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Error message is logged in the System log every time that you start Windows Vista: ACPI BIOS does not contain an IRQ for the device in PCI slot number

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Microsoft Knowledge Base Article

This article contents is Microsoft Copyrighted material.
©2005-©2007 Microsoft Corporation. All rights reserved. Terms of Use | Trademarks

Article ID: 930062 - Last Review: March 15, 2007 - Revision: 1.4

Error message is logged in the System log every time that you start Windows Vista: "ACPI BIOS does not contain an IRQ for the device in PCI slot <number>"

SYMPTOMS

An error message that resembles the following may be logged in the System log every time that you start a Windows Vista-based computer:
Event Type: Error
Event Source: ACPI
Event Category: None
Event ID: 6
Date: Date
Time: Time
User: N/A
Computer: Computer_Name
Description:
IRQARB: ACPI BIOS does not contain an IRQ for the device in PCI slot number, function number. Please contact your system vendor for technical assistance.

CAUSE

This error message may occur on a computer that uses a Peripheral Component Interconnect (PCI) bridge that supports message-signaled interrupts but does not support line-based interrupts.

RESOLUTION

This error message may safely be ignored.

Note Do not ignore this error message if the following conditions are true:
  • A yellow explanation mark (!) appears next to the device in Device Manager.
  • You receive the following error message in the Properties dialog box for the device in Device Manager:
    This device cannot find enough free resources that it can use. (Code 12)
In this scenario, a different issue may be causing the symptoms. Take additional steps to troubleshoot this issue.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

APPLIES TO
  • Windows Vista Ultimate
  • Windows Vista Starter
  • Windows Vista Home Premium
  • Windows Vista Home Basic
  • Windows Vista Enterprise
  • Windows Vista Business 64-bit edition
  • Windows Vista Business
  • Windows Vista Ultimate 64-bit edition
  • Windows Vista Home Premium 64-bit edition
  • Windows Vista Home Basic 64-bit edition
  • Windows Vista Enterprise 64-bit edition
Keywords: 
kbqfe kbnofix kberrmsg kbprb kbexpertisebeginner KB930062
       

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