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Question about IRQ and videocards

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I wish to know if my configuration is correct. I have two video cards, one on AGP and the second on PCI slot.But, when I see the IRQ configuration both cards are sharing the IRQ (11).Is it correct? or each card had to have thier own IRQ?When I have tried to change the IRQ I have got a message that I can do that,Thanks in advance.Rodolfo

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Unless your experiencing problems (lockups, errors, etc.), then it's perfectly fine to have your video cards share the same IRQ. On my old rig, my GeForce 4 Ti4600 shared an IRQ device with 5 other devices, including two sounds cards, and I never had any problems.Ryan-Flightpro08 :-cool VATSIM Pilot/ControllerZLA ARTCC Senior Controller (C-3)SAN TRACON Lead [link:www.taxiwaysigns.com|Taxiwaysigns.com] Scenery Designer-----------------------------My "Home Made" System Specs:Intel Pentium 4 2.2GHz ProcessorTurbo Gamer ATX Mid-Tower with 420W Power SupplyEPoX 4G4A Motherboard with Intel 845G ChipsetVisiontek XTASY GeForce4 128MB Ti4600 (Det 30.30 Drivers)512MB PC2100 DDR RAM40GB Matrox 7200RPM Hard DriveWindows XP Home Edition SP1*No CPU or GPU Overclocking*3dMark2001SE Score: 11298-----------------------------Click [link:ftp.avsim.com/library/esearch.php?DLID=&Name=&FileName=&Author=Ryan+Fretwell&CatID=Root]Here to Download my New American Eagle POSKY CRJ-200!

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Yes, but did two graphics cards share the same IRQ? As intensive as the graphics cards are, having it share an IRQ with another graphics card is not favorable.If you have Advanced Configuration and Power Interface (ACPI) invoked in your PC setup, then you will not be able to assign separate IRQs. You might be able to have the system change the IRQs by moving the PCI card futher away from the AGP card.

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No, when I had a muilti-monitor setup, I used by GeForce 4 Ti4600 for both monitors. But again, if he's not having any problems, then there's no reason why he should move one of his video card's IRQ, as it's very difficult to do, and will just cause a lot of headaches.b]Ryan-Flightpro08 :-cool VATSIM Pilot/ControllerZLA ARTCC Senior Controller (C-3)SAN TRACON Lead [link:www.taxiwaysigns.com|Taxiwaysigns.com] Scenery Designerhttp://members.cox.net/santracon/images/san_logo.jpg-----------------------------My "Home Made" System Specs:Intel Pentium 4 2.2GHz ProcessorTurbo Gamer ATX Mid-Tower with 420W Power SupplyEPoX 4G4A Motherboard with Intel 845G ChipsetVisiontek XTASY GeForce4 128MB Ti4600 (Det 41.03 Drivers)512MB PC2100 DDR RAM40GB Matrox 7200RPM Hard DriveWindows XP Home Edition SP1*No CPU or GPU Overclocking*3dMark2001SE Score: 11298-----------------------------Click [link:ftp.avsim.com/library/esearch.php?DLID=&Name=&FileName=&Author=Ryan+Fretwell&CatID=Root]Here to Download my New American Eagle POSKY CRJ-200!

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Rodolfo,The following is quoted from the Help and Support Center of WinXP,"Advanced Configuration and Power Interface (ACPI) is an open industry specification that defines a flexible and extensible hardware interface for the system board. Software designers use this specification to integrate power management features throughout a computer system, including hardware, the operating system, and application software. This integration enables Windows to determine which applications are active and handle all of the power management resources for computer subsystems and peripherals.ACPI enables the operating system to direct power management on a wide range of mobile, desktop and server computers, and peripherals.ACPI is the foundation for the OnNow industry initiative that allows system manufacturers to deliver computers that start at the touch of a key on a keyboard.ACPI design is essential to take full advantage of power management and Plug and Play in Windows. If you are not sure whether your computer is ACPI-compliant, check your manufacturer's documentation. To change power settings that take advantage of ACPI, use Power Options in Control Panel.During Windows Setup, ACPI is installed only if all components present during Setup support power management. Some components, especially legacy components, do not support power management and can cause erratic behavior with Advanced Power Management (APM), or may prevent ACPI from being installed. Examples of such components are Industry Standard Architecture (ISA) components and an out-of-date BIOS"The only option would be to completely reinstall Windows with a special setting to eliminate loading of ACPI. That is a drastic step. As the other poster indicated, "If it works, don't mess with it!". If you are having lockup, poor performance, etc, then try moving the second card away from the AGP slot.

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