Hardware

Ask something
Discussion Locked

IRQ error

0 helpful
6 replies

by kpike2 1 view

Closed to new repliesThis discussion is closed. It stays readable, but it takes no new replies.
I have to devices that are using the same IRQ 16. The first one is my graphics controller. The second one is the Intel(R) 82801DB/DBM USB Universal Host Controller-24C2. Needless to say, my USB scanner is not working. Could this be the problem? If so, how can I change the IRQs/. Or, what is the solution. If you need more information, let me know. Thanks!

6 replies

by jschein

Without knowing the OS, this is a tough question... But you should just unplug the scanner, go into the computer hardware, uninstall all usb devices, reboot pc (it will put back the proper usb drivers), plug scanner back in and it should work.

Good Luck.

by thechas

On a theoretical level, this should not be a problem in Windows.

Windows uses IRQ steering to allow multiple devices to share the same IRQ.

For Windows XP, you cannot assign ANY IRQ's manually. XP will even over-ride BIOS level IRQ assignments.

If the USB ports are on a plug-in card, you may correct your problem by moving the card to a different slot.

Same if your video card is a PCI card.

For on-board USB ports, start by removing the USB controllers and hubs from device manager.
Re-start, and enter BIOS settings.
Disable the USB ports.
Boot into Windows.

Re-start again.
Enter BIOS settings, and enable the USB ports.
Find the setting for update ECS and enable it also.
Boot into Windows, and allow it to find the USB ports and install the drivers.

It may also help to download and install the latest drivers for the chip-set on your motherboard.

Chas

by djent

I had a problem with a Umax scanner on USB, bottom line is that Umax said the Intel 82801 chipset is not supported. I don't know what that means. Probably Umax can't write a driver for it that works or thier USB IF is flawed.

by kpike2

Thanks for your advise, but I did not get any help from it. Thanks for the effort though.

by kpike2

I am running Windows 2000. The problem just may be the scanner itself. Does anyone have knowledge about Visioneer 8100 scanners? It keeps telling me the scanner is locked when it is not. And after doing the suggestions from answers 1 and 2 the scanner will not even get connected. Help Please.

This discussion is closed to new replies.