FallowEarth Posted March 15, 2006 CID Share Posted March 15, 2006 Hey all, here's the scoop: On my laptop, I have found that I always have the same two devices sharing an IRQ: PCI to USB Open Host Controller, and my vidcard (must be PCI....laptop is a few years old). The IRQ# changes after a reboot, but always puts these two devices together. My PC has IRQ's remaining unused. Under the resources tab of either devices properties, it will not allow me to configure the IRQ. http://support.microsoft.com/kb/314068/EN-US/ This article states that you cannot manually specify devices to IRQs while ACPI is enabled (it will override IRQ configuration in the BIOS). It states that in order to manually assign IRQs, one must reinstall Windows to use to use a Standard PC HAL rather than ACPI. My question is: does anyone know of a way around this? I do not wish to disable ACPI, but I am not happy with devices sharing IRQs. I would like to take this laptop apart only as a last resort (believe me, this thing is a pain....one million microscopic screws...besides, i don't seem to remember any free PCI slots from the last time i did this). Quote Link to comment Share on other sites More sharing options...
project51 Posted March 15, 2006 CID Share Posted March 15, 2006 Yeah... I have this one too. There's too many sharing in my IRQ... and some IRQs are not even being used. I tried manually setting these IRQs but I didn't see any noticable performance... so I just let XP manage since them. Quote Link to comment Share on other sites More sharing options...
peepnklown Posted March 15, 2006 CID Share Posted March 15, 2006 Are you having IRQ conflicts? Should I assume you are used to the way Windows 98 dealt with IRQs? Anyway, In Device Manager, expand "Computer" and right click the expanded entry. Select Update Driver, then choose "Install from a list or Specific Location (Advanced)", click next. Select "Don't Search, I will choose the driver to install.", click Next. If Standard PC is shown in the list, choose it, otherwise un-tick Show compatible hardware, then select Standard PC from the list. Click Next. Quote Link to comment Share on other sites More sharing options...
FallowEarth Posted March 25, 2006 Author CID Share Posted March 25, 2006 Thought I would update. I was able to resolve my IRQ sharing issue. Thank you for your help Peepnklown. I was able to do this by disabling ACPI, configuring the BIOS, and disabling devices I don't use to free up IRQs. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.