Symptom Description INT-PIPsSystem becomespowered off.The system was operating correctly, then the systembecame powered off. SRC 0000 111x may occur when thishappens, but the SRC information is lost if the customerperforms an IPL after the failure and does not record theSRC.Notes:1. If the system has no workstation I/O processor cards,omit INT-PIP5.2. If the system has an uninterruptable power supply,perform “INT-PIP9 Utility power and battery power units”on page 112.“INT-PIP5 External noise ontwinaxial cables” on page 109,“INT-PIP9 Utility power andbattery power units” on page 112System stops. The system is powered on but is not operating correctly. NoSRC or error code is displayed. The System Attention lightis off. The Processor Activity lights may be on or off. Noiseon the power-on reset line can cause the processor to stop.Note: Ensure that the latest service processor PTF for yourrelease is installed.“INT-PIP18 PTFs not installed” onpage 114System orsubsystem runsslow.The system or the subsystem is not processing at its normalspeed (for example, QBATCH).“INT-PIP20 Performanceproblems” on page 115If the symptom for the intermittent problem you have is not listed, go to “Failing area INT-PIPs.”Failing area INT-PIPsFor use by authorized service providers.Use this table only if you do not have a system reference code (SRC), or cannot find your symptom inTable 1. Intermittent symptoms (See page 16) in the Analyzing intermittent problems topic.1. Perform all of the steps in “General intermittent problem checklist” on page 13 for all failing areas.Then, continue with the next step.2. Refer to Table 1. Failing area INT-PIPs below, and perform the following:a. Find the specific area of failure under Failing area.b. Look down the column of the area of failure until you find an X.c. Look across to the INT-PIP column and perform the INT-PIP indicated.d. If the INT-PIP does not correct the intermittent problem, continue down the column of the area offailure until you have performed all of the INT-PIPs shown for the failing area.3. Although an INT-PIP may correct the intermittent problem, use your best judgment to determine if youshould perform the remainder of the INT-PIPs shown for the failing area.Table 1. Failing area INT-PIPsFailing areaIntermittentPIP toperform:Power WSIOP DASDMSIOPComm ProcessorBusTapeopticalPerform allsteps in:X X X X X X “Generalintermittentproblemchecklist” onpage 13Analyze hardware problems 17
