v 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, System x3550 M3 Types 4254 and 7944,” on page 159 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.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.Error code Description Action3818007 CRTM update capsule signature invalid 1. Run the Setup utility, select Load DefaultSettings, and save the settings.2. (Trained service technician only) Replace thesystem board.3828004 AEM power capping disabled 1. Check the settings and the event logs.2. Make sure that the Active Energy Manager featureis enabled in the Setup utility. Select SystemSettings, Power, Active Energy, and CappingEnabled.3. Update the server firmware to the latest level (see“Updating the firmware” on page 255).4. Update the IMM firmware to the latest level (see“Updating the firmware” on page 255).System event logThe system event log contains messages of three types:InformationInformation messages do not require action; they record significantsystem-level events, such as when the server is started.WarningWarning messages do not require immediate action; they indicate possibleproblems, such as when the recommended maximum ambient temperatureis exceeded.Error Error messages might require action; they indicate system errors, such aswhen a fan is not detected.Each message contains date and time information, and it indicates the source ofthe message (POST or the IMM).Integrated management module (IMM) error messagesThe following table describes the IMM error messages and suggested actions tocorrect the detected problems. For more information about IMM, see the IntegratedManagement Module User's Guide at http://www.ibm.com/systems/support/supportsite.wss/docdisplay?lndocid=MIGR-5079770&brandind=5000008.38 IBM System x3550 M3 Types 4254 and 7944: Problem Determination and Service Guide