USB keyboard, mouse, or pointing-device problemsv Follow the suggested actions in the order in which they are listed in the Action column until the problemis solved.v See Chapter 4, “Parts listing, Type 7377 server,” on page 125 to determine which components arecustomer replaceable units (CRU) and which components are field replaceable units (FRU).v If an action step is preceded by “(Trained service technician only),” that step must be performed only by atrained service technician.v Go to the IBM support Web site at http://www.ibm.com/systems/support/ to check for technicalinformation, hints, tips, and new device drivers or to submit a request for information.Symptom ActionAll or some keys on thekeyboard do not work. 1. If you have installed a USB keyboard, run the Setup utility and enablekeyboardless operation to prevent the POST error message 301 from beingdisplayed during startup.2. See http://www.ibm.com/servers/eserver/serverproven/compat/us/ for keyboardcompatibility.3. Make sure that:v The keyboard cable is securely connected.v The server and the monitor are turned on.4. Move the keyboard cable to a different USB connector.5. Replace the following components one at a time, in the order shown, restartingthe server each time:a. Keyboardb. (Only if the problem occurred with a front USB connector) Internal USBcable, front USB connector assembly, or USB boardc. (Trained service technician only) System boardThe USB mouse or USBpointing device does not work. 1. Make sure that:v The mouse is compatible with the server. See http://www.ibm.com/servers/eserver/serverproven/compat/us/.v The mouse or pointing-device USB cable is securely connected to theserver, and the device drivers are installed correctly.v The server and the monitor are turned on.2. If a USB hub is in use, disconnect the USB device from the hub and connect itdirectly to the server.3. Move the mouse or pointing device cable to another USB connector.4. Replace the following components one at a time, in the order shown, restartingthe server each time:a. Mouse or pointing deviceb. (Only if the problem occurred with a front USB connector) Front USBconnector assembly, internal USB cable, or USB boardc. (Trained service technician only) System board44 IBM System x3630 M3 Type 7377: Problem Determination and Service Guide