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IRQ CONFLITS?

By milanaryal ·
WHAT IS THE EASY WAY TO TROBLE SHOOT IRQ CONFLITS ? I AM USING WINDOW 2000 PROFESSIONAL. TWO DEVICES HAS SAME IRQ. I WANT TO CHANGE IRQ OF ONE OF THEM? TELL ME THE SIMPLE WAY TO CHANGE.

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IRQ CONFLITS?

by Ann777 In reply to IRQ CONFLITS?

IRQ's can be controlled at the BIOS level or at the software level. It would depend on your bios manufacturer as well as the version as to how to modify/adjust hardware settings on your computer.

Read through this link for a thourough understanding of interrupt requests:

http://www.pcnineoneone.com/howto/irq1.html

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IRQ CONFLITS?

by milanaryal In reply to IRQ CONFLITS?

The question was auto-closed by TechRepublic

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IRQ CONFLITS?

by Craig Shepherd In reply to IRQ CONFLITS?

To change IRQ's right click on My Computer and click Manage.
Select Device Manager and the select the properties for the device you want to change the IRQ for.

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IRQ CONFLITS?

by milanaryal In reply to IRQ CONFLITS?

The question was auto-closed by TechRepublic

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IRQ CONFLITS?

by danpiers In reply to IRQ CONFLITS?

The simplest thing to do is to verify that the BIOS Setup is set to PnP OS, then shut down the system. Open the case and move one of the confliting devices to an different PCI connector. Re-start the system, go to BIOS Setup one more time and re-enable the configuration bit. Save the setup and W2K should automatically re-assign an interrupt. Good luck.

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IRQ CONFLITS?

by milanaryal In reply to IRQ CONFLITS?

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IRQ CONFLITS?

by Diamond Dan In reply to IRQ CONFLITS?

hi milanaryal,

first, are any of the devices involved ISA cards? if so, then the IRQ is set by jumpers on the card itself and plug and play is not supported (some ISA cards do support PnP, but this is rare).

Next, is it really a conflict or a sharing. In other words is the system experiencing problems due to device problems, or are you just being proactive and seeing 2 devices using the same IRQ in device manager?

Reason: Windows 9x and 2K use IRQ steering to control IRQ sharing. The hard and fast rules of no two devices having the same IRQ do not apply. In IRQ steering the OS 'grabs' one IRQ and controls the placement of other devices on that IRQ to enable you to have more devices on your system than you have IRQ's available. Windows systems will typically use IRQ 9 or 11 for steering and seeing more than one device on IRQ 9 or 11 is normal. If your system is not experiencing any problems, then the sharing is fine.

If you are having problems, then uninstall one of the conflicting devices and remove the board from your pc. Reboot without the board and see if the problem goes away. Then reboot with the board reinstalled. Windows should dynamically assign a non-conflicting (but possibly shared) IRQ to that device to allow your system to run.

Side note (IRQ 2 and 9 are the same. If you have a device on 2 and another device on 9 you will have problems. Make sure that this is not the case)

Let me know how it goes or if you need more info.

Cheers,
dan

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IRQ CONFLITS?

by milanaryal In reply to IRQ CONFLITS?

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IRQ CONFLITS?

by milanaryal In reply to IRQ CONFLITS?

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