Compaq ProLiant 1000 ProLiant Server Troubleshooting Guide - Page 81

Hardware Problems Table 2-17: Mouse/Keyboard Problems continued Problem Possible Cause Mouse does not respond to movement, or keyboard does not work (continued). System is not responding and must be restarted. Switch box cable is too long. Keyboard is not connected to correct port. Keyboard does not work or some keys stick. Look for signs of spilled beverages. Possible Solution If the device or port is bad, there should be a POST error. If there is a POST error, swap another PS/2 mouse or keyboard. • If the problem still occurs with the new mouse or keyboard, then the connector port on the system I/O board is defective. Replace the board. • If the problem no longer occurs, then the original input device is defective. Replace the device. If there was no POST error, check whether the input device functions properly after the system is restarted. If the problem is still not resolved, there may be a corrupted device driver. Replace the device driver. Replace with a supported cable. Determine whether the keyboard lights flash at POST or the NumLock LED illuminates. If not, change port connections. Keyboard requires cleaning or replacement. Diagnostic Adapter If you have a server that supports the Diagnostic Adapter and you are using a PS/2 keyboard or mouse, the Diagnostic Adapter cannot be connected as a hot-plug device. You must connect the Diagnostic Adapter before booting the server on these systems, or switch to USB devices (if the operating system supports USB devices) to use the Diagnostic Adapter hot-plug functionality. HP Servers Troubleshooting Guide 2-39