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Windows 2000 IRQ sharing

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by tchieng

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I have a Gateway P3-850 desktop. I am running Windows 2000 Pro, SP2. When I go to the Device Manager, all of my peripheral cards like the sound card, network card, etc... are all sharing the same IRQ. In this case IRQ 9. I want to change this manually in the Resources tab, but the option to set it manually is greyed out. I have gone to the BIOS and disable Plug'n Play support. I have removed the PCI bus device from the Systems branch and allow it to re-install the devices over again. I still can't change the IRQ manually. Anyone have an idea on how I can do this?

Thanks.

6 replies

by ann777

You must be logged on as an administrator or a member of the Administrators group in order to complete this procedure. If your computer is connected to a network, network policy settings may also prevent you from completing this procedure.

To open Device Manager, click Start, point to Settings, and then click Control Panel. Double-click System, click the Hardware tab, Device Manager, View, Resources by type, IRQ, right-click on the item, Properties, and Change Settings.

It shouldn't be grayed out if you are logged on with the proper authorization.

by tchieng

I do have administrative privledges. It still doesn't let me change anything.

Thanks for your input, however.

by tchieng

I do have administrative privledges. It still doesn't let me change anything.

Thanks for your input, however.

by talli

Hi!
While the previous answer is absolutely correct in it's spirit, meaning that u certainly have to have sufficient permissions to perform certain system configuration changes, it is irrelevant in this particular case. The sharing of IRQ9 that u rseeing in your Win2k is absolutely NORMAL and it is a by-design behaviour. The ability to change this setting is unavailable, and it's purpose is to let the PCI bus use IRQ9 for IRQ steering-to allow u to add more and more devices without the risk of creating IRQ conflicts.This is especially true (but NOT limited to) Win2k PCs with ACPI motherboards and the ACPI support enabled. For more detailed information go to MS KB and search it for the article number Q252420.
HTH
Talli

by tchieng

Although you didn't tell me how I can change it, you've explained to me what I needed to hear.

Thanks.

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