POST error codesThe following table provides an abbreviated list of the error codes that might appearduring POST. See the Problem Determination and Service Guide on the IBMSystem x Documentation CD for more information about the POST error codes. Tocheck for updated technical information, go to http://www.ibm.com/systems/support/,select System x3250 M2, and click Go; then, click the Install and use tab andclick Product documentation.Table 4. Abbreviated list of POST error codesv Follow the suggested actions in the order in which they are listed in the Actioncolumn until the problem is solved.v See the parts listing in the Problem Determination and Service Guide to determinewhich components are customer replaceable units (CRU) and which componentsare field replaceable units (FRU).v If an action step is preceded by “(Trained service technician only),” that step mustbe performed only by a trained service technician.Error code Description Action062 Three consecutive boot failuresusing the default configuration. 1. Update the system firmware tothe latest level (see theProblem Determination andService Guide on the IBMSystem x Documentation CD).2. (Trained service technicianonly) Replace the systemboard.101 Tick timer internal interrupt failure. (Trained service technician only)Replace the system board.102 Internal timer channel 2 testfailure.(Trained service technician only)Replace the system board.151 Real-time clock error. 1. Reseat the battery.2. Replace the followingcomponents one at a time, inthe order shown, restarting theserver each time:a. Batteryb. (Trained service technicianonly) System board162 Invalid configuration information orCMOS random-access memory(RAM) checksum failure.1. Run the Configuration/SetupUtility program, select LoadDefault Settings, and save thesettings.2. Reseat the battery.3. Replace the battery.4. (Trained service technicianonly) Replace the systemboard.163 The time of day has not been set. Run the Configuration/Setup Utilityprogram, set the date and time,and save the settings.36 IBM System x3250 M2 Types 4190 and 4194: Installation Guide