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ACPI IRQ HOLDER error

Michael Schnier
Occasional Visitor

ACPI IRQ HOLDER error

When I optimize my system for peak performance, I get an error that the " ACPI
IRQ HOLDER for PCI IRQ steering" device has a problem. I am unaware of how to
fix this issue. I have restored my system to factory defaults with formatting
the hard drive and the error is still there. My roommate who also owns an HP
gets the same error as well as my parents who own a computer the same as mine.
I have the HP Pavilion 6468.


Another question I have is my system came pre-installed with quicktime 32 bit.
It does not contain a installation or deletion executable program. So how do I
uninstall it? I have searched for that specific version of quicktime, but have
been unable to find it. Many new games use quicktime 4.0 to run, but I if I
install it, it does not overwrite the 32 bit version, thus I have both trying
to run. Please help if you can.
2 REPLIES
Jamie Hughes_1
Regular Advisor

Re: ACPI IRQ HOLDER error

Hello Michael,

What OS are you running (Win 9x or NT)? Assuming that you are running Win98,
you can try to disable the PCI bus IRQ steering. You can try disabling it in
the OS or if that doesn't work, you should look for a setting in the BIOS. I
got the following info from a Microsoft Technet Article - Q182628. I've
included the link to the MS Knowledge Base and then you will need to search for
the article Q182628.

Good Luck,
Jamie Hughes
jamie_hughes@hp.com

To check and disable the IRQ steering in Win98, do the following:

When PCI bus IRQ steering is enabled, Windows dynamically assigns or "steers"
PCI bus IRQs to PCI devices. If there are IRQ conflicts between PCI devices,
you
may need to disable PCI bus IRQ steering to determine where the conflicts
occur.
To disable PCI bus IRQ steering, follow these steps:

1. Click Start, point to Settings, click Control Panel, and then double-click
System.

2. Click the Device Manager tab.

3. Double-click the System Devices branch.

4. Double-click PCI Bus, and then click the IRQ Steering tab.

5. Click the Use IRQ Steering check box to clear it, click OK, and then click
OK
again.

6. When you are prompted to restart your computer, click Yes.

NOTE: If you click No instead of Yes when you are prompted to restart your
computer, the changes do not take affect.

NOTE: You may also have to disable PCI bus IRQ steering in your computer's
basic
input/output system (BIOS). For information about how to do so, contact you
BIOS
manufacturer.

The following settings determine which routing tables Windows uses when
programming IRQ steering:

- Get IRQ table using ACPI BIOS:

When this check box is selected, the ACPI BIOS IRQ routing table is the
first
table Windows tries to use to program IRQ steering. If a PCI device is not
working properly, click this check box to clear it.

- Get IRQ table using MS Specification table:

When this check box is selected, the MS Specification routing table is the
second table Windows tries to use to program IRQ steering.

- Get IRQ table from Protected Mode PCIBIOS 2.1 call:

When this check box is selected, the Protected Mode PCIBIOS 2.1 routing
table
is the third table Windows tries to use to program IRQ steering.

- Get IRQ table from Real Mode PCIBIOS 2.1 call:

When this check box is selected, the Real Mode PCIBIOS 2.1 routing table is
the fourth table Windows tries to use to program IRQ steering.

NOTE: By default, the "Get IRQ table from Protected Mode PCIBIOS 2.1 call"
check box is not selected. You should only click this check box to place a
check mark if a PCI device is not working properly.

IRQ Holder For PCI Steering may appear under IRQ Routing Status even though PCI
bus IRQ steering is disabled. This can occur if the IRQ settings are being read
by your computer's BIOS. For information about modifying the BIOS, contact your
BIOS manufacturer.

For additional information about PCI bus IRQ steering, please see the following
article in the Microsoft Knowledge Base:

Q182604 Description of PCI Bus IRQ Steering
Margaret Kraak
Occasional Visitor

Re: ACPI IRQ HOLDER error

Micheal did you ever et this resolved. I have just redone my sons HP Pavillion 6350, windows 98 operating system.
I have the same problem regarding the ACPI IRQ.

Also like you I cannot fiqure out how the Qick time is in the Control Panel.

I'm wondering if the problem has anything to do with the crstal audio codec, assigning an IRQ to SoundBlaster, which does not exist.

Any help would be appreciated.

Margaret