUSE

The original Dac2w2k.sys driver that is included with Windows XP does not work if multiple controllers are installed. The controllers that are affected by this issue include:
  • Mylex AcceleRAID 160
  • Mylex AcceleRAID 170
  • Mylex AcceleRAID 352
  • Mylex eXtremeRAID 2000
  • Mylex eXtremeRAID 3000
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STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
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MORE INFORMATION

Windows XP does not currently support using two of the controllers that are listed in this article in the same computer.
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APPLIES TO
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional
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Keywords: 
kberrmsg kbprb KB314908
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