IRQ No

intel
March 17, 2008 at 06:15:30
Specs: XP Sp2, 256
Daer all,

I have a problem with my pc,

may you tell me what is the IRQ number, and is it hurmfull to my pc if some devices have the same IRQ number?

how can i change it?

and when i open the system information i see the IRQ numbers, and also in the /conflict/ i see some devices that appears in pairs that they have same IRQ No.

waiting for your help and thanks,

hope i explained it well,

bye.

me encanta la vida, pero es muy mala


See More: IRQ No

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#1
March 17, 2008 at 06:34:09
Some info. about that ---
http://support.microsoft.com/kb/314...
A general description of IRQ sharing in Windows XP

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#2
March 17, 2008 at 07:30:32
The short answer is no, it doen't matter. This is perfectly normal with Windows XP.

Stuart


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#3
March 17, 2008 at 10:32:09
IRQ sharing is allowed on the PCI buss.

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Related Solutions

#4
March 17, 2008 at 12:08:14
System Information lists IRQS and I/O addresses that are shared under Conflicts/Sharing, but usually there are actually no Conflicts, so that's a misleading heading label.
If there ARE conflicts, you will probably see RED lettering there before an entry, and/or in Components - Problem Devices there may be an entry (normally there is nothing there), or, often, the conflict doesn't show up anywhere in Windows at all - but one or both devices that have a Resource conflict may not show up in Device Manager.

If you aren't having any problems with any device that might be Resource related, you don't need to be concerned.

If you are having a problem with some device not working....

- tell us what your problem is
- see response 2 in this for info about some things that can, and that should NOT, share IRQs:

http://computing.net/hardware/wwwbo...


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#5
March 18, 2008 at 11:09:19
well thank you all for your responses

i think it's ok, but here is what it shows when i check the conflict/sharing:

I/O Port 0x00000000-0x00000CF7 PCI bus
I/O Port 0x00000000-0x00000CF7 Direct memory access controller

I/O Port 0x000003C0-0x000003DF Intel(R) 82845 Processor to AGP Controller - 1A31
I/O Port 0x000003C0-0x000003DF NVIDIA GeForce2 MX/MX 400 (Microsoft Corporation)

Memory Address 0xEC000000-0xEDFFFFFF Intel(R) 82845 Processor to AGP Controller - 1A31
Memory Address 0xEC000000-0xEDFFFFFF NVIDIA GeForce2 MX/MX 400 (Microsoft Corporation)

IRQ 17 Realtek RTL8139 Family PCI Fast Ethernet NIC
IRQ 17 Intel(r) 82801BA/BAM AC'97 Audio Controller

Memory Address 0xE0000000-0xE7FFFFFF Intel(R) 82845 Processor to AGP Controller - 1A31
Memory Address 0xE0000000-0xE7FFFFFF NVIDIA GeForce2 MX/MX 400 (Microsoft Corporation)

IRQ 19 Creative Modem Blaster V.90 PCI DI5655
IRQ 19 Intel(R) 82801BA/BAM USB Universal Host Controller - 2442

Memory Address 0xA0000-0xBFFFF PCI bus
Memory Address 0xA0000-0xBFFFF Intel(R) 82845 Processor to AGP Controller - 1A31
Memory Address 0xA0000-0xBFFFF NVIDIA GeForce2 MX/MX 400 (Microsoft Corporation)

I/O Port 0x000003B0-0x000003BB Intel(R) 82845 Processor to AGP Controller - 1A31
I/O Port 0x000003B0-0x000003BB NVIDIA GeForce2 MX/MX 400 (Microsoft Corporation)


is there anything wrong with that?

and thank you,

yours,
Haya

me encanta la vida, pero es muy mala


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#6
March 18, 2008 at 13:58:14
You haven't told us whether you are having a problem!
If you ARE having a problem, describe it in as much detail as you can.
It may have nothing to do with what you see under Conflicts/Sharing!

I'm assuming you have a desktop or tower computer, because I've never heard of a Creative dial-up modem being built into a laptop mboard.

The I/O address and memory address info is all okay.

"IRQ 17 Realtek RTL8139 Family PCI Fast Ethernet NIC
IRQ 17 Intel(r) 82801BA/BAM AC'97 Audio Controller"

If the Realtek networking chipset is built into the mboard, that's okay.

"IRQ 19 Creative Modem Blaster V.90 PCI DI5655
IRQ 19 Intel(R) 82801BA/BAM USB Universal Host Controller - 2442"

The USB controller should not share it's IRQ with anything else.

You may have no problems with simpler USB devices such as mice or keyboards, but you are more likely to have problems with more sophisticated devices such as scanners, printers, multifunction devices, and possibly connections to a camera, flash drives, flash card readers, etc.

If you are having no problems, you have the option to DO NOTHING about this situation.

If you are having problems with a USB connected device, or if you want prevent possible problems with USB devices in future, or if you are having a problem with the dial-up modem working properly and you're sure the proper drivers for it have been installed (if running Diagnostics in Control Panel - Modems produces responses it's working fine).........
- remove the AC power source to your case - unplug the cord, or switch off the power bar it connects to.
- open up the case - the side you open is on the left side of the front on a tower case.
- if you are not using the Creative dial-up modem card, you have the option of removing it and not using it, and closing up the case - problem fixed.
- if you are using the dial-up modem, or if you want to keep it installed in case you might want to use it in future, remove the Creative dial-up modem card, and install it in a different PCI slot. Don't use the PCI slot on the end closest to the center of the mboard.
See response 2 in this for more info:
http://computing.net/hardware/wwwbo...
Restore power to the case, boot the computer - Windows may prompt you it has found the dial-up modem (or a Simple PCI communications device or similar) and want to know if you want to search for drivers automatically - answer yes if the drivers for the modem were installed before, and Windows will find the right drivers automatically.
Then go look in System Information again and see if the USB controller is no longer sharing it's IRQ with another device, and whether the dial-up modem is no longer sharing an IRQ with another device.
If both are not, close up the case, the problem has been solved.
If the problem has not been solved, try the card in another PCI slot, and/or try freeing up IRQs you aren't using, etc.
See response 2 in this for more info:
http://computing.net/hardware/wwwbo...


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