IBM RS6000 - 7026 - H70 Service Manual

Also see for RS/6000 7025 F50 Series: User guide Service guide Service guide

Table 3-5 (Page 6 of 10). Firmware Checkpoints.Checkpoint Description Action/Possible Failing FRUE1BF Create pwr-mgmt node. See the note on 3-29.E1C0 Create ISA ethernet node. See the note on 3-29.E1C5 Create ISA interrupt controller (pic)node.See the note on 3-29.E1C6 Create dma node. See the note on 3-29.E1D0 Create PCI SCSI node. See the note on 3-29.E1D3 Create (* wildcard *) SCSI blockdevice node (SD).See the note on 3-29.E1D4 Create (* wildcard *) SCSI bytedevice node (ST).See the note on 3-29.E1DB Create floppy controller (FDC) node. See the note on 3-29.E1DC Dynamic console selection. If a console is attached but nothingis displayed on it, follow the stepsassociated with "All displayproblems" in the Entry MAP tables.If selection screen(s) can be seenon the terminals and the appropriatekey on the input device associatedwith the disired display or terminalis pressed, within 60 seconds, butthere is no response to thekeystroke:1. If selecting the console with akeyboard attached to thesystem, replace the keyboard.If replacing the keyboard doesnot fix the problem, replace theI/O board. (See notes on 3-1.)2. If selecting the console with anASCII terminal, suspect theASCII terminal. Use theProblem DeterminationProcedures for the terminal.Replace the I/O board if theseprocedures do not reveal aproblem. Note: Terminalsettings should be set to: 9600 Baud No Parity 8 Data bits 1 Stop bitChapter 3. Error Code to FRU Index 3-37