Intermittent problemsv Follow the suggested actions in the order in which they are listed in the Action column until the problemis solved.v See Chapter 3, “Parts listing, System x3200 M2 Types 4367 and 4368,” on page 33 to determine whichcomponents are customer 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.Symptom ActionA problem occurs onlyoccasionally and is difficult todiagnose.1. Make sure that:v All cables and cords are connected securely to the rear of the server andattached devices.v When the server is turned on, air is flowing from the fan grille. If there is noairflow, the fan is not working. This can cause the server to overheat andshut down.2. Check the system event/error log (see “Error logs” on page 125).3. See “Solving undetermined problems” on page 229.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 3, “Parts listing, System x3200 M2 Types 4367 and 4368,” on page 33 to determine whichcomponents are customer 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.Symptom ActionAll or some keys on thekeyboard do not work. 1. Make sure that:v The keyboard is compatible with the server. See http://www.ibm.com/servers/eserver/serverproven/compat/us/.v The keyboard cable is securely connected.v The server and the monitor are turned on.2. If you are using a USB keyboard, run the Configuration/Setup Utility programand enable keyboardless operation to prevent the 301 POST error messagefrom being displayed during startup.3. If you are using a USB keyboard and it is connected to a USB hub, disconnectthe keyboard from the hub and connect it directly to the server.4. Replace the following components one at a time, in the order shown, restartingthe server each time:a. Keyboardb. (Trained service technician only) System board142 System x3200 M2 Types 4367 and 4368: Problem Determination and Service Guide