The following table describes the problems that are indicated by variouscombinations of the power-supply LEDs and the power-on LED on the operatorinformation panel and suggested actions to correct the detected problems.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, System x3350 Type 4192 and 4193 server,” on page 45 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.Power-supplyLEDsOperatorinformationpanelpower-onLED Description ActionAC DCOff Off Off No power to theserver, or a problemwith the ac powersource.1. Check the ac power to the server.2. Make sure that the power cord is connected to afunctioning power source.3. Remove one power supply at a time.Lit Off Off DC source powerproblem. 1. Remove one power supply at a time.2. View the system event/error log (see “Error logs” onpage 120).Lit Lit Off Standby powerproblem. 1. View the system event/error log (see “Error logs” onpage 120).2. Remove one power supply at a time.3. (Trained service technician only) Replace the powerbackplane.Lit Lit Lit The power is good. The server is powered-on. No action is necessary.Diagnostic programs and messagesThe Dynamic System Analysis (DSA) Preboot diagnostic programs are the primarymethod of testing the major components of the server. DSA is a system informationcollection and analysis tool that you can use to provide information IBM service andsupport to aid in the diagnosis of the system problems. The DSA diagnosticprograms come on the IBM Dynamic System Analysis Preboot Diagnostic CD. Youcan download the CD from http://www.ibm.com/support/docview.wss?uid=psg1SERV-DSAif one did not come with your server. As you runthe diagnostic programs, text messages are displayed on the screen and are savedin the test log. A diagnostic text message indicates that a problem has beendetected and indicates the action you should take as a result of the text message.The DSA diagnostic programs collect the following information about the followingaspects of the system:v System configurationv Network interfaces and settingsv Hardware inventory including PCI and USB informationv IBM light path diagnostics statusv Service processor status and configuration152 IBM System x3350 Type 4192 and 4193: Problem Determination and Service Guide
