Any keyboard is not working with this XP

Is this a PS2 keyboard, the kind with a round connector?  These PS2 ports often get burned out because people think they can be hot-plugged/unplugged.  If this happens, switch to a USB keyboard.

Regards,
PfSC

I have tried PS2 and USB. Neither is working.

Does the numlock or capslock lights toggle at all, like while the PC is rebooting, etc.?  If so, try tapping F8 once per second after a reboot, and select Safe Mode from the menu.  If that is successful, do a system restore to a time when it was working.

The numlock or capslock lights is not toggling at all. I have tried to select Safe Mode from reboot I still can not login into computer.

Hi Patrickfromsc,
One thing just let you know that Keyboard works fine during BIOS startup.

Another thing, after I went to BIOS and exist to reboot PC, I got message: Setup Entry Key Detected".

Does a PS2 keyboard work in the BIOS?  Or only USB?  And if you are using a USB for the first time, you may need to enable USB Keyboard / Mouse support in the BIOS.  Also, a new USB keyboard will often take Windows XP a few minutes to detect and load drivers for, so you may try hanging out at the logon screen for 5 minutes, in the hopes that it has detected it and is loading drivers.

it seems your mother board has problems; to be sure, boot from a live cd, and test if the hardware works ok :
ftp://ftp.uni-kl.de/pub/linux/knoppix/KNOPPIX_V5.1.0CD-2006-12-30-EN.iso      Knoppix      
www.nu2.nu/pebuilder/                                     BartPe

It isn't the motherboard if it works fine in the BIOS.  My guess is that PS2 isn't working because the ports are bad, and USB works in the BIOS but not in Windows either because USB Keyboard support isn't enabled in the BIOS, or because Windows hasn't had enough time to install the drivers and make it active.

well - "PS2 isn't working because the ports are bad" that is the mobo imho

Both PS2 and USB are working fine in the BIOS but not in Window XP. Another thing I just found out is both PS2 and USB keyboard are working in window but so delay that mean if you want to type you should hold key for 2 second for every single character. In BIOS there is no delay.
So I do not think PS2 or USB problem. Please help. Thanks