USB printer disables PS2 mouse

October 16, 2011 at 00:30:14
Specs: Windows XP
I have an older computer with Windows XP and a PS2 mouse. All works well. However, when I plugged in a USB printer, the PS2 mouse stopped working. I tried turning off the computer, unplugging the PS2 mouse and plugging a USB mouse but the computer would not restart - the lights on the drives flashed then I heard a couple of beeps but there was nothing on the screen at all. All I could do was turn it off again; wait a while and try again with the PS2 mouse plugged back. And it all worked again.

I really need to get a USB printer attached. What is happening? Why does the USB printer affect the PS2 mouse? The mouse is using IRQ12 but there are no printers currently attached.

Can anyone help?

bevaau


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#1
October 16, 2011 at 04:51:47
The system refuse to start with both USB mouse and printer plugged in right? Try to start the system with printer connected then later connect USB mouse(don't connect ps/2 keyboard or mouse while system is on).
Both USB & ps/2 use +5v rail for power, if the rail incharge goes bad it will affect both USB & ps/2 devices.

You know the real meaning of peace only if you have been through the war.


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#2
October 16, 2011 at 05:00:44
Get a USB mouse so you don't need to have the PS/2 mouse plugged in at all.

if that doesn't help then get a new PSU fitted as suggested by previous poster.


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#3
October 16, 2011 at 05:23:33
He has USB mouse.

You know the real meaning of peace only if you have been through the war.


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