IBM RS/6000 7043 43P Series Service Manual

Also see for RS/6000 7043 43P Series: Supplemental service manual User guide User guide Setup instructions

Contents

Symptom ActionThe system POST indicators are displayed onthe system console, the system pauses andthen then restarts. The term "POST indicators"refer to the icons (graphic display) or devicemnemonics (ASCII terminal) that appear duringthe poweron selftest (POST).If you are working on a Model 140 or Model240, go to “Fxx Code Boot Problems” onpage 3-18. If you are working on a Model 150,go to “Boot Problems/Concerns” on page 4-28.The system stops and POST indicators aredisplayed on the system console. The term"POST indicators" refer to the icons (graphicdisplay) or device mnemonics (ASCII terminal)that appear during the power-on self-test(POST).Go to “MAP 1540: Minimum Configuration” onpage 2-21. to isolate the problem.The system stops and the message "STARTINGSOFTWARE PLEASE WAIT..." is displayed onthe ASCII terminal, or the boot indicator( ) is displayed on a graphics terminal.Go to “Firmware Checkpoints” on page 3-14.The system does not respond to the passwordbeing entered or the system login prompt isdisplayed when booting in service mode.Verify that the password is being entered from akeyboard or ASCII terminal defined as thesystem console. If so, then the keyboard or itscontroller may be faulty.1. If the password is being entered from akeyboard attached to the system, replacethe keyboard. If that does not fix theproblem, replace the system board. Seenotes on page 2-1.2. If the password is being entered from anASCII terminal use the ProblemDetermination Procedures for the ASCIIterminal. Make sure the ASCII terminal isconnected to S1. Replace the system boardif these procedures do not reveal a problem.No codes are displayed on the operator panelwithin a few seconds of turning on the system.The operator panel is blank before the system ispowered on.Reseat the operator panel cable. If the problemis not resolved, replace these parts in thefollowing order:1. Operator Panel Assembly. Update the VPDinformation in the new operator panel.2. Riser card (Model 240 only).3. System board (See notes on page 2-1)The power LED on the operator panel comes onand the system powers on automatically whenA/C power is applied.Automatic power-up is a feature on all models ofthe 7043 43P series. Refer to the SystemBoard Jumper Settings for your model inChapter 1 for the correct settings. If the jumperis set in the disabled position, replace thesystem board,Chapter 2. Maintenance Analysis Procedures (MAPs) 2-5