IRQ conflict
in [Hardware]
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From: Yousuf Khan on 27 Jan 2010 23:46 Looks like I'm having a good old fashioned IRQ conflict. Even though IRQ's are theoretically shareable these days, in practice it may not be such a hot idea. The problem first occurred after I replaced my motherboard and processor on one of my systems, a couple of weeks back. I was getting a BSOD once every couple of days. I've had 5 BSODs so far. There has been 3 different types of Stop messages: variously involved the DRIVER_IRQL_NOT_LESS_THAN_OR_EQUAL (twice), the BAD_POOL_HEADER (twice), and the UNEXPECTED_KERNEL_MODE_TRAP (once) errors. Initially, they involved TCPIP.SYS and IPNAT.SYS, both of which were network-related. So I thought it's a network card issue and I updated the Realtek Gigabit Ethernet driver, but that didn't help. Then a couple of days ago, I got another BSOD, but this time it involved the driver NV4_MINI.SYS, which is an Nvidia video card driver -- seemed completely unrelated. Then earlier today, I got another DRIVER_IRQL_NOT_LESS_THAN_OR_EQUAL error, and this time it came from both the TCPIP.SYS and the NV4_MINI.SYS drivers together! That clued me into the idea that perhaps these two are sharing the same IRQ. I looked in Device Manager, sorted it by Resource Connections, and sure enough the gigabit ethernet and video card are both sharing IRQ 18! And that's not all, there's 5 other devices sharing this same IRQ too! Seven devices on the same IRQ line! There's only one other line, IRQ 16, that has multiple devices on it too, at comparatively paltry 3 devices. Every other IRQ line that is used only has one device on it, and there are several empty unused IRQ lines all over the place. So I went into the BIOS settings, but couldn't find any IRQ setting functions available to it. The only option I found was something that either enabled or disabled Plug'n'Play OS support, but not much else. I tried to go into Windows' Device Manager to manually configure the IRQ's, but the manual setting of resources was grayed out. According to this webpage, you can't manually set anything inside an ACPI-compliant PC: "You may find you cannot manually change your IRQ settings (the Use automatic settings will be greyed out), this is usually related to the ACPI function used by Win XP. " http://www.helpwithpcs.com/upgrading/change-irq-settings.htm So now I'm stuck, is there some kind of program available to reset the ACPI tables? Some sections of the Registry that I can change? Yousuf Khan
From: RobertVA on 28 Jan 2010 01:14 On 1/27/2010 11:46 PM, Yousuf Khan wrote: > Looks like I'm having a good old fashioned IRQ conflict. Even though > IRQ's are theoretically shareable these days, in practice it may not be > such a hot idea. The problem first occurred after I replaced my > motherboard and processor on one of my systems, a couple of weeks back. > I was getting a BSOD once every couple of days. I've had 5 BSODs so far. > There has been 3 different types of Stop messages: variously involved > the DRIVER_IRQL_NOT_LESS_THAN_OR_EQUAL (twice), the BAD_POOL_HEADER > (twice), and the UNEXPECTED_KERNEL_MODE_TRAP (once) errors. > > Initially, they involved TCPIP.SYS and IPNAT.SYS, both of which were > network-related. So I thought it's a network card issue and I updated > the Realtek Gigabit Ethernet driver, but that didn't help. > > Then a couple of days ago, I got another BSOD, but this time it involved > the driver NV4_MINI.SYS, which is an Nvidia video card driver -- seemed > completely unrelated. Then earlier today, I got another > DRIVER_IRQL_NOT_LESS_THAN_OR_EQUAL error, and this time it came from > both the TCPIP.SYS and the NV4_MINI.SYS drivers together! That clued me > into the idea that perhaps these two are sharing the same IRQ. I looked > in Device Manager, sorted it by Resource Connections, and sure enough > the gigabit ethernet and video card are both sharing IRQ 18! And that's > not all, there's 5 other devices sharing this same IRQ too! Seven > devices on the same IRQ line! There's only one other line, IRQ 16, that > has multiple devices on it too, at comparatively paltry 3 devices. Every > other IRQ line that is used only has one device on it, and there are > several empty unused IRQ lines all over the place. > > So I went into the BIOS settings, but couldn't find any IRQ setting > functions available to it. The only option I found was something that > either enabled or disabled Plug'n'Play OS support, but not much else. > > I tried to go into Windows' Device Manager to manually configure the > IRQ's, but the manual setting of resources was grayed out. According to > this webpage, you can't manually set anything inside an ACPI-compliant PC: > > "You may find you cannot manually change your IRQ settings (the Use > automatic settings will be greyed out), this is usually related to the > ACPI function used by Win XP. " > http://www.helpwithpcs.com/upgrading/change-irq-settings.htm > > So now I'm stuck, is there some kind of program available to reset the > ACPI tables? Some sections of the Registry that I can change? > > Yousuf Khan Did you replace the motherboard and processor with the same make and model numbers? If either was replaced with a different component, what procedure did you use to reconfigure the OS to the new hardware configuration (backup data and clean reinstall or repair install)? Was the original (with the old hardware) installed by the computer manufacturer? Customized OEM installation, generic "grey box" OEM, Full retail OS or upgrade from an earlier version of Windows? Were the old drivers installed from the OS installation media or media that came with the hardware (graphic accelerator, Ethernet card, sound accelerator, motherboard chip set etc)? Same information about driver sources after replacing the hardware. Others with similar hardware might be able to compare their driver versions to yours if in a further post you list equipment descriptions and any version numbers from the problematic computer. You may be able to use software like the DirectX diagnostic, Windows System Information or a third party hardware reporting tool to copy that information to a text file or the Windows clipboard, allowing you to paste the relevent sections of those report information into a post.
From: Yousuf Khan on 28 Jan 2010 02:13 RobertVA wrote: > Did you replace the motherboard and processor with the same make and > model numbers? If either was replaced with a different component, what > procedure did you use to reconfigure the OS to the new hardware > configuration (backup data and clean reinstall or repair install)? Nope, both the motherboard and processor were upgraded to newer models. The processor came from the same manufacturer, but is a generation or two newer (AMD, old: Athlon 64 X2, new: Phenom II X3). The motherboard is from the same manufacturer, but different models/chipsets (Asus, old: M2NPV-VM/Nvidia Nforce 430, new: M4A785-M/ATI 785G). The method used to reconfigure was closer to a repair install. It was merely an install of the drivers for new components as they got discovered Windows. Processor information drivers were updated to the latest versions. All attached hardware have been completely matched to appropriate drivers. There are no yellow exclamation points or red X's among any of the Device Manager entries, if that's what you're getting at. > Was the original (with the old hardware) installed by the computer > manufacturer? Customized OEM installation, generic "grey box" OEM, Full > retail OS or upgrade from an earlier version of Windows? Were the old > drivers installed from the OS installation media or media that came with > the hardware (graphic accelerator, Ethernet card, sound accelerator, > motherboard chip set etc)? Same information about driver sources after > replacing the hardware. The machine is a home-built. It was completely built and upgraded by me over the years. Windows XP was originally installed on this system as an upgrade from Windows 2000, which must've been 7 or 8 years ago; it's been upgraded between that time too. The old and new drivers were installed by a combination of OS install media and hardware install media. Some drivers had sources pre-included in the OS install disk, and some came from a later hardware installation disk. This latest motherboard and processor upgrade was actually quite smooth and trouble-free, comparatively. All new hardware drivers were installed and working in the first try, without incident. > Others with similar hardware might be able to compare their driver > versions to yours if in a further post you list equipment descriptions > and any version numbers from the problematic computer. You may be able > to use software like the DirectX diagnostic, Windows System Information > or a third party hardware reporting tool to copy that information to a > text file or the Windows clipboard, allowing you to paste the relevent > sections of those report information into a post. You just needed to ask. Here's the full list of IRQ assignments on the machine: > IRQ 00 Exclusive System timer > IRQ 04 Exclusive Communications Port (COM1) > IRQ 08 Exclusive System CMOS/real time clock > IRQ 09 Shared Microsoft ACPI-Compliant System > IRQ 13 Exclusive Numeric data processor > IRQ 14 Exclusive Primary IDE Channel > IRQ 16 Shared Standard OpenHCD USB Host Controller > IRQ 16 Shared Standard OpenHCD USB Host Controller > IRQ 16 Shared Microsoft UAA Bus Driver for High Definition Audio > IRQ 17 Shared Standard Enhanced PCI to USB Host Controller > IRQ 18 Shared Realtek PCIe GBE Family Controller > IRQ 18 Shared Standard OpenHCD USB Host Controller > IRQ 18 Shared Standard OpenHCD USB Host Controller > IRQ 18 Shared Standard OpenHCD USB Host Controller > IRQ 18 Shared PCI standard PCI-to-PCI bridge > IRQ 18 Shared PCI standard PCI-to-PCI bridge > IRQ 18 Shared NVIDIA GeForce 8600 GT > IRQ 19 Shared Standard Enhanced PCI to USB Host Controller > IRQ 22 Shared Standard Dual Channel PCI IDE Controller As you can see, there are 7 devices using the same IRQ 18. Yousuf Khan
From: Jose on 28 Jan 2010 07:59 On Jan 28, 2:13 am, Yousuf Khan <bbb...(a)spammenot.yahoo.com> wrote: > RobertVA wrote: > > Did you replace the motherboard and processor with the same make and > > model numbers? If either was replaced with a different component, what > > procedure did you use to reconfigure the OS to the new hardware > > configuration (backup data and clean reinstall or repair install)? > > Nope, both the motherboard and processor were upgraded to newer models. > The processor came from the same manufacturer, but is a generation or > two newer (AMD, old: Athlon 64 X2, new: Phenom II X3). The motherboard > is from the same manufacturer, but different models/chipsets (Asus, old: > M2NPV-VM/Nvidia Nforce 430, new: M4A785-M/ATI 785G). > > The method used to reconfigure was closer to a repair install. It was > merely an install of the drivers for new components as they got > discovered Windows. Processor information drivers were updated to the > latest versions. All attached hardware have been completely matched to > appropriate drivers. There are no yellow exclamation points or red X's > among any of the Device Manager entries, if that's what you're getting at.. > > > Was the original (with the old hardware) installed by the computer > > manufacturer? Customized OEM installation, generic "grey box" OEM, Full > > retail OS or upgrade from an earlier version of Windows? Were the old > > drivers installed from the OS installation media or media that came with > > the hardware (graphic accelerator, Ethernet card, sound accelerator, > > motherboard chip set etc)? Same information about driver sources after > > replacing the hardware. > > The machine is a home-built. It was completely built and upgraded by me > over the years. Windows XP was originally installed on this system as an > upgrade from Windows 2000, which must've been 7 or 8 years ago; it's > been upgraded between that time too. The old and new drivers were > installed by a combination of OS install media and hardware install > media. Some drivers had sources pre-included in the OS install disk, and > some came from a later hardware installation disk. > > This latest motherboard and processor upgrade was actually quite smooth > and trouble-free, comparatively. All new hardware drivers were installed > and working in the first try, without incident. > > > Others with similar hardware might be able to compare their driver > > versions to yours if in a further post you list equipment descriptions > > and any version numbers from the problematic computer. You may be able > > to use software like the DirectX diagnostic, Windows System Information > > or a third party hardware reporting tool to copy that information to a > > text file or the Windows clipboard, allowing you to paste the relevent > > sections of those report information into a post. > > You just needed to ask. Here's the full list of IRQ assignments on the > machine: > > > > > > > IRQ 00 Exclusive System timer > > IRQ 04 Exclusive Communications Port (COM1) > > IRQ 08 Exclusive System CMOS/real time clock > > IRQ 09 Shared Microsoft ACPI-Compliant System > > IRQ 13 Exclusive Numeric data processor > > IRQ 14 Exclusive Primary IDE Channel > > IRQ 16 Shared Standard OpenHCD USB Host Controller > > IRQ 16 Shared Standard OpenHCD USB Host Controller > > IRQ 16 Shared Microsoft UAA Bus Driver for High Definition Audio > > IRQ 17 Shared Standard Enhanced PCI to USB Host Controller > > IRQ 18 Shared Realtek PCIe GBE Family Controller > > IRQ 18 Shared Standard OpenHCD USB Host Controller > > IRQ 18 Shared Standard OpenHCD USB Host Controller > > IRQ 18 Shared Standard OpenHCD USB Host Controller > > IRQ 18 Shared PCI standard PCI-to-PCI bridge > > IRQ 18 Shared PCI standard PCI-to-PCI bridge > > IRQ 18 Shared NVIDIA GeForce 8600 GT > > IRQ 19 Shared Standard Enhanced PCI to USB Host Controller > > IRQ 22 Shared Standard Dual Channel PCI IDE Controller > > As you can see, there are 7 devices using the same IRQ 18. > > Yousuf Khan There are also 3 sharing IRQ 16. Wouldn't that also be a problem? How did you obtain this list of IRQ information? What are ACPI tables that need to be reset? Do you show IRQ conflicts in Device Manager, Interrupt Request, Resources tab? If you could change the IRQs, what would you change them to? Please provide additional information about your system: Click Start, Run and in the box enter: msinfo32 Click OK, and when the System Summary info appears, click Edit, Select All, Copy and then paste the information back here. There will be some personal information (like System Name and User Name), and whatever appears to be private information to you, just delete it from the pasted information. This will minimize back and forth Q&A and eliminate guesswork. For IRQ information, expand the Hardware Resources, click IRQs, click Edit, Select All, Copy and then paste the information. For video driver information, expand the Components, click Display, click Edit, Select All, Copy and then paste the information. For audio information, expand the Components, click Sound Device, click Edit, Select All, Copy and then paste the information back here.
From: Bob I on 28 Jan 2010 08:42
You don't have an IRQ conflict, you have a bad driver for the hardware installed. NT uses Virtual IRQs for legacy support and the number of items listed on a particular IRQ is immaterial. Yousuf Khan wrote: > Looks like I'm having a good old fashioned IRQ conflict. Even though > IRQ's are theoretically shareable these days, in practice it may not be > such a hot idea. The problem first occurred after I replaced my > motherboard and processor on one of my systems, a couple of weeks back. > I was getting a BSOD once every couple of days. I've had 5 BSODs so far. > There has been 3 different types of Stop messages: variously involved > the DRIVER_IRQL_NOT_LESS_THAN_OR_EQUAL (twice), the BAD_POOL_HEADER > (twice), and the UNEXPECTED_KERNEL_MODE_TRAP (once) errors. > > Initially, they involved TCPIP.SYS and IPNAT.SYS, both of which were > network-related. So I thought it's a network card issue and I updated > the Realtek Gigabit Ethernet driver, but that didn't help. > > Then a couple of days ago, I got another BSOD, but this time it involved > the driver NV4_MINI.SYS, which is an Nvidia video card driver -- seemed > completely unrelated. Then earlier today, I got another > DRIVER_IRQL_NOT_LESS_THAN_OR_EQUAL error, and this time it came from > both the TCPIP.SYS and the NV4_MINI.SYS drivers together! That clued me > into the idea that perhaps these two are sharing the same IRQ. I looked > in Device Manager, sorted it by Resource Connections, and sure enough > the gigabit ethernet and video card are both sharing IRQ 18! And that's > not all, there's 5 other devices sharing this same IRQ too! Seven > devices on the same IRQ line! There's only one other line, IRQ 16, that > has multiple devices on it too, at comparatively paltry 3 devices. Every > other IRQ line that is used only has one device on it, and there are > several empty unused IRQ lines all over the place. > > So I went into the BIOS settings, but couldn't find any IRQ setting > functions available to it. The only option I found was something that > either enabled or disabled Plug'n'Play OS support, but not much else. > > I tried to go into Windows' Device Manager to manually configure the > IRQ's, but the manual setting of resources was grayed out. According to > this webpage, you can't manually set anything inside an ACPI-compliant PC: > > "You may find you cannot manually change your IRQ settings (the Use > automatic settings will be greyed out), this is usually related to the > ACPI function used by Win XP. " > http://www.helpwithpcs.com/upgrading/change-irq-settings.htm > > So now I'm stuck, is there some kind of program available to reset the > ACPI tables? Some sections of the Registry that I can change? > > Yousuf Khan |