v 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, Type 8872 and Type 8874,” on page 93 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.Beep code Description ActionTwo long and two shortbeepsCard error. 1. Reseat the following components:a. Microprocessor trayb. I/O board2. Replace the following components one at atime, in the order shown, restarting theserver each time.a. (Trained service technician only)Microprocessor trayb. I/O boardNo-beep symptomsv 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, Type 8872 and Type 8874,” on page 93 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.No-beep symptom Description ActionNo beeps occur, and thesystem operatescorrectly.1. (Trained service technician only) Reseat theoperator information panel.2. (Trained service technician only) Replacethe operator information panel.No beeps occur aftersuccessful completion ofPOST.The power-on status is Disabled. 1. Run the Configuration/Setup Utility programand select Start Options; then, setPower-On Status to Enable.2. (Trained service technician only) Reseat theoperator information panel.3. (Trained service technician only) Replacethe operator information panel.No beeps occur, andthere is no video.See “Solving undetermined problems” on page90.Error logsThe POST error log contains the three most recent error codes and messages thatwere generated during POST. The BMC log and the system-error log containmessages that were generated during POST and all system status messages fromthe service processor.The following illustration shows an example of a BMC log entry.18 IBM xSeries 460 Type 8872 and xSeries MXE 460 Type 8874: Problem Determination and Service Guide