Originally Posted by
ZZZZ
The Power parameter doesn't have anything to do with the external keyboard, it is an internal to the control thing.
Open the front panel and check the keyboard cable to make sure it is plugged into the motherboard card. Try plugging your keyboard directly into the motherboard.
I did have one machine that seemed to 'eat' keyboards, it ran great from the front panel, but it 'zapped' any keyboard I plugged in to it. The client didn't want to spend the money to pursue it; he just used the front panel keypads.