Hi all. This is my first request for help in a forum like this, so if I seem ignorant please bear with me. I’m having a boot problem with my Dimension 4300 (P-4, XP Home). When I came home one evening I found my computer was no longer in Windows. It was showing a black screen and a text message. I don’t recall what the message said. I tried to reboot the computer and received the message “Previous attempts at booting this system have failed at checkpoint [Keyb].” I have tried to reboot numerous times with the same result. The error comes up about 14 sec. after the power button is pressed. The Dell splash screen comes up and the progress bar progresses about 1/8 of the way. I then get a single beep immediately followed by the error message. I was using a PS-2 keyboard. I switched to a USB keyboard with the same result. I even went so far to install a new motherboard. I’ve tried pressing F2 and F8 to get into a setup screen, with no luck. I get to the [Keyb] error and no further. In addition I have tried disconnecting all devices except the keyboard and video. Again, same result. Finally, probing the voltage of the power supply pins indicated everything was in order. Any thoughts?
