IBM 7026-H80 Service Guide - Page 4

Riser Card Memory Placement Rules 26 I/O Drawer Features 27 I/O Drawer Addressing 27 I/O Drawer and Power Supply LED Status 28 Message Hierarchy for Secondary I/O Drawer Operator Panel 29 Primary I/O Drawer Operator Panel Behavior During Power-On 30 Secondary I/O Drawer Operator Panel Behavior During Power-On. . . . . . 31 Logical and Physical Locations 32 Physical Location Codes 32 Location Code Format 32 Multiple FRU Callout Instructions 33 AIX Location Codes 34 AIX and Physical Location Code Reference Tables 36 Cabling the CEC Drawer, Primary I/O Drawer, and Secondary I/O Drawer . . . . 48 Connecting JTAG and VS COM Cables 48 Connecting RIO and SPCN Cables 49 System Cable Diagrams 54 CEC Drawer Cable Diagram 54 Primary I/O Drawer Cable Diagram 55 Secondary I/O Drawer Cable Diagram 56 DC Power Cable Routings 57 Specifications 58 CEC Drawer 58 7014 Model T00 and T42 Rack 60 I/O Drawer 62 Noise Emission Notes 64 System Service Clearances 65 Power Cables 66 Service Inspection Guide 67 Chapter 2. Diagnostics Overview 69 Maintenance Analysis Procedures (MAPs 69 Checkpoints 70 FRU Isolation 71 Electronic Service Agent for the pSeries and RS/6000 71 Eserver Using the Service Processor and Electronic Service Agent Features 72 Service Processor 72 Electronic Service Agent 73 Chapter 3. Maintenance Analysis Procedures (MAPs 75 Entry MAP 75 Quick Entry MAP 76 Quick Entry MAP Table of Contents 76 MAP 1020: Problem Determination 84 MAP 1520: Power 89 Map 1521: Cannot Power On The Primary I/O Drawer, Operator Panel Does Not Show OK Prompt 91 Map 1522: Cannot Power On The CEC Drawer 97 Map 1523: Cannot Power On The Secondary I/O Drawer, Operator Panel Power Present LED Does Not Come On 104 iv Service Guide