Problem with a dell computer..

Hi,

You may try connecting a different usb keyboard to your system. Mostly, some keyboard converted from serial connection to a usb could cause this kind of problem. In some cases also, wireless keyboard and mouse won't work when u turned on your system if the driver is not properly install.

You may also try disconnecting any other usb devices from your computer. Disconnect also your power supply then push and hold the power button for 5 seconds. Plug back in the power cord then connect your keyboard. Turn on your computer. if it doesn't work, i suggest to call your computer manufacturer and check your warranty. This could be an issue with the motherboard of your computer.

Keep me posted.

Thanks.

Jeff

I believe your problem lies with the Keyboard Chip on the Motherboard, possibly needs replacing or re-soldering. A PC repair facility should be able to check this out.

I tired a known working KB and also removed all USB devices and retried. I also tried a new power supply as it was suggested on other forums that it could potentially be an under performing PS. I disconnected all devices from the PS ie, HDD and Optical drives. i think it is the Motherboard at this point. Dell will not help as it is out of warranty.

Thanks for your consideration of my issue. i appreciate the effort.