PS/2 mouse port no longer communitcating

just a guess, but I bet when you opened your case, you might have bumped the cable that goes from the ps2 port to the mainboard. Pop open the case and check it out.

Hi, I would say if the port is on the motherboard itself, check (dumb as this may seem) to make sure you have the mouse plug inserted correctly, it IS possible to plug them in incorrectly & thereby not allowing the mouse to be recognized. If in factit is plugged in correctly, it is enabled in the BIOS & it is connected directly on the MB, I would have to say that yes, the port is probably bad. I have seen stranger things than a mouse port working fine for months & months & then either out of the blue or after opening a case or even just moving the pc, a device or port no longer works.
HTH
Best Regards,
Tony

I would not yet give up on that port! I recently had an experience that, believe it or not, took formatting the HD to get the mouse to work! Too long a story to explain but don't assume you'll have to replace the MOBO just cause the mouse won't work...

At LEAST, try a usb one.

Good luck.

As you know PS/2 mouse is using IRQ 12.Check that if sound card uses that irq or not.If so PS/2 mouse may not seem to be conflicted with sound card.Try to change the sound card's IRQ and the I/O addresses.Also check PNP/PCI settings in BIOS.You should set the automatic configuration and IRQ 12's setting to PNP/PCI(not legacy ISA).Good Luck

Check inside your Bios to make sure that the settings didnt somehow get changed and therefore disabling ps2 mouse support

I have had the same problem on two client systems and both were the same as yours.
Unfortunately, it sounds as though your PS/2 may have taken a static hit as you were unplugging or plugging it back in. It would be DOA. The easist way to resolve itis purchase a card based PS/2 port and install that. Use the same settings in bios and IRQ's. Saves time and money.

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