keyboard and mouse I/O conflict.

Dual boot 98/XP Machine working fine last night at shutdown.

Started up XP today and my Intel USB keyboard will not work. No problem, I keep a PS2 keyboard plugged in just for such times. As soon as I touch any key on the PS2 keyboard both the kbd and mouse lockup. Mouse is also PS2. Mouse works fine until keyboard is used. Device managers shows that Keyboard and Mouse have an I/O conlfict on addresses 60h & 64h. That explains why system is locking.

I uninstall the USB keyboard and restart. Same problem with PS2 kbd and mouse on restart - still showing conflict. I get a USB adapter and plug the mouse in USB. Mouse works fine. XP now says it cannot detect keyboard. At this point I have a USB mouse that works fine but no keyboards

I boot into 98 and all items, PS2keyboard, mouse (as PS2 and USB) and wireless keyboard work fine and show no conflicts.

Wireless keyboard and PS/2 keyboard work fine in the bios. Other keyboards work fine in the bios and 98 so this is an XP problem.

Here's what I have done so far.

Tried different keyboard
Tried different mouse
Reset Bios
Removed mouse and keyboard in safe mode.
Removed wirless keyboard.

Regardless XP will still not see a PS2 keyboard. There is a keyboard entry in device manager but XP says it cannot find the device. This happens for any keyboard I plug in.

If I plug the mouse back in as PS/2 we again get I/O conlicts and mouse will work until keyboard is used.

I have pulled my hair out on this one. I am going to try a repair installation of XP, hopefully that will work. This may take my entire 6-pack of Amber Bock.

Any other suggestions on an angle I may have missed?

Cheers,
ICE

 

Good suggestion Pete. I shall try that first.

 

Couldn't get keyboard to respons to run sfc.

Tried a repair installation and.....keyboard wouldn't respond to enter the product key.

So, formatting 30GB as we speak....might be time to dump XP altogether.

 

Too late to try this one now, but when you reformat and have a basic system running, go into the device mngr and click on the mouse properties and deselect under the power management tab, Allow this device to bring the computer out of standby ". I (and others) have had similar problems with the mouse freezing with this setting ticked by default. If you update the mouse driver at any time you may have to go in and deselect this setting again.