Alaris COUGAR 486BL keyboard buffer filling up

[krebizfan]

I have a tower system with the Alaris Cougar 486BL motherboard. Quite like it except that sometimes it stops accepting keystrokes and makes beeps suggesting that the keyboard buffer has filled up. I have removed keyboard adapter and KVM switch and changed keyboards. What else should I check?

 

[RJBJR]

It could be a memory problem, reseat all socketed chips.
Look at the keyboard port for foreign objects.
Look at traces on MB, maybe something is under MB shorting?

 

[Eep386]

Check and see if the barrel battery on the board is leaking. Those things often leak and trash traces.... >_<

 

[krebizfan]

I checked everything I could. The keyboard port seems solid. Motherboard traces are intact. Battery hadn't leaked. It is only an intermittent problem so I will keep watching it and hoping to find some pattern.